The 9 Experiments That Will Change Your View of Light (And Blow Your Mind)

[@astrumspace]

This is a supercut of my Weird Light series, so you may have seen some of this content before, however it is now in sequence, with sponsors removed, and all the episodes tied together seemlessly. Enjoy!

[@Teddy_Miljard_of_Finland]

I may have solved that 200 year old mystery of the double slit experiment. But.. Nobody cares that you can not detect a single photon without 'touching' it. A lot of misunderstandings about the experiment setup and nobody cares..

[@rodglen7071]

Had to rewind #9 ten times. Wow. Great work!

[@streetwisepioneers4470]

​@@rodglen7071 committed ❤😂

[@98f5]

Light behaves different if its being observed. Not if im looking or not. What you said implies it is consciousness that is required for observation and that might not be the case.

[@davechapple]

... That these processions of energy particles appear as wave phenomena when subjected to certain observations is due to the resistance of the undifferentiated force blanket of all space, the hypothetical ether, and to the intergravity tension of the associated aggregations of matter. 42:5.15 (476.1) The excitation of the content of space produces a wavelike reaction to the passage of rapidly moving particles of matter, just as the passage of a ship through water initiates waves of varying amplitude and interval.

[@mensrea1251]

The Young double slit light experiment got me hooked on physics and taught me not to completely dismiss things in life that seemed unintuitive.

[@coreysellers4529]

Same here. Its crazy that the outcome changes just by looking at ot. I believe thats because you can only be in one dimension at a time.

[@redfernpixelgnomepitcher1377]

It's what made me realise that when Jesus says "God moves in mysterious ways" he was really saying "sometimes the universe can be counter intuitive..."

[@Webedunn]

@@redfernpixelgnomepitcher1377the very fact that particles will travel back in time to change an outcome tells me it’s under intelligent control.

[@ozman7744]

reality is an illusion that depends on consciousness

[@redfernpixelgnomepitcher1377]

@@Webedunn There's no time travel involved

[@ChrisToe_Fur]

I woke up at 2am to use the bathroom and go back to sleep. randomly decided to watch a few YT shorts and now here I am, wide awake and fully intrigued in your video. This is the kind of rabbit holes I don’t mind jumping down. 😂😂

[@Rokosbasil]

Inattentive ADD

[@iRossco]

Until when you're supposed to get up 🤦‍♂️

[@elberethreviewer5558]

You shouldn't use devices during the night. It will keep you awake no matter what you watch.

[@randobad]

Well, if you got at least one cycle of rem sleep, it's probably okay.

[@zfr33ze87]

1am rn

[@deus_ex_machina_]

Chapter Timestamps: 0:00 Prologue 1:18 Intro 2:55 #1 Young’s Double Slit Experiment 5:12 #2 The Photoelectric Effect 7:18 Single-Photon Double Slit Experiment 11:14 #3 Three Polarizer Paradox 14:35 Harmonics & the Probabilistic Nature of Reality 18:15 The Speed of Light? 22:12 #4 & #5 Hau’s Light Speed Experiments 22:45 #6 NEC’s Light Speed Experiments 25:42 #7 Temporal Double Split Experiment 31:14 Startling Implications 33:44 Can Information Travel Backwards in Time? 35:20 Quantum Entanglement 37:28 Fuzzy Properties 38:22 #8 The Bell Experiment 45:52 #9 Delayed Choice Quantum Eraser 50:58 Outro Alex, you can paste these timestamps into the description to create Chapters in the seek bar.

[@impaler331]

Yes þat would be cool. Surprisingly low likes on your comment so here's a like and comment.🎉

[@jaytoussaint9598]

thank you

[@deus_ex_machina_]

@@impaler331 It's because I finished almost a week later, @syiunshi made her comment on the day of upload, but there were significant problems with hers (like unprofessional titles and jumbled up order), so I decided to do it properly myself. The 'low' engagement is a reflection of the fact that viewership tails off after the first few days of upload.

[@computerjantje]

Thank you so much. I almost just closed the window at 2 minutes in because the intro was boringly slow. This schematic keeps me around for a little longer probably. Edit: I stopped watching again. too many sidesteps that are not important. I gave up.

[@deus_ex_machina_]

@@dreamsagaofficial It's not a documentary, though. It's a compilation of videos that were originally separate, so it's perfectly valid to watch them in multiple sessions. Further, not everyone has the prior knowledge to understand the complicated experiments first time 'round. The reason why I bothered to manually create chapters was a) I fell asleep to this the first time round without pausing, so it would've come in handy to pick up where I left off, and b) someone had done it poorly (no offence to the person who was only trying to help), which irked me.

[@FernandoWittmann]

This video is truly a gift. I wasn't expecting to watch until the end but got so hooked that didn't want it to finish even after one hour. I learned so much in concepts that I never thought would be able to grasp and were made so comprehensive. Appreciate the effort in doing it!

[@Deletirium]

Same, this kind of stuff is brain candy for me. I love it.

[@wonderland4515]

Right? When I tell u the video felt short ash cause when jt finished it didnt feel like an hour had gone by. It's weird how back in hg I was never too interested in these type of subjects and only now Im truly realising how beautiful mysterious and magical physics really is. If only they made learning as interesting, fun and curiosity inducing as this.

[@MountainFisher]

I did a small study on light for my reef aquarium and the symbiotic zooxanthellae algae many corals need to feed on. Coral bleaching is _not_ caused by too warm water, it is caused by lack of light that starves the algae and it doesn't take much light blocking pollution to do it. But the wavelengths of light that was needed for corals tended more towards the blue range as blue light has the most energy. This was before the availability of full spectrum LEDs and we used a blue actinic fluorescent bulb. You look at colors underwater and the first light to go is red as it has the least energy. Have you ever seen water off a boat that looked green, but when you put your hand in the water it was clear? That can tell you the depth of the water you're in is about 30 feet and the light reflected back to you is green as well. 60 feet is about as deep as green goes, then it's all blue and purple is the last color you see. You see the same effect looking at the side of a thick pane of glass. All this about light and yet there are no green stars, but their light is a result of temperature. All those bleached out corals have recovered by the way and are doing fine.

[@strategymythbuster910]

tq for your knowledge

[@ingathomas6653]

:-) Thank you also for "All those bleached out corals have recovered by the way and are doing fine."

[@joshuasukup2488]

Hmmm, why aren't there any green stars?...

[@MountainFisher]

@@joshuasukup2488 As temperature goes up it goes from red, orange, yellow, white and the hottest stars are blue. No green, but white light is made up of red green and blue. All colors come from those three.

[@MountainFisher]

@@ingathomas6653 Funny how they don't report about the recovery isn't it?

[@syiunshi]

Re-watching reference: Warning 0:00 Preface - 1:04 Double Slit Experiment - 3:22 Photoelectric Effect - 5:26 Hey, I can still see the letters :) - 12:51 Interlude - 17:36 Light Speed is not Constant 18:30 Three-Polarizer Paradox - 11:22 Hau Light Speed Experiments - 22:17 NEC Light Speed Experiment - 22:53 Break Time - 33:00 Time Slits Experiment - 26:03 (someone should transcribe the results of this experiment into the visible light range so we can see how the frequency is affected before our eyes) Bell Experiment - 38:26 Delayed Choice Test - 46:14 Btw light might just be the result of EM waves interfering with itself as well as the waves involved with the observance of it, and at these heightened moments of energy the overlapping is perceived by us as light being a particle. Or perhaps it's analogous to a reflection, like when the sun catches you off a car's windshield Is this a reupload? :)

[@syiunshi]

Is it possible to include a 3rd phase on the delayed choice gate? with a 3rd detector (still only reflect or not on the first gate, so 2 phases)

[@juliavixen176]

A bunch of clips in this video have appeared in previous Astrum videos, and are being reused here.

[@kindlin]

Why did you put it in some weird order?

[@astrumspace]

It's a supercut! This weird light series was written with the intention to put the individual episodes into one long episode afterwards, and this is the end result.

[@TymexComputing]

Exist enial ? Who is reading it?

[@PaulsPubAndBrew]

I almost didn't watch it because i foolishly didn't think I'd learn something and didn't want to spend almost an hour to find out. I had not heard of 2 of these experiments, but more important than that, the ones i have heard of were explained here better than I've seen before and i felt i learned something from all of them. Incredibly well presented! Bravo

[@mattstone8878]

If you gotta poo...make it a stinky poo. The stinkiest poo's...are sometimes the most satisfying 😌 💩

[@VoltisArt]

I had a 51-minute video about a Mars rock in my sidebar for a couple weeks last year. Yeah, I'm not going to sit through that much video on a rock, but in morbid curiosity, I clicked... Then, I watched the entire thing, was deeply entertained and learned stuff, and have been a subscriber since. Welcome to the club!

[@iRossco]

​@@mattstone8878 Fool

[@hadenshaffer9674]

Check out the books by Phil Hine

[@readtherealanthonyfaucibyr6444]

I knew about the double slit but not in regards to TIME! Blithering babooshkas!

[@anthonywood7420]

I've got to watch this a few times, and sleep on it before I've got a chance of getting to grips with the problem. A great post, mind blowing.

[@kilianjames1116]

Incredibly made video, you have explained in simple terms concepts I never thought I could understand. That lightning explanation is such a beautiful analogy for the time slit experiment!

[@ganjacat8408]

Sorry to say, but don't take too much of what these videos take to heart. They are half truths dressed up with VERY bad information and philosophical mumbo jumbo

[@PoleTooke]

... People understand this? I think i understand parts of it. Sort of. But certainly not a majority hahaha (not that this is the video maker's fault, of course, it's a super confusing topic)

[@phillipsmit1140]

I am not a scientist. I have done simple experiments with light in the past. My theory is as follows: A slit have 2 walls, left and right. If you take away the left wall and do the experiment, you see less interference to the left and normal interference to the right. That simply means that the right wall of the slit interfered with the photon. The photon did not interfere with itself. The closer it passes the wall the more the interference. The last smallest edge of the wall has the most influence on the photon because a very long wall do tot change the interferance. I know most people wil say i am wrong, but that is how I interpret what I saw.

[@JaquesNaurice]

Just wow, this video completely blew my mind. The temporal double slit baffled me entirely and left me with the question if light has his own velocity.

[@ronsimpson8666]

Light doesn't have a speed. It has a rate of refraction. It's rate speeds up and slows down - depending on the medium it perturbating.

[@eliteextremophile8895]

just like ronsimpson8666 said, there by definition is no velocity because light has no mass.

[@randobad]

Light is fluid

[@ronsimpson8666]

@@eliteextremophile8895 light doesnt have a speed, it has a 'rate of refraction' for whatever "medium" it's refracting through'. ❤️✌️

[@sashimi879]

Bunch of 🤓 in this thread

[@SerratedPVP]

My brother and I don't get to see each other a lot anymore. And our lives have changed a bit so it's harder to find things to talk about/relate too. However, it's often that one of us will watch an episode and find it so interesting we have to call/text and have a conversation about the video and topic.

[@Tzuurp]

Cherish those moments and take every chance you can to reconnect. Never know when it’ll be your last, I’ve lost 2 of my brothers and I regret not reaching out more. I regret it everyday

[@show_me_your_kitties]

How wonderful ❤ I used to do the same with my brother, he was taken way too soon from this world, but he will always be a part of mine ❤

[@eamonia]

Astrum; Keepin' the love alive. That would be a great motto for the channel.

[@SerratedPVP]

Thanks guys, :)

[@aapex1]

Hands down THE best science channel around. Worth paying for!

[@dazzassti]

After doing physics many years ago at school and always had an interest in this stuff I’d recently started to wonder just how long is a photon. I found a great video by HuygensOptics puzzling the same question, he did a fantastic vid about this explaining about the dual slit and duality. Basically the photon is actually huge, it is definitely not a point like particle, it’s a wave that occupies a large area as it propagates through space, I.e. the electromagnetic wave is oscillating in two directions, if this is interrupted it then collapses to a point. This explains why a single photon can pass through both slits and interfere with itself. Watch his video it cleared up a lot for me, but as we all know light is insanely nonsensical

[@capgains]

I love you

[@rbh1151]

I concur! HuygensOptics seems to me to demystify the duality. Basically, an electromagnetic wave is spread (unequally) in space and can vary in magnitude continuously following the inverse square rule. BUT - to interact with a highly localized atom or molecule, it is all or none - a quantum event that happens or doesn't, and follows the probabilties of quantum mechanics. It is the receptor atom that has quantum & highly localized properties, not the wave.

[@MGForums]

Wander or wonder? Was that just a typo?

[@dazzassti]

@@MGForums fingers and a whiskey lol

[@kennethmortensen6990]

Exactly - I realized this 30 years ago, as there's no way to produce a single wave in any medium. Unfortunately this produces a lot of brain farts, like this video - explaining "the obvious" in obscure and illogical ways. Nature is always extremely simple when we actually learn the basics, so forget about time travel and entanglement, this is just the human mind getting carried away...

[@MtHermit]

You are a great teacher, Alex. I don't know what you do outside of KZbin, but you have a wonderful knack for explaining the absurdity of the universe. I thoroughly enjoy your videos.

[@Rudyard_Stripling]

Oh come on, you call it observing but in reality, you are checking the light with an instrument that changes the energy of the photon, it has nothing to do with actual observation like watching it from a human perspective.

[@ProfessorJayTee]

@@Rudyard_Stripling Just admit that you didn't understand the video, FFS. Because you didn't.

[@Rudyard_Stripling]

You are the one who can't understand the difference between taking a measurement and observing. You are clueless and easily fooled. Boy, Was I Wrong! How the Delayed Choice Quantum Eraser Really works Arvin Ash 917K subscribers Join Subscribed @@ProfessorJayTee

[@SebHaarfagre]

@@Rudyard_Stripling You do realize that your eyes are an instrument, right?

[@CheckmateSurvivor]

Einstein was the biggest scientific fraud in history.

[@simonreeves2017]

Hi Alex, greetings from Oxford. I’m 58, I am fascinated by physics. The duality of particles is mind boggling. Anyone who says they understand quantum physics/mechanics is lying, either they have a superficial understanding, or none at all! Great minds have pondered this perplexing behaviour for decades. Then there is superposition and entanglement. What we do know is that the mechanisms that run our universe are currently incomprehensible to the human mind.

[@safdaralli2567]

Well said sir..however I will say that I am very grateful for all the brilliant minds who over the decades have tried to shed light on the nature of light..I'm just a lay person who also loves physics..but understanding it is very difficult for me...btw just for info, at the 35:49 mark the correct name should be John Stewart Bell, not Steward, perhaps just misspelled. An excellent video to look at if you care...EINSTEIN'S QUANTUM RIDDLE..I enjoyed it thoroughly.

[@Meks450]

Anyone who says they understand 😂 it’s not that hard to understand you changed the experiment by observing it? Schrödinger cat mate you should not make so many assumptions

[@Meks450]

If you can get past what you think about other people… you might know we can see the same event twice…. So fabric of time can have different paths. The same light has reached us at different times. I wouldn’t want too be 58 and be so narrow minded and at the same time be enlightened by my own thoughts and opinions

[@WeighedWilson]

I think we just haven't invented the correct sensors to properly observe light and quantum entangled particles. Like how our eyes can't see the shorter wavelengths of light. It's there, but we can't see it with the default sensors.

[@richardvanmetter]

Understanding is often nothing more than familiarity and comfort with an observation. Many aspects of quantum mechanics are simply unfamiliar because we don't normally experience them in everyday life. The more one studies physics, the more familiar these results become and the less we experience lack-of-understanding. That said, even after a lifetime as a physicist there are many aspects of the observable universe that remain quite fascinating and difficult to "wrap my head around". Without them life would be much less interesting.

[@ericc6820]

There isn’t a word that accurately describes how cool this video is.

[@BoxOfCurryos]

Bro donated a money to a AI science spam content farm 💀

[@djkoenig]

I believe the word was "existennial"

[@iRossco]

​@@BoxOfCurryoswhat are you on about

[@Johnny.P.Drizzle]

cool

[@ryannygard3661]

I used to work with radar and I found light to be one of the most fascinating and complicated subjects.

[@redfernpixelgnomepitcher1377]

All types of radar? What's your opinion of Radar Love?

[@jthepickle7]

You would know how radar detects a ship far over the horizon. Does radar 'bend' somehow?

[@beaubenraw]

@@jthepickle7 Put the radar transmitter/receiver on a pole.

[@InFeCtEdsnich]

@@jthepickle7it doesn’t bend, but reflects. It’s know as (over the horizon) radar. They reflect the radar beam off the ionosphere.

[@tmst2199]

I assume electricity also bent your wits. I'm convinced that nobody understands it but just has handy procedures to manage it, somewhat.

[@Marf-yt]

That last one makes sense to me (the delayed choice). It would be weird if it didn't react to the second beam splitter. Look at it from the light's perspective. Moving at velocity c as light famously does, the lorentz factor is infinite (the universe's divide by zero error). This means light doesn't experience time. From the reference frame of the light, it is emitted and absorbed in the same instant. The splitter being added or removed can't occur between chronologically. It's everything all at once with light.

[@fedzalicious]

This is exactly what I was thinking, but I'm no physicist.

[@attilahorvath5972]

Yes, I wanted to add the same comment. There is no before, or after, from the perspective of the light. Same thing explains the time split experiment. If you send two photons one after the other, they can still create the interference pattern as time does not exist for them.

[@Ziorac]

I got high as hell one day and just.... Realised this on my own. And then I got really freaked out, because yeah, to light, everything is instant. And my mind broke as I realised time is a lie based on perception.... Weed and physics together is fun. :D

[@worm7807]

In that case I wonder what the results would be if tested in a dense medium such as glass or that cloud mentioned earlier in the video.

[@VladimirZaitsev-u8l]

The speed of light is non constant and might be slowed down dramatically, the experiment might have been executed on these conditions

[@Fake_Jesus]

38:20 Correction a tree falling in the woods makes vibrations . If an animal ear is influenced by the vibration, it becomes sound, for the animal.

[@baconheadhair6938]

This isn’t a correction. It’s giving a semantical answer to a physics/philosophy based question and it’s not even an answer. You are describing what you think is logical. Not ending the debate after finally finding the correct answer as you seem to think

[@baconheadhair6938]

To elaborate on what I mean, sound IS the vibrations. If a tree falls in the woods and it makes s vibration, it makes a sound. A sound is not a physical thing. something cannot “become a sound”. That’s the term for the vibration itself. This comment is arguing what a sound actually is more than whether or not a tree makes a sound.

[@DonwalterWimalaratne-wv3ye]

Only one who is enlightened will see all dimensions because enlightened one escaped from what illusion the mind does

[@NefariousTV]

Dude I swear to God, it is 3:37am at the time of writing this, and I just picked up a burrito from a place I go every now and again. I was just about to take a bite of it at the 33:54 mark of the video and I legit stopped and put it down. I'm not eating it. That literally exploded my already exploded brain. That was the most synchroninistic thing I've ever experienced in my life... 😂😂😂😂

[@NefariousTV]

50:51 I'm going to the casino at this point. 😂😂😂😂

[@spiritinflux]

Yeah... the universe is a joker.

[@Weelki]

One explosion saved another from occurring elsewhere in your body... potentially... I bet you ate it anyway ;)

[@NefariousTV]

@@Weelki eventually my fatass succumbed to the burrito but not until the next day 😂

[@Weelki]

@@NefariousTV This is the way.

[@markkinnon4866]

"Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always got there first, and is waiting for it." - Terry Pratchett

[@-dg4ml]

Agreed, My way of saying it is " When God said"Let there be light it was already dark"

[@plo8monster]

1 candle of light and darkness flees!

[@jguti860]

Yes dark is the absence of light

[@trakaiszeks]

One of my key takeaways is - To test / to detect means to interfere. You cannot look at a light without blocking it. You cannot observe anything by any method without affecting the result. Also particles in space do get affected by the space itself. Particles we fail to detect as of yet are still traveling through our detectable particles and affecting them, potentially causing the entanglement. We're still breaking down particles into their consituents and are hitting serious limits with testing equipment, as to detect increasingly smaller and weaker energy emited by those particles becomes near impossible. I heard that the light appearing to travel back in time was caused by error in testing environment/methodology.

[@nelsonomekke492]

My thoughts exactly. Light may not be interferring with the past but the limitations of our tech give that impression

[@markarich159]

You’re absolutely right. All of these so-called experiments are simply thought experiments. There’s a whole channel devoted to the disingenuousness of these so-called experiments. There is no such thing as a single photon detector. The name of the channel is. FractalWoman

[@jasjitsingh5457]

Amazing explanation. Loved it. Will watch it multiple times again to fully comprehend

[@alexi077]

Keep in mind that while we observe the Photon to travel at the speed of causality, from the Photons perspective the "speed" is Infinite. no time passes for the photon itself. the photon cant mesure any time between its departure and arrival. departure and arival happen at the same time therefore if you send 2 photons at different points in time that are close enough to each other they can interfere and seem to interefere with the past because WE experience time.

[@carcarcool6262]

So because the photon is chrono dialated to the point time is at a standstill when observing it we lock it into a defined path therefore it was always that way? How does this work when going through mediums that slow the speed of light?

[@alexi077]

This is a good question and if i could answer it with ease, i would not work as an automechanic but as a quanto mechanic 😂

[@alexi077]

​@@carcarcool6262there is a theory that light is slowed down in materials because light is basically moving waves of electromagnetic fields which interfere with the electrons which have their electromagnetic fields of their own. when light passes through materia, an electromagnetic wave in opposit direction is created which Shows slows down the light.

[@alexi077]

​@@carcarcool6262 a photon is basically a wave packet in the electromagnetic field. In vacuum there is nothing that interacts with that wave -> C. In matter there are protons and electrons moving. Moving charges have their own Interaction with electromagnetic fields. a passing excitment with "A" frequency a (photon) hasnt a free path but hast to interact with the charges in that Medium with the frequency "B". Laying over those frequencys with A>>B we get frequency C somewere inbetween A>C>B. Slower frequency, means slower passing through.

[@dab88]

so according to the photon it never assumes a superposition or follows a wave function? Interesting that we percieve this along with time - both of which are irrelevant to the photon.

[@Dennistube001]

i used to work with cement. its obviously quadrillions of particles. but it also acts like water when theres a large amount of it. it can produce waves when severely disturbed. you can even drown in it if you fell into a silo of it. so perhaps massive amounts of very very small particles can act as waves. that would make photon particles in bulk act as waves. so perhaps light is waves of particles

[@paulryan94]

Single photons have wavelike properties

[@Dennistube001]

@@paulryan94 ?

[@paulryan94]

@@Dennistube001 You say "so perhaps light is waves of particles". This is not true. Single photon experiments show that the wavelike properties of light can be ascribed to the single photons themselves. And so the wavelike properties of light are not an emergent phenomenon of an ensemble of particles.

[@Dennistube001]

@@paulryan94 ?. the wave patterns seen from the double slit exp are not caused by 1 photon. more like an acumilation of particle hits leaving a pattern. yet i see it says Each photon behaves like a wave. so thats a total existence falure of my logic.

[@paulryan94]

@@Dennistube001 there are double slit and other experiments that use single photons. This is of central importance to QM. The individual photons/ electrons/ etc act as waves or particles.

[@brown2889]

Some of this reminds me of watching extremely high speed footage of lightning or plasma trickling down looking for the path of least resistance. Mind boggling! No soon had I written this comment Alex mentioned lightning as an analogy. This episode is really deep and I absolutely love it!🙃

[@SebHaarfagre]

Oh, you too lol It's fascinating... most lightning starts from the ground up, not from the sky towards the ground. I guess that is besides the point but... When it comes to light, I think, it may not be the "enforcer" in its situation, but rather as a string being plucked - by something, _someone._ But how does one "end" go from "dark" to "light" ... this is when I started thinking about lightning

[@brown2889]

@@SebHaarfagre oh you get it for sure! I like that. Merry Christmas 🎄

[@magnusshrugged]

​@@SebHaarfagreThe Aether

[@gabrielpfgm]

In the end, we're all in an RPG

[@staiain]

Thank you so much for all of your amazing AND frequent videos.

[@Eireternal]

Delayed choice has been creamating my brain for the past decade. Glad you covered it. Really does trash your morale when you think you can outsmart it.

[@LadyEtWatch]

Ahhh..the pros n cons of over- thinking

[@patsweeney4220]

Creamating is not a word, but should be.

[@Special1122]

it is not backwards time traveling

[@Eireternal]

@@Special1122 didn't say it was

[@ninjakannon]

I don't understand the confusion. Waves propagate until they are measured. So, surely, the wave propagates down both routes in all scenarios. When there is only one detector, the probability distribution collapses to a single detector with 50/50 probability when it reaches the defectors. When you introduce a second beam splitter after the wave has propagated through the first, the wave interacts with it when it reaches it and its probability distribution is affected accordingly. What am I missing?

[@Darkurge666]

What if light is in a higher dimension, and it only intersects when it interacts with our physical reality? So its not about how fast lights "move", its about how fast our dimensions can interact with it. Like a framerate of the universe, if you will. It can potentially be anywhere (and maybe it is, in a higher dimension), but our experience of it is limited by the intersection and time of our physical dimensions. It looks like a particle, because that is the intersection. But like a hole in a paper target, the bullet going through it is not actually the shape of the hole. It has a length and a tip, which you cannot tell from the hole in the paper where it penetrated. The same way, our dimensions cannot tell the full shape of the light, because we can't experience more than our 3 dimensions (4 if you count time). Because of time, it looks random. And we can't go back in time, so we can't say if it would be the same if we did the same measurement over. Since time is always passing, every measurement measures a different part.

[@PazLeBon]

i like how that theory can be brilliant or absolutely hilarious :) we will never know

[@iamatlantis1]

Some good weed?

[@Adam-xr6fj]

Interesting

[@AverageAlien]

There are no "higher" dimensions

[@SaltyAsTheSea]

​@@AverageAlien classic alien, always correcting people as if they too got to see the Flormb dimension 😒 nothing's higher when you've got to see it all

[@jesmarina]

Nice video. The truly great thing about the results of the experiments, is that it just shows that there are lots of things we still don't know about the world.

[@jimmyb.5356]

What if we ran the last experiment using the double splitter test slowing down the light particle using the ultracold cloud. Could we observe the test at a slower pace?

[@Mel-jf9gx]

smart suggestion but that beam of light will act as a photon ( particle ) since its wave function will collapse by our act on it

[@Ellier215]

@@Mel-jf9gxinteresting!

[@TheRecycledToys]

this has to be the most exhilarating video I have seen in years. Thank you for making it simple to visualize excellent entertainment for the mind Definitely subscribed

[@jtmacri1]

Always seems to me when I am learning about this stuff that space is probably just as relative as time. Nothing knows what its supposed to be until it interacts with something else and what it is seems to be partially determined by what it's interacting with.

[@Rudyard_Stripling]

Boy, Was I Wrong! How the Delayed Choice Quantum Eraser Really works Arvin Ash 917K subscribers

[@kparker2430]

reality is only rendered on demand thus conserving energy - no one needs a reality if there is no one around. It would be creepy as well. Some reality just sitting there unobserved is going to spawn some ultra reality for its fun.

[@jtmacri1]

@@kparker2430 That's what the My Big T.O.E. guy thinks is going on. That implies that reality is a construct of the mind. Seems plausible but I guess we won't ever really know.

[@jtmacri1]

@@aregeebee201 ok

[@remoborsella5194]

This is by far one of the best video I have watched in relationship to quantum mechanics and quantum phenomenon. Your explanation is absolutely clear, the images and videos you chose are extremely well adapted to the topic, and I am looking forward to watch more of your videos.

[@stephanieparker1250]

I love listening to Alex, his gentle, smiling voice is wholesome and relaxing. Much needed after the hectic day is done. Thank you, Alex 🥰

[@tomorowsnobodys]

Trueeee

[@deathmagneto-soy]

I often imagine him narrating murder mysteries.

[@daveogfans413]

But he said existinial in stead of existential in the intro. Besides that, good narrator for sure.

[@RyanEglitis]

The delayed choice experiment doesn't actually violate causality (go back in time), that's just a common misunderstanding of the experimental setup/results.

[@liranxs]

how so?

[@deus_ex_machina_]

​@@liranxs I can't vouch for Ryan's assertion, but Sabine Hossenfelder's video on the topic is the best example of that argument.

[@sirmagnus99]

Isn't all of this just misunderstanding. Every time he makes partials think/feel/decide/want, it just irks the hell out of me. The efforts of this world to make us all "stupider" astounds me. Throw out all of the assumptions and untruths. why do they make up these narratives. Simple answer is they have nothing of substance to say but they still need funding...

[@ZZ-by9zk]

Viewing all the fundamental particles and light as each being it’s own field takes out all the strangeness honestly. There is non”spooky action” at a distance when it’s just one entire field connected to itself.

[@michaeldoran4367]

VEINY PUERTO RICAN KOK FORCED INTO A WATERMELON AND IT BLASTED THE WATERMELON IN THE ASS!

[@PoleTooke]

@@michaeldoran4367.... Tf?

[@kapsi]

But a field is something that fills space, so distance in a field is still distance.

[@ZZ-by9zk]

@@kapsi distance implies a space between two points in space. If it’s all just one field, it’s the same point.

[@kapsi]

@@ZZ-by9zk A "field" is a mapping of points in space to some values, for example temperature in different cities on a weather map. So there's no field without distances between points.

[@pirixyt]

Could you please explain how two random particles are entangled or known to be entangled for the experiment? And can there be entanglement between more than two particles? And which particles are these?

[@ryanjones998]

They aren’t two random particles. The experiment uses monochromatic light or the same kinds of particles. So the light (or whatever particle) acts like a particle when we measure it but it communicates with other light Particles like it is part of a wave or cloud. We described that odd relationship as some sort of entanglement in space and time that we can’t explain fully still.

[@WhoTheLoL]

The way I think of light being a wave function that collapses when it interacts with anything is that I imagine a lightning bolt. When lightning begins to spread from the cloud, it travels in multiple directions at once. If it's heading towards the ground, it will form the familiar reverse-tree-like pattern. However, once it connects, the entire charge rushes through the established path, ignoring all the other branches it created along the way.

[@kayakexcursions5570]

Sounds good.

[@thomasmyers9128]

Lighting starts from the ground…..

[@kayakexcursions5570]

@@thomasmyers9128 No.

[@WhoTheLoL]

@@thomasmyers9128 not really, but that doesn't matter. There is a volume of air through which the ionization propagates until one path connects the cloud to the ground, at which point the entire charge that was spreading through the air rushes into the established path. In a sense, the lightning is like a wave that is traveling through the air and collapses into a single path upon contact. It's not a scientifically accurate conparison but that's the best description I can think of.

[@lifeunderthemic]

From inception, you have failed. Lightning is a collapse. Not a ground to cloud bolt of fiction. You're not in Kindergarten anymore. *"reverse-tree-like pattern" You mean a Fractal?

[@0ptimal]

This is one of the best videos. I love this guys grounded yet wondrous infatuation with the universe.

[@mcwulf25]

I have seen so many videos on this subject. This one nicely summarises the main experimental outcomes. There is still so much to be understood with quantum mechanics.

[@engineerahmed7248]

There is no law of quantum mechanics except orbits being quantized.....Since primary mechanism of light production happens to be jumping electrons across orbits, light happens to be quantized but doesn't have to be. Radio & microwaves r equally EM waves ie light waves, but they aren't quantized. They never say a photon of radio wave. We must do these light tests on these invisible waves.

[@stephanieparker1250]

7:48 I would love to know how it’s possible to emit a single photon at a time. Video idea!

[@chudleyflusher7132]

Neutral density filters?

[@stephanieparker1250]

@@chudleyflusher7132 I’m not sure what those are but it sounds good. :)

[@JorgeMartinez-xb2ks]

@@stephanieparker1250 According to ChatGPT: ND filters don't apply here. To generate individual photons, one common method is Spontaneous Parametric Down-Conversion (SPDC), where a high-energy photon splits into two lower-energy entangled photons. By controlling experimental conditions, these photon pairs can be emitted sequentially. Another approach involves using atoms or molecules in excited states, which can emit individual photons as they return to lower energy states. These methods require precise control and often involve optical devices like beam splitters and mirrors. Detection systems are crucial for identifying and recording individual photons. Overall, creating controlled conditions and manipulating quantum states are key to generating and observing individual photons.

[@o0Donuts0o]

@@chudleyflusher7132Q-36 Space Modulator. Or can we say any 3 words with 0 context and pass it off as information?

[@andrewpotapenkoff7723]

They just politely ask photon to behave.

[@LoneTiger]

32:40 I think it's not "time" but the "4th dimension" itself where light is sneaking through, an actual physical dimension we humans cannot perceive, yet. Light is merely stepping "sideways" from 3rd to 4th dimension and returning to reach its destination. To us, it appears as light going through time, when in reality is sneaking through another path of less resistance, just like water does.

[@tmst2199]

I have a sneaking suspicion that this is correct, at least inasmuch as there's something wonky and completely baffling about electromagnetism in general.

[@fleetwoodbeechbum]

I've been looking for other people who also think that time is a spatial dimension for decades. So, in your opinion, is that what you believe or is the 4th dimension something besides time? I believe so because of the information I got before and the instant my sister died in 77. And since then I've, also, thought that it would explain the double slit exp. and behavior of electrons, and probably the instantaneous nature of gravity and the electric force. But so far, every one who believes in higher spacial dimensions makes it a religious issue. And standard theory has the time dimension as some other thing. But I have been thinking that time is a spacial dimension for a long time.

[@LoneTiger]

@@fleetwoodbeechbum "Time" is abstract, I do not think time to be a dimension at all, but the 4th dimension would be a fully an actual physical one we cannot perceive, yet we exist within it. Think of it this way, lower dimensions can exist within our 3-dimensional universe, we can draw a dot on a piece of paper, a line, a circle. A 3-dimensional being can explain "height" to a 2-dimensional being, but make him/her understand it is another matter. (No point of reference.) So by this logic, our 3-dimensional universe exists within a 4th or 5th physical dimensional universe, and light is one of those little exceptions to the rule, so it sneaks through dimensions as it travels, but becomes fixed as it's measured. We humans, think ourselves "advanced" we can perceive the 3 dimensions in our universe, but we are very limited, we can walk forwards and backwards, left or right, but we have very limited capacity to move up or down, heck, birds and fish beat us by moving in 3 dimensions far more easily than us, it is very likely that birds and fish have a very small perception of the 4th dimension, since they have a far better grasp of the 3rd dimension than us. If you ever see someone walk through a wall without breaking it, try to ask that person what dimension he or she or it came from, since it moved 'sideways' to pass through the wall.

[@kjelleriksson2793]

@@LoneTiger The only genuinely 2-dimensional "thing" I can think of is a shadow.

[@denelvo]

Well, light travels at the speed of light, so relativity tells us that it experiences no time. Fast through space, slow through time.

[@TheWeatherbuff]

Thank you, Alex! I'm glad I can watch this over and over so it'll sink in. 😊

[@PowerMadLabRat]

Existential* 1:34

[@degmddgmdpa5572]

The most attractive explanation (to me) for all of this is the simulation hypothesis. Yes it just kicks the can farther down the road, but what physics doesn’t?

[@Special1122]

how is checking all paths by light more efficient than simply one straight path

[@dab88]

@@Special1122 the wave function is just some advanced tesselation/Nanite graphics tech on a grand scale. There's no way to simulate a universe and store that much data without making a star/black hole so you gotta compress it like crazy. So you have a clever hidden variable in the form of some extra dimensional algorithm that creates the extremely fine quantumn detail we witness and measure... but only when we look. coz no point processing all that unless somebody wants to see. I mean, why not?

[@RokStembergar]

Thank you for making this supercut! :) i got stuck on one of them months ago but now, seeing the bigger picture, even i can understand:)

[@jedison2441]

Nothing like a litte late night with an Astrum video.

[@girishbhandari]

This videos taught me more than any of my school and college physics about light. Brilliant. Keep up the good work.

[@classic.cameras]

As a photographer. Thank you for making this. It explains a lot.

[@Thesamurai1999]

Now you can make better photos

[@covert0overt_810]

photons = magic

[@classic.cameras]

agreed! I try to do magic every day via some melted down sand thing infront of a computer thing and hopefully its in focus. @@covert0overt_810

[@Jerberto]

Great video, loved how you explained so complicated experiments!

[@Dorf274]

I like how light and sound is telling me about how light and sound can work and it doesn't even know the full answer itself.

[@markbloomer4500]

This is brilliant! Stunning presentation! Quantum entanglement is truly mystifying, and it is making me wonder if there may be a field that is even more basic than space-time onto which everything else emerges.

[@motjuste8549]

I think the double-slit experiment results have something to do with how the detectors at the slits actually detect the photons. It seems to me that you can't detect anything without somehow redirecting some level of energy from the thing you're detecting. Whatever that energy is gets siphoned off the photon by the detector leaving a particle remnant. I don't know. You're right - this does kind of hurt my brain.

[@maxveldman2789]

That still doesnt explain the last experiment

[@motjuste8549]

@@maxveldman2789 I'll google what a beam splitter is and get back to you.

[@Rudyard_Stripling]

Yes, it does.Oh come on, you call it observing but in reality, you are checking the light with an instrument that changes the energy of the photon, it has nothing to do with actual observation like watching it from a human perspective. @@maxveldman2789

[@charlesbrightman4237]

Wave, Particle Duality, Better explanation? It is only an idea on my part but it goes something like this: 1. Charged particles have their associated magnetic fields with them. 2. Protons and electrons are charged particles and have their associated magnetic fields with them. 3. Photons also have both an electrical and magnetic components to them. 4. Whenever a proton, electron, or photon is shot out of a gun, it's respective magnetic field interacts with the magnetic fields of the electrons in the atoms and molecules of the gun itself, the medium the projectile is traveling through (ie: air), and/or from around the slits themselves. 5. Via QED (quantum electrodynamics), newly generated photons might occur. 6. The projectile goes on it's own way and the newly generated photons go on their own way. It gives the illusion of a wave particle duality, but it is not that way in actual reality. 7. Specifically in the case of protons or electrons, the newly generated EM wave travels faster than the particles. The new EM waves go through both slits and sets up "hills and valleys" of field energy. When the proton or electron goes through one of the slits, it then follows whatever "valley" it enters thereby over time, even shooting only one proton or one electron at a time, the interference pattern will still emerge. 8. As far as detectors are concerned, they probably have an energy field that is one way when on and a different way when off. The interaction of this energy field (or the lack thereof) with whatever is passing through it, gives the indication that is observed. Now, for those who hold fast to reality being probability waves that are condensed down by an observer into one single physical reality, then: a. What exactly are these probability waves made up of? b. Where exactly are these probability waves stored at until they are observed? c. How exactly does an observer in physical reality actually observe these probability waves and condense them down into one single physical reality? d. Who and/or what observed the first observer? e. What exactly happens when two or more observers observe different probability waves? Which one takes precedent in physical reality? For me, while this observer condensing probability waves down into one single physical reality might work well on paper, it does not appear to reflect actual reality. Now, utilizing the scientific principal of Occam's razor, which way is more probably correct? My way by utilizing known scientific principals, or that is as discerned on paper as stated above is how reality actually is?

[@Rudyard_Stripling]

Boy, Was I Wrong! How the Delayed Choice Quantum Eraser Really works Arvin Ash 917K subscribers

[@thebogsofmordor7356]

Has anyone ever done a delayed choice experiment concurrently with the time slit experiment? Maybe the frequency shift would also occur when the photon "travels back" through the original splitter?

[@oldmanballs787]

I believe they have, and even have a computer randomly decide AFTER the test to decide for us whether or not we become an observer. Still didn't trick it. It's wild lol

[@xKapnKrunch]

The double split experiment is the most misunderstood experiment in physics. The problem is in the detection, they say "simply by observing it it changes" That's an incorrect description of what happens though. Let's say me and you are in a dark room with absolutely no light. I'm in the corner making no sound. How would you know I'm there? You would have to find a way to detect me. The easiest way would be to turn a light on. Hey look! I'm over there! The problem is In order to see me, you had to touch me. You had to bounce photons off of me and then receive them. So by the very nature of observing something you have to perturb it. By doing so you change it collapsing the wave function. It's not observing the data that changes it it's the sensor being on that changes it.

[@oldmanballs787]

@@xKapnKrunch no it isn't though. It's a huge anomaly in quantum physics and if it was as simple as 'oh equipment changes it from wave to particle' they would have realized. The sensor does not pick it up until information has already been processed (in this case, photons have already passed through the slit). The sensor is picking up on the wave/photon AFTER the slit, but the photon is 'deciding' its move BEFORE the slit. So if it was changed from wave to particle after sensor, and not the slit, we would have completely different results. Example being photons dispersed in areas that should be shadows, if it was changed due to the post-slit sensor.

[@xKapnKrunch]

@@oldmanballs787 you stopped making sense after "the sensor is picking up on the wave/photon AFTER the slit" That is absolutely wrong even though this video points it out. Stop watching KZbin hits for your physics information.

[@xKapnKrunch]

@@oldmanballs787 from the most recent published paper on Harvard EDU "younge's double split with quantum eraser" "In our previous paper1 we pointed out that, strictly speak- ing, we are not detecting single photons of light but rather single photoelectrons liberated by the light impinging on the detector; this is still true in the present experiment." Tell us your "physics" education is from KZbin without telling us.

[@reidflemingworldstoughestm1394]

"Existinial dread" eh? Even though I occasionally heard the word clandestine, when I read it, which was fairly often starting from an early age, I read it as _candlestine._ It wasn't until I was about 26 that I realized the correct pronunciation, and that the word I had been hearing was the same one I was reading─despite also knowing they had the same meaning.

[@pstzz]

This caught my attention too. I'm so easily annoyed when I come across these misspellings and mispronunciations (particularly when apostrophes are involved). Oh well...

[@engineerahmed7248]

LIGHT DELAYED INTERFERENCE PROBABLE REASONS: 1st Light visible response faded had faded when u fired 2nd laser but light's invisible response (just like after switching off burner visible flame plate stays warm, but warmth is invisible) was lingering & caused interference pattern.

[@TheRealFastMarcus]

Fantastic Channel. Just discovered this gem and 51 minutes later I am properly befuddled! Thanks again!

[@deus_ex_machina_]

If you want to un-befuddle yourself, I recommend Sabine Hossenfelder’s video on the Delayed Choice Quantum Eraser.

[@jargolauda2584]

I find this being one of thousands of trash channels of which videos are just filled with stock video clips. Utter trash, waste of time. I'd move to Sabine Hossenfelder also, no stock video clips..

[@brynduffy]

I think the most profound thing about light and the speed of light is that it actually represents the speed of reality or you could call it the speed of causation. Once you understand what it actually is then you can understand that you can't go faster than it.

[@itsyourintelligence3445]

Maybe

[@tonyfelices]

16:43 “we are apparently all driven by probability, if you scale things down small enough” seems there may be a requirement for collective observation, particles observing each other, hinting at quantum consciousness

[@Dshork]

it reminded me of the book and TV series "His Dark Materials" where there is a substance/particle called "Dust" which has conciousness

[@graxxor]

1:30. “Exsistinial Dread”. One of those phrases that doesn’t exist but needs to…

[@malectric]

A notable thing I found when conducting research: it is impossible to isolate a single entity and measure it. Measurement is the essence of introducing at least one further variable into the mix, namely as a minimum, at least one electron, atom etc. And it has its own properties which end up in the mix/final result. Referring particularly to the final experiment, it seems clear to me that the "photon" is propagating as a wave and being detected as a particle i.e. manifesting its existence by interacting with a single atom in one of the two detectors. It would be rather telling if the second beam splitter was inserted _after_ the photon had passed the point where it was (to be) inserted. I do not believe that a photon has a mind of its own.

[@deadbeats4894]

Just like sound, there's no such thing as a particle of light.

[@deadbeats4894]

A ‘unit of light’ or photon is an Atomistic creation with no basis in reality. The intellectual defect that gave rise to this false concept comes from the observational nature of light along its central coaxial circuit which rarefies and compresses like manifesting and de-manifesting beads on a necklace where dielectric induction manifestations of the coaxial circuit of light occur relational to the frequency of the light in question. No such entity as a ‘light particle’ exists at all; this is the fantasy of mathematicians endless desire to quantize all of nature into discrete units to count and subdivide. The very term photon comes from the psychologist Leonard Troland (psychologist and occultist who studied telepathy and other fringe topics).

[@deadbeats4894]

I suggest YOU read sir Walter Russell on light for a start.

[@taylorfredrickson7750]

If you are interested in the Quantum Entanglement The Three Body Problem has a cool example of this. The aliens in the novel create computers the size of protons and entangle them with a counterpart, one stays with them, the other is on earth. Even though they are 4 light years away in the centauri system they can spy on Earth and communicate in real time.

[@alphavasson5387]

This is what quantum computers are trying to use in real life too!

[@rightaway2686]

This also reminds me of sacred geometry. We think its a wave but it could be also be part of a larger dynamic.

[@fratermunky4336]

OMG THE WAY YOU EXPLAIN THINGS. Bravo you're really good at teaching and you break things down simply. Subscribing now

[@deus_ex_machina_]

Astrum mostly focuses on space-based topics like telescopes, probes, rovers, planets and stars etc. If physics and cosmology are your thing, then might I recommend PBS Spacetime.

[@deadbeats4894]

I reccomend Theoria Apophasis for a proven, simplex answer. This video is atomistic garbage.

[@sleep_now...]

Observing is interference.

[@Evan-rj7kh]

Not incorrect!

[@SilenzioDiEsistenza]

more general: interrelation is interference. what we call observation, is simply a form of interrelationship between quantum states, which in a way affirm and deny each other. this creates contrast of particles. so while all things are related in their formation, they are also discrete. they are however never seperate from the quantum field and the probaility influences (however small) of all fenomena in the universe.

[@rudynathan8852]

Arent photons traveling from our eyes or sensors? Maybe this is inrereference?

[@hornwijaya5033]

Finally after many videos of trying to understand what kind of observation is "when observed".... this video clears it up with example and simple language. People just accepted that "when observed".... but I couldn't figure out the who or what observe and how..... Anyway, thanks for the video, could sleep well now. :)

[@SebHaarfagre]

Dude I was *JUST* thinking about lightning when you said the word "lightning" it was almost creepy. I've always been fascinated with how waves (in the ocean) and lightning works. Neurons as well but that is another story... I have OCPD and there's something extremely satisfying at how attentive I get to your narrating and these topics. Thank you Edit: I paused after writing this comment, and I come back and unpause after almost half an hour, and seconds after unpausing, you say "now might be a good time to pause and reflect" 😂😂 Alex, uh, I'm having a bit of an existential issue rn 😂

[@jeronimo1338]

Entangled? 😅

[@kennethhicks2113]

Great episode : ) The time double slit was performed recently with galaxies and millions of ly's distance/time and same results... as currently hypothesized by some scientists, photons travels millions of light years in the past.... Agree, we don't know what's going on.

[@Rudyard_Stripling]

Oh come on, you call it observing but in reality, you are checking the light with an instrument that changes the energy of the photon, it has nothing to do with actual observation like watching it from a human perspective.

[@kennethhicks2113]

Yep, one of the seemingly impossible problems to solve. And it may well be impossible for us. @@Rudyard_Stripling

[@mrcheese5383]

That’s what I thought at first

[@TheCaphits]

Light seems less strange when you realize photons don't really matter, you're just interested in the electromagnetic or whatever field. Photons are just leaves blowing in the wind, but the wind is what is really guiding the movement of the leaves.

[@crypton_8l87]

Right, but as he says in this video, increasing the speed of your wind (in the case of light) "doesn't" increase the speed of the leaves. It creates more leaves! That makes light completely different from wind.

[@andrewmueller8803]

In my opinion, when the first pulse was sent, it would be slower than the second pulse. The 2nd pulse drafts (less air resistant, similar to race cars) the first until it hits the first pulse. This might explain the wave like pattern and freq change. this is at the 26 min mark. great video. Plus one would think bouncing off of the mirror would slow them down a bit.

[@pedroalves2412]

Literally freezing light, and making it come to a complete stop Blew My Mind. But knowing it could regan the energy it lost... and continue the same path BLEW MY MIND!

[@Khunimurderer]

again

[@AlexeyElHayek]

If not faster, as well, which is so odd

[@JoeBigBoi]

Gave me the dreads when you pronounced existential as "existenial" hahaha

[@Reactionreacting]

If the fastest path is back in time we may not be able to perceive it consciously but it has an effect on us in some way. If light can travel back in time then we can possibly get an image of the future

[@whytchywooo]

This might explain dejavu... 🧐🤔

[@eliteextremophile8895]

Not sure what is implied in "if the fastest path is back in time..." but the flow of time is actually far more complicated than that. In the Charge, Parity, and Time reversal symmetry (CPT symmetry), if you were to reverse said things, the resulting system will behave exactly as it does now, so no change in causality. If you're talking more about the perception of time or direction of entropy, they're massively different thing. So reversing CPT symmetry wouldn't have any effect to us. Reversing entropy would mean that we couldn't possibly be observing anything since our biological organism (feelings, memories etc.) rely on the forward flow of time. It's very hard to say what would happen if universal constants would change (speed of causality etc.) or even reverse. Probably that would mess up the whole system and eradicate our existence in an instance.

[@themulticourse2460]

​@@whytchywooo restro casuality is proved wrong

[@Snoozelightable]

The theory of relativity says that a mass distorts space time. Is it possible that photons are “skipping” on top of this “space-time net” thus appearing as a wave?

[@FlydreamMedia]

So basically we dont know sh't?

[@ganglestank]

The more you know, the more you learn how little you actually know. In order to know the gaps in your knowledge you must fill some space

[@JVP_thephobic]

That is Until we know sh*t. Then the sh*t changes when we check. And finally, we're back to not knowing sh*t. Thus the cycle continues. 🙏🏾🙏🏾

[@ganglestank]

@@JVP_thephobic it only changes when we check because measuring requires the energy to interact with other particles. There is another level which EM exists on where the energy goes out in every direction and is divided infinitely. Since it goes out equally in every direction, but it still has to choose a path of least resistance, it will choose a random direction (no specific path requires less energy than the others) unless it is impossible to choose a specific direction like with entanglement. On our level of reality, the physical medium which we see the effects of EM energy through, that energy cannot be divided below a certain threshold. Thats why we see the particle, the lowest unit of measurement for that energy. Therefore, it is infinifely divided until the energy has to go somewhere, at which point it turns back into a particle and the ripple of infinitely divisible energy starts again until it his something that causes it to be indivisible below a certain level again (something being interacting with the physical world in any way). Much like the lightning bolt analogy, the energy explores every path until it finds one to collapse down. The EM field cannot be detected, but we can only measure the impacts it has on our reality. There are two layers of reality interacting here, and we have only half of the picture

[@tbghostlll1902]

Yup. That's about right.

[@magicbox9371]

I am knowing.

[@parpar8090]

You gotta be honest, Job 38:19-21 is a crazy prediction/statement: 19 “Where does light come from, and where does darkness go? 20 Can you take each to its home? Do you know how to get there? 21 But of course you know all this! For you were born before it was all created, and you are so very experienced! (NLV version btw) Where does darkness go? Or to be more clear, where does light not go? Something we don't 100% know yet.

[@endealles8169]

This means we need to observe our everyday lives as much as possible. Too many distractions now a days prevent us from having more control over our own outcomes or at least better understanding of how those outcomes came to be.

[@endealles8169]

Agree 100% @@karlwithak.

[@Cianan-vw1lb]

An interpretation that makes sense to me is that time stands still at the speed of light. From that one may infer from that a particle of light sees it's entire history as now. If you change the physical path that a beam takes, that presents as the particle of light having always seen it that way.

[@GemulChannel]

It's because of the optimization of this reality's renderer. When no one looks into the details, the optimizer renders light as waves, thus keeping the processing power to a minimum while maintaining the simulation. But once someone observes it in detail, the renderer begins tracking the light as individual particles, requiring more power but allowing for more elaborate details. Furthermore, this theory is supported by the fact that i made it all up just to sound smart. Have a good day.

[@circa_76er]

Indeed it sounds like that. Also time dilation suggests a similar concept, the more massive an object is the more time is required to compute its existence, thus time flows slower closer to planets for example, this is based on General Relativity. 😊

Of course you didn't make it up, it was already made up years ago

[@monkeseeaction21987]

I actually lean towards this explanation of reality, which is a macroscopic continuous simulation in a giant game engine run by a discrete processor. There is no fundamental reason why things should behave differently at large or small scale. Maybe the quantum behaviors and the behaviors of light we see are just artifacts of the inner-workings of the computer that simulates us. Just like if an intelligent creature in GTA v were to study the precise nature of the speed of a car, they will find that the car's speed increases in discrete packets or quantum, those packets being the least significant base of the variable that keeps track of a car's speed. Maybe particles and quantum of energy are just the least significant bases of variables that run this universe.

[@TXHEN1]

When I was in 4rth grade, I suddenly went from seeing and hearing normally to seeing crisscrossing multi colors and hearing a very deep humming for about 5 seconds straight. It wasn't everything in front of me but more like b4 my eyes, I even looked around and the same still image of those colors stayed the same so it was me not the world in front of me. The humming loud but I could still heard my classmates around me at about 30% volume compared to the humming. I was in shocked and quickly put my hands on my desk and about to start screaming when suddenly my sight and hearing was back to normal but believe it or not I heard a something being plugged in like you would hear a metal pin being plugged back to a metal socket at that same exact time. This was one of those things that now as a 41 year old is still vividly in my memory for being so dramatic. I have a high IQ btw 136, that's top 1% but not at genius level or anything like that. I am adding this because I don't want anyone thinking my hypothesis on this is from just a silly person with a rare freaky moment. I actually do a lot of thinking especially deep reasoning. I believe now, as in last year(Raised a Christian but left religion last year after educating myself so much.) that life as we know it is most likely a simulation but not as the typical theory that all of us are conceived in it but rather that we in a base reality have made this simulation and can willingly choose to have our consciousness but into the vessels we want to try being like a bird or a human but are mental abilities will also be limited by the brains of our vessels. I also don't believe that everything and one here is from base reality and some are real computer simulations(Think of the computer power that would take to make this simulation, Seamlessly interactions between us would not be hard) and things like evolution do exist here and serve a purpose and so do deceases and stuff like that. Put ultimately, We do get a choice to live in it if we want and ultimately when we die are pulled out to base reality. There is so much to why I have come to this conclusions but just throwing in my 2 cents and as U have gathered by know this perfectly explains what happened to me in 4th grade and what is happening with this all experiments and the Mandela Effect and all that. Again I have soo many thoughts and Ideas why this is what is most likely our real reality but no time too write about it all here.

[@austinroberson8]

lol that’s exactly what I was thinking. That’s the only thing that makes sense.

[@robdrialo444]

We are light are true self

[@Calaban619]

If I was a coder, and my job was to write the code of a made up programmed Universe, I would code the underlying physics this way. Light is complicated. every force interaction and observer having its own perspective. Much simpler to leave its code undefined until it needs to be. Much easier to just make it a consistent speed to all viewers in all perspectives in space, momentum, and time. Quite the clever bit of Universe coding to save computer resources. Certainly nobody in there would notice any of it...

[@darkswan80]

I'm afraid that the coder whose task was to program humans is in his boss's office right now....😬😬😬😆😆😆

[@Omniverse0]

You would code the underlying physics this way because you don't know of any other way to accomplish similar results with different parameters, but you're missing that these parameters only seem desirable because what you want them to accomplish is what you already have. The concept of life, as we generally define it, could be achievable under a conceivably infinite number of parameters, but you can't conceive of these possibilities because they are nearly impossible to under our current conditions of reality. Hard to figure out the answers to questions you don't know to ask.

[@dave7038]

In the (highly speculative) Wolfram Model the coder was even lazier than this, instead of putting in the effort to decide what would be efficient, they just have the computer do all of the options and let the details work themselves out. Evidently universe creators are omni-lazy and universe computers are cheap to run :D

[@marktwain5232]

Wow! This was just great! Thank you so much. Greatly appreciated!

[@TimeTravelAventure]

Agreed!

[@belgianskunk]

After this i'm sure we're in a simulation :) Love the video, keep up the good work!

[@aserta]

More like we have no clue about a certain parameter that exists within our equations, it fulfills all the requirements, but in certain other formats, it behaves completely different. Kinda like having 1 + 1 = 2, but one of the two 1 is in fact a 2 that's seen from the side, so the real math is 1 + 2 = 3.

[@SailorRob]

@@aserta, the answer is a little anti-climactic but still interesting. Time doesn't exist for light. From the photon's point of view, it sees the entire journey it takes at the same moment. The "delayed choice" is only from our point of view.

[@pyrrian1527]

Ye the way light behaves very much sounds like how we would do lazy optimisation in computer science. Which is a bit disturbing.

[@micfleet5539]

Didn't it just explain not to be sure? 😃 ..

[@Mahlak_Mriuani_Anatman]

​@@pyrrian1527explain

[@ramuk1933]

Officer: "Do you know how fast you were going?" Electron: "Just a moment, let me check..." Electron: "3,141Km/Hr." Officer: "You just made that up, didn't you." Electron: "So?" Officer: ...

[@scarynapkins]

This is the greatest joke of all time. Did you make it up?

[@johannkolodzey]

I would have said "3,141.592653589793238462643 Km/hr", but that would be a thousand times irrational.

[@rgallitan]

An officer pulls Werner Heisenberg over on the freeway... Officer: Sir, do you have any idea how fast you were going? Heisenberg: No, but I can tell you exactly where I am!

[@71kimg]

@@johannkolodzey that would be a lie since a electron it-self doesn’t have any speed - that speed is us measuring its speed - while it self have no such thing.

[@BillGreenAZ]

@@rgallitan The officer looks at him confused and says "you were going 108 miles per hour!" Heisenberg throws his arms up and cries, "Great! Now I'm lost!"

[@annebananne6835]

I tend to have this wierd feeling when watching these kind of mind boggling videos: I kinda understand somehow, I get the analogies and sometimes it all makes sense on a very abstract level and I feel like having a little glimpse into the reality of all that exists- but really understanding what it actually means? No chance. And it freaking annoys me that my / the human brain seems not to be made to understand.

[@SebHaarfagre]

Haha... welcome to the world of neurology, equally confusing :) We are as real as we consider ourselves, it's all subjective really and it doesn't matter. But if you had to pinpoint what part of you is "you" it is a "hivemind" of neurons and their electrical impulse / interactions. It's fascinating how DNA and parts of the immune system and proteins etc. "know what to do" and some can even "improvise" and it's equally mind boggling how neurons "know what to do". Alone they are nothing. But they act like ... I don't know And together they have meaning

[@nickcunningham6344]

@@SebHaarfagre I remember a vsauce mindfield episode where essentially they got a bunch of people and had them interact with each other as neurons in a brain would. It's been a while since I've seen that video, but I believe they were tryna simulate how the brain sees images? But anyway, it got me thinking, if you were to gather enough humans to act as individual neurons and had them interact with each other in such a way as to simulate an entire human brain (I know, there aren't even enough humans in the world to do this, but bear with me), would the result be a brain that could actually think for itself and had its own consciousness? Experience its own emotions? Form its own memories? Its own opinions and ideologies? Always found it an interesting idea.

[@kparker2430]

@@nickcunningham6344 to expand on this notion; we have such an arrangement of humans viz our population of 8.5 Bn or so. They may not perceive of their functions any more than gut flora and fauna going about their self serving interests perceive that they are the foundation of a being much greater. Surely humans are such micro cogs in a higher entities function - let me introduce a nice name for this Gaia, mind/spirit of the planet Earth. Sounds whoo whoo doesn't it?, yet it is consistent with the pattern that the higher the entity is on the food chain, the more complex it is. I figure humans comprise some of the basic neuron clusters that make up the Earth life form and these might be analogous to cancer, or the cause of Gaia's mental illness.

[@Thisandthat8908]

i'm glad it will blow my mind and not "shock" or "break" me. the great content deserves betetr.

[@HighPhilosophy]

The fundamental question raised in the first experiment is, "How do the particles know they are being observed or not?"

[@d4vidd]

That is very well settled science, observing makes the photon interact with the outside world which collapses the probability wave function. It is not the observation itself, it is the interaction that causes the photon to take a definite path.

[@seek3031]

It sure is. While there may be useful mathematical equations regarding the phenomenon that seem to have predictive value they're not descriptive to the layman. What's the difference between observation and interaction?

[@HighPhilosophy]

@@d4vidd but how is it aware it's been interacted with?

[@GabeHiggins]

It doesn't "know", it's reacting to other photons hitting hit when you observe it. When you're looking at something, it requires photons being sent and received. If nothing is being sent, you don't "see" it. But if you do see it, the photons are interacting with each other.

[@HighPhilosophy]

@@GabeHiggins the how would a single photon be acted upon by itself.

[@johnnysparkleface3096]

Water is also a surprisingly weird thing. That's 2 examples of things we thought were very simple, but it turns out they're not. We should learn from this that maybe DNA and life itself are beyond humanity's ability to comprehend, tinkering with it will always lead to unintended consequences.

[@GokuIRL]

The Bible has taught that God is light for thousands of years, finally scientists are catching up to the Bible. If you have an open mind, check out answers in genesis they have a lot of scientists who believe this too. Thousands actually.

[@artOVtrolling]

In game development, there is an optimization trick where you program the engine to draw only what the player is looking at/able to see in order to save memory. The way light behaves differently when viewed kind of alludes to simulation theory.

[@circa_76er]

Interesting. While trying to explain this concept to my 16 year old, it seemed like his intuition immediately pointed to the fact that it's almost as if the universe had a limited amount of "computational" capacity and it does not materialize reality until absolutely needed.

[@artOVtrolling]

@@circa_76er yeah, exactly. It’s super weird. You’d have to assume that - if this were a simulation - rendering graphics this crisp and defined would definitely require efficient use of memory. It’s a fun thought experiment. Im not really sold on the simulation theory but it’s a fun idea to play around with. It kinda makes the whole “if a tree falls in the forest and there’s no one there to observe it, does it make a sound?” thing moot. If there is no one there to observe it, a tree isn’t even standing in the forest.

[@ClaudeBot-f5f]

29:04 wow this is awesome thank you

[@IshantMahajan06]

As an indian highschooler aiming for JEE this video has given me more insight into my modern physics syllabus than any other teacher THANKS A LOT

[@rishi5307]

'As an indian highschooler aiming for JEE' 🤓🤓🤓🤓🤓🤓🤓🤓🤓🤓

[@IshantMahajan06]

@@rishi5307 its a big deal over here in india

[@anthony212459]

I think one day we're gonna find out that the universe is mind blowingly different than we could have ever imagined.

[@anthony212459]

@M-uj2tr Humans still have an animal mentality. Were monkeys with facy spears. We will need time to get out of the way of our own hubris.

[@mrcheese5383]

I mean that’s kind of what happened when we got the results of the double slit

[@DustinWegner]

Would be interesting to see the results of the photon double slit/ time experiment conducted at sea level on earth and then also in space, further out of earths gravity well. Deeper gravity wells having deeper impacts on space-time.

[@ChronoTango]

Light seems very similar to sound in a number of ways, but I think it’s overlooked that light is released by a shift in the energy of matter. Light is a change in energy potential the same way sound is a change in pressure. Difference is, light seems to propagate through the fabric of space rather than requiring the presence of matter to travel. Fascinating stuff.

[@bobm4378]

@ChronoTango: look up 'higgs field' that is 'matter' light travels through??? now consider a rope tied very loosely at both ends.. now 'twitch' one end, you will see a 'wave' travel down the rope! it **looks** like the wave is traveling along the rope, but you know no part of the rope has moved along... :)

[@blakespower]

just gonna let these play no matter if the adverts are 54 minutes long

[@astrumspace]

Please feel free to press the skip ads button, especially if it's 54 mins!!

[@Xeegar]

Good content again, and this one is surprisingly well done. Thanks!

[@birchtree2274]

I don't know what's so odd about light acting differently when you aren't looking at it. I often behave differently when no one is looking at me 😂

[@andrewpotapenkoff7723]

Because you are not certain, what you are.

[@paulatreides0777]

Stop the porn 😂

[@birchtree2274]

@@paulatreides0777 ahh, not porn (usually). More like "interesting chemistry" lol