Our Antimatter, Mirrored, Time-Reversed Universe

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The foundations of quantum theory rests on its symmetries. For example, it should be impossible to distinguish our universe from one that is that is the perfect mirror opposite in charge, handedness, and the direction of time. But one by one these symmetries were found to be broken, threatening to break all of physics along with them.
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Previous Episode: Why String Theory Is Wrong
• Why String Theory is W...
Hosted by Matt O'Dowd
Written by Graeme Gossel & Matt O'Dowd
Graphics by Luke Maroldi
Assistant Editing and Sound Design by Linda Huang
In his famous lectures on physics, Richard Feynman talks about what it means to expect the universe to be identical in the mirror. For it to be parity-symmetric. He invites us to imagine a clock in a mirror reflection - numbers are backwards, components are all flipped left to right, and it ticks counterclockwise. And then we imagine building that mirror clock in reality. Everything is constructed as though reflected. Numbers get painted backwards. Every screw with right-handed thread or right-spiraling coil is replaced with a left-handed version. Our intuition tells us that the mirror clock should tick in exactly the same way, except counter-clockwise. Our intuition would be wrong.
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سلطان الخليفي

[@DavidKTasso]

Do not fear the day you are mistaken for a medical doctor on a plane. Fear the day when they ask for a doctor on a plane and mean an astrophysicist.

[@Silverwind87]

"I have a doctorate in quantum physics. I can tell you what's wrong with him, or his position, but not both."

[@thenovicenovelist]

If a plane needs an astrophysicist then the plane has gone way too high.

[@MarloTheBlueberry]

The pilot was a bit high..

[@ryanhegseth8720]

Well that doesn’t make a lot of sense cause astrophysics is nonsense and therefore completely useless. oh I get it, that’s the whole point. Astrophysics not only has both to do with us here on earth, it’s actually totally wrong about the stars as well. It’s impossible for stars to be made of nothing but a gasious plasma. Besides the visual evidence of seismic surface waves and solid body rotation, gravitational collapse wouldn’t happen to a gas alone. Furthermore, it violates thermodynamics. “No system can do work upon itself by therefore raising its own temperature. Also for the fusion reaction to occur the temperature would have to be extensive, those violate the 2nd and 0th laws. For a great channel explaining all parts of this topic, check out Dr. Pierre, Marie Robitaille’s channel “Sky scholar”.

[@Gabu_]

@@ryanhegseth8720 Get a therapist

[@Kazokano]

"Australia, which as you know is the CPT inverted version of Canada." As a Canadian, I found that to be absolutely hilarious.

[@muaral-rasheed2565]

This killed me hahahahaha

[@fuuryuuSKK]

you mean, as a CPT inverted Australian?

[@Junebug89]

I think that means any Australian will have to be sitting there stone-faced, right?

[@RelatedNameHere]

@@Junebug89 no, theyd be sitting there covered in snow, drinking a tim hortons coffee and laughing because you cant tell the difference

[@CrownedMeadow]

As an American, I did too.😋

[@regulareric8759]

it never gets old how you slip in “space-time” at the end of every episode

[@agiar2000]

13:55 If Australia is the CPT inverted version of Canada, does that mean that, in 90 years, Australia will pass a parliamentary act to rejoin the British Empire?

[@EllaBellaMozzarella]

And in 118 years Canada will rejoin, which means we'll be in a loop of inter-continental brexits

[@fluffigverbimmelt]

That'd just be PT-inverted. It'd probably have to rejoin the Anti-British Empire or something like that

[@storyspren]

When a CP-flipped universe doesn't match the normal universe after all. *It's rewind time.*

[@Verlisify]

I miss when I could understand this series.

[@nohbdy1122]

Lol of course Verlisify can't understand

[@pcuimac]

Verlisify Nobody really can. You only can learn to do the calculus and derive solutions to equations. The interpretation is the hard thing and leads to late nights and dead brain cells. Have to refill my glas now. Bye!

[@johntate6537]

Don't, in a time-reversed reality you will soon understand it again.

[@imaginaryuniverse632]

"The problem with physicist today is that they have wandered off and got lost in the equations" Tesla said a hundred years ago. It seems to me that the best way to discover the fundamental design of the Universe is to study it's blue print which appears to be the Flower of Life. Check out the N. Pole of Saturn for a clue as to how to read it. Time ticks as the hexagon evolves smaller it's sides and angles carved out by vortices of energy like whirlpools in the ocean. Our cells pull electrons from protons to create a pressure gradient in an ocean that cavitates with the beat of the heart. It seems that this electron transfer chain looks a lot like the internal structure of the Great Pyramid where the free standing granite slabs above the king's chamber could create an attraction of electrons by resonating with the cavitation of the water filled pyramid perpetuated with the closing of a one way valve in the subterranean chamber like the cavatation created by the beat of our heart that creates a Sonic wave. Tesla invented a one way valve and built a tower that connected to the ground water on Long island that supposedly shot electricity through the air. I've only connected these analogies recently but I'm finding that this analogy is repeated in a great many places. My assertions can be easily checked out and I'm sure that any who do so with an open mind will quickly find their own assertions that few others have ever seen because they are backtracking from what is observed in the present instead of studying the basis for all that exists which is the Flower of Life. It's derivative dropped from Times Square. It's the water droplet and the ocean.

[@sgbench]

There was a lot of subatomic particle physics lingo in this one

[@ripwolfe]

As a US American who loves both Australia and Canada, "Australia is the CPT inverted version of Canada" is one of the damn funniest geographically aligned quantum physics science jokes I've heard in a long time. Ever, actually.

[@theotheremily]

@WheelieBinMonster He's not just an American, he's a US American from America

[@JamesTechYou]

You must have missed that category on Jeopardy

[@ripwolfe]

@WheelieBinMonster VERY easily amused.

[@CrowMagnum]

CPT inverted Canada is New Zealand, not Australia

[@mosquitobight]

Canada and Australia are the papa and mama bear from Goldilocks

[@Ice_Karma]

Hah, your comment at the end... My mother was a paramedic, and she told me several times about people coming up to her and her coworker at an emergency scene and saying, "I'm a doctor, can I help?!" She learned very quickly to ask, "Doctor of what?" The best response she reported was "Theology!" As far as your concern goes, and as far as I understand things, they generally ask over the PA for a _medical_ doctor, rather than looking for people with the title "Dr." and approaching them individually-for this very reason. And remember, in some cultures it's _normal_ to expect to be addressed by your seniormost _academic_ title.

[@noahway13]

I'd rather have a witch doctor care for me than a Doctor of Theology.

[@ferretappreciator]

@@noahway13 what's the difference??

[@daleowens7695]

@@ferretappreciator Pretty sure an atheist could be a doctor of theology. I could see how someone could be fascinated by the history of religion and how it's changed through time and culture and not buy any of it from a spiritual perspective. Your comment was funny btw, I lol'd.

[@thenovicenovelist]

​@@daleowens7695I remember watching a show years ago about a woman who was an atheist but she got her degree in theology and was studying ancient texts because even though she wasn't a Christian she said she majored in it because Christianity has such a huge impact on our everyday lives regardless of religion or spiritual practice.

[@EvilSnips]

Wooow last time I was this early, the 4 fundamental forces hadn't separated yet.

[@Osama-Bon-Jovi-01]

Ha

[@jimc.goodfellas226]

I see what you did there. .

[@Pauly421]

It's strange thinking that they were once melted together somehow

[@krazytaxicabbie]

Bang!

[@ChevisPreston]

Paul McDonagh it’s not strange to think about that; it IS strange to think about such an unfathomable amount of energy in such a minuscule amount of space at a singular origin. The birth of the universe must have been... well... incomprehensible

[@paxdriver]

This script must be up there in the hardest ones to write. Thanks for all the hard work guys, love the show

[@CrownedMeadow]

I was thinking the same thing, and realizing how much more respect I have for Matt for his ability to make it seem like he’s just casually using his own words to talk to us about it. 🤷‍♀️

[@alive2583]

Unfortunately there are no words to prove this theory just topological evidence that is rare to come by. I would only trust one who utilizes faster than light particles. I’m not trusting the word of a human in this universe

[@paxdriver]

@@alive2583 Belief isn't required, thankfully. It's just interesting to look / think about it to see if it awards us greater insights for having contemplated it.

[@alive2583]

@@paxdriver What rewards can gain from this process? From empirical research, what have you gathered?

[@paxdriver]

@@alive2583 not my field of research so I'm not the one to ask. I am working on optimisations in weight space for neural networks based on physics equations hunting for ones that work, so my work is empirical and applied but this one just happened to not be helpful to me yet. If you have the notion that things must be figured out immediately to be proven useful then you've probably not investigated the history of applied maths. It's very common things like this prove useful decades or centuries later.

[@krassos]

Came for the physics concepts that were well and truly over my head and stayed for the man's pleasant voice.

[@axolotl5327]

This series does a great job of making clear that getting even the faintest, foggiest notion of what is going on would require several orders of magnitude more effort than I'm prepared to give it. (And of course there's no reason to believe that such effort would be sufficient.)

[@sidshetye]

Downvoters are simply testing parity inversion symmetry on KZbin

[@fmaz1952]

Nah, I just don't understand the explanation.

[@kaiceecrane3884]

@@fmaz1952 So because you aren't smart enough to understand you disliked it?

[@LuisAldamiz]

@@kaiceecrane3884 - It's debatable but one could argue that PBS Space-Time was not good enough to explain the issue in terms available for the average person. Some people will like because oh-well-they-tried, others will dislike because trying is not good enough. There must be diversity.

[@BlackCrossCrusader]

So our likes are dislikes in the mirror universe? Far out, man.

[@cherrydragon3120]

They live in an opposite universe. For them a dislike is equal to an like. So there are no dislikes :)

[@adamkey1934]

In the antimatter, mirrored universe Matt has no beard and isn't evil.

[@LuisAldamiz]

Nah, he's just Canadian.

[@srinitaaigaura]

Beards are toxic masculinity! Says Gillette. Amazing how you can have smart science channels like this while the rest of the world is busy in that sort of stuff and watching regular brain killing TV.

[@Wave1dave]

@@srinitaaigaura Be glad for that diversity. Each to their own. But yeah, it is kinda amazing...

[@Merennulli]

Bearded Spock was the one who saved normal Kirk, Scotty, McCoy and Uhura. He then went on to take over the empire and turn it peaceful. Beards don't make you evil, they make you effective. :P

[@jojolafrite90]

It's not amazing. Diversity is good, but too much diversity of common knowledge about reality can't be good. It means we don't evolve fast enough because obscurantism and ignorance is too widespread for an interconnected world.

[@marks6663]

Notice how they use star trek sound effects? 6:25 - computer sounds (TOS) 7:15 - phasers (TOS) 7:25 - computer sounds (TNG)

[@Rose_Harmonic]

Damn you and your space time ending without me even noticing! I had to rewind to see what you did there. 13:49

[@NewMessage]

YT needs a 'watch in reverse' button.

[@thenexxuz]

and why not inverted too?

[@EebstertheGreat]

Time-reversed, mirrored, and with everyone driving on the wrong side of the street.

[@thenexxuz]

@@EebstertheGreat you mean like in the UK?

[@pcuimac]

New Message That's NOT what CPT means.

[@thenexxuz]

@@Kelan-pn6em I think that the US and the UK are CPT translations of one another.

[@butHomeisNowhere___]

Clicked so fast that I broke Causality

[@jarredeagley1748]

WHAT HAVE YOU DONE

[@ryantab]

Clicked so fast that i broke my penis

[@demandred1957]

@@ryantab lolz!

[@ryantab]

@@demandred1957 ik im funny, wanna give me money for how funny i am

[@sulejmanavdic8516]

@@ryantab This kid doesnt know what is he talking...

[@4pharaoh]

Love your work, You don't condescend and not a single hint of pompousness. A combination in science videos that is more rare than antimatter its self.

[@JohnLee-bf2ux]

That’s the best graphical and intuitive explanation of CPT symmetry which couldn’t be understood by reading alone.

[@evaristegalois6282]

PBS Spacetime: *“Our antimatter, mirrored, time-reverses universe”* Everyone else: *“Have you heard of the Instagram Egg? It’s pretty awesome”*

[@TheColemancreek]

I have no idea what this object is. Does it break CPT symmetry if you drop it unto the floor?

[@sgbench]

To be fair, the egg is awesome

[@sdfkjgh]

I wanna see what happens when HowToBasic gets ahold of it...

[@LuisAldamiz]

@@TheColemancreek - It does: you cannot hope for the atoms to move backwards in time at all, much less rebuild an unbroken egg if they'd ever did, you need a an actual chicken for that, and that's quite an inconvenience for theoretical physicists. Farmers are OK though.

[@Soupy_loopy]

I prefer real eggs

[@spooderkat8442]

The sound suddenly started to sound weird at 16:40

[@alx12345]

Too much mindfuck causing a disturbance around his present universe

[@macronencer]

My (amateur) assumption is that in a MWI multiverse, time reversal would create new universes in the same way as in a non-time-reversed multiverse. So that would mean that not only is the universe splitting all the time, it's also combining all the time, from numerous possible pasts. I have no idea whether this idea holds water, but it's intriguing, partly because it seems to imply that time travel would be... somewhat problematic. I've even gone so far as to draw diagrams for what would happen to a hapless time traveller attempting a very simple trip into the past to alter something (I'm a writer). Things quickly got WAY out of control and I ended up with all sorts of duplicated people and confused onlookers and imbalances. I've abandoned the idea for now as I couldn't see a way to force it to create a coherent storyline :)

[@abstractrussian5562]

Perfect combination of theory, music and ending. The art.

[@jvcscasio]

My barber had a mirrored clock than when reflected on the front mirror showed the time like a normal clock

[@SquirrelASMR]

If time was in reverse... that means my mouth will give birth to thousands of animals

[@CosmicCleric]

Reminds me of a Red Dwarf episode. en.m.wikipedia.org/wiki/Backwards_(Red_Dwarf)

[@infidel1993]

Hear that? It’s the sound of offended vegans running backwards.

[@xxportalxx.]

@@Gamebuster1990 pretty dope, predators turn into animal production systems that run on poop, which itself would be produced by massive bacteria and insect communities coming together and melting! Ha

[@Muykle]

Getting sodomised by poop to pop out chunks of plants and animals, then have those plants and animals assembled would be normal in that universe.

[@pupnoomann7866]

@@infidel1993 Hear that? It's the sound of a meateater preemptively defending his lifelong immorality! :) Shit seems to be T-reversed after all. :D

[@coopergates9680]

That "Space time" ending though.

[@Procyon50]

@Cosmic Rift There was! "Charge... Space... Time. *Cheeky smile*"

[@ddmarsh21]

Tricky one

[@coopergates9680]

@Cosmic Rift "Space time" is always before tributes/sponsors, it's the end of the scientific content of the video.

[@stylis666]

@Cosmic Rift It sort of was. The rest was later added b-roll from a mirrored universe where the light and sound guy switched parity, with disastrous consequences I might add.

[@kodys_corolla]

ΩThere are parallel world. There are so many perhaps an infinite number of them. They are set up in a grid manor. If you were to map them. There are alpha worlds such as earth and omega such as to be the end time where everything is far more technologically advanced and much farther along of development has been made on the planet where the parallel world is. Jesus called them the alpha and omega beginning and end. Omega by definition means the final development. These are heaven like worlds where they archived eternal life though advances and medical advances to stop dying. They are very much a paradise compared to our earth as it is now. The worlds stay parallel though a process I call 2015 witch is where one world merges many in from a main world. Then they all become the same. The master world as I call it or main world makes every other world parallel to it. So our world becomes there's, the master world. It is probably ran by machine and spies from a more advanced omega planet. I call it 2015 because I believe this process took place in 2015 in October or November of that year. As I remember seeing visions of this other person who was myself in another world at least 5 times while I was in jail in 2015. from October some time to January 5th 2016. Witch was the last time I seen one of the visions. This person shares all my same markings and looks and is like a twin of myself. Your parallel person is like a twin of yourself. And all of the items from the master world and when 2015 happens then becomes the items in this world, your items. They duplicate and transfer to here as I have seen this happen and take place right in front of my eyes. His belongings became mine. You can also be born by 2015 as I became him. I believe spies from another omega more developed planet initiate this to happen to our worlds. I herd them speak before inside my mind at multiple times in my life. I believe they use a life controlling machine to do this. Maybe all of life is controlled by machines. We are being recorded by these machine through our thoughts eyes deeds and ideas. We are all hooked to something in the mind and possibly in the body. Everything we do is being recorded though our eyes and thought. That's sorta how 2015 works because you are hooked to something and are also hooked to your parallel self. We are all being watched and recorded. I call this thing the machine. It filters things we do and think in life. As it is in control of life on earth and keeps things parallel and I believe this machine can allow certain events to take place on Earth. Basically we have something hooked to our brains and it control's all of life. It is a very evil machine. If you needed to meet someone or get a job ect. It can do such things but also is evil. It is also is as if mind control but is self automated and possibly controlled by spy people of these heavenly omega planets as well. Who can potentially alter it. But it is attached to the mind. I believe there could be other versions of earth where they have machines to view worlds and maybe even take action with these machines to even teleport travel to other worlds to go to new and different worlds. There are even earths without humans on them. Just like vegetation earths without human life. And the time is similar to ours. Time I believe is important because it is a factor to a parallel world. 2015 doesn't leave this galaxy. I believe 2015 could happen every so often just as solar eclipses do. Omega worlds may have no water. I believe the future of earth will have no water as to make room for as many humans to live here as possible. Water takes up a lot of space and if removed we will have a lot more room for a larger population witch is why I believe they remove the water. They use medications to live forever. They do not die by nature as we do today. The medical advances are so great they cannot die. So population as you can imagine becomes very very large! I believe they will have to do something to stop breeding. As some kind of mandated birth control. They are probably larger in size to us. Weight and height. I believe there body's to have more muscle definition. And are probably stronger. I believe they will not eat or drink but for pleasure they don't require food and water as we do. I believe they attach things to there body's. Devices such as our cellphones and apple watches they have devices hooked to them all the time as we do. They talk telepathically. You know how we have the iphone? There's is the mind phone. They can read minds of peoples of other worlds. As that is a desired way for them to communicate. They do not need sleep as there is no night there they are awake all the time. They have no need for the sun. They can rest but don't require it. and they can read minds they are so technologically advanced. even people from other planets. They also control the climate and temperature. Climate and temperature will be different then our current planet and life. They are so technologically advanced they can spy and see the parallel other worlds as well as different worlds past and present. They in omega earth will speak a similar and same languages. There is also parallel planets down a “eternal chain”. And when you die you travel down this eternal chain of planets. Witch are HIGHLY similar to our current earth time is also important and perhaps down this eternal chain they are similar to us in time. They can also travel to other worlds as well. Many people come to alpha earth because there are so many parallel earths that you are likely to come here with an infinite number of them. But probably majority will go to a omega planet as there population could be in the high to low trillions for a planet similar to this one and planets like it. And what if they increased the planets size? They can meet there parallel self's and there family and friends. Even study other worlds down this parallel chain witch will all be advancing at similar times and rates. They can even see and meet there past family members or friends. They can even see where they will live in the future like if they come to alpha or omega earth or other places like it. The worlds I believe will be wiped out so god can start a new and that's potentially how some get to alpha earth. But they can see themselves here as to look into there lives into the future. So I could be watching myself write this right now. Or where I will even be in the next life who my family will be where I will live what I will do for a living and such. This ability to see into someone’s life is there Facebook. Spying is there Facebook. They want to know what there family members and friends are up to. They have no paper money. Money will be attached to the persons hand at some point. They have no crime or jail. No or few wars with physical combat. Its a more perfect place. With no disease or suffering. There will be no wild animals. They no longer use electricity but new power sources. I have dreams and visions of this place. I know its real. Parallel worlds advance futuristic heaven like worlds eternal life. We will all be going to this heavenly omega one day Ω kzbin.info/www/bejne/oovYmpWCrqh6d5I thanks for reading

[@Only1INDRAJIT]

Really quality video and engaging stuff.. Please don't ever stop making these... make some on The origin of Arrow of Time stuffs and its relation to the entropy. And also don't forget to make videos on black hole firewall paradox and resolution to the information paradox etc. Keep the Amazing work up guys

[@1stupidfatginger]

MY BRAIN HURTS AND I LOVE IT!!!

[@LuisAldamiz]

Your automated diagnosis: intelectualoid masoschism. Insert coin for remedy advise. Else take an aspirin.

[@factsheet4930]

The mic was kind of off towards the end :/

[@EMan32x]

Sounds like the audio was clipping, they probably had to 'rescue' some bad audio with a filter in post.

[@Ceelvain]

Main mic probably didn't work and they used camera's internal mic as a backup.

[@inertia186]

At first, I thought it was a joke to illustrate different energy scales.

[@BIGV1N]

It sounds like the mic gain is just a bit to hot. Would have sounded great if Matt was a guitar!

[@TheCimbrianBull]

@@BIGV1N Well, he did use to play in a garage rock band in his teen years. 😎

[@gabrielnetto4565]

Sometimes after watching the episodes, all i wanted was to continue listening to the background songs of spacetime videos

[@noteing]

I love this guy though he just gives me a lot of things to think about and breaks down the math for me so that I leave the videos wiser than before.

[@MrRolnicek]

On the connection between quantum mechanics and entropy: I'm with Sean Caroll on this one ... I think it's a simple matter of "many worlds" (and his justification for many worlds will make you scoff at any other interpretation). When an interaction happens, the quantum states split according to the equations (this we know) and of course YOU happen to be in a RANDOM one of those resulting wave functions (worlds). This NATURALLY brings entropy because it's more likely for you to end up in a world with higher entropy by definition.

[@marcushendriksen8415]

I could be mistaken, but wouldn't that require that there be a wildly non-uniform distribution of entropy among these wavefunctions? Entropy being what it is, I find this hard to imagine.

[@MrRolnicek]

@@marcushendriksen8415 I think it would but I don't see how it can be avoided. Take Schrödingers cat in a box but replace the cat by a valve that sits between a vacuum and a chamber full of gas. It will end up both opened and closed and the opened one will have a lot higher entropy. What is there in the physics that could prevent this uneven entropy distribution?

[@MrRolnicek]

@Trolltician what am I misunderstanding? Please enlighten me. I don't think it's conjecture either it just naturally follows if you consider the universe as a wave function (just like you would any other system, which is the basis of the many worlds interpretation) and consider yourself a part of it.

[@shannonm.townsend1232]

@@MrRolnicek u may b right but to say " .. it just naturally follows" is akin to conjecture.

[@MrRolnicek]

@@shannonm.townsend1232 What i mean is if the Schrodinger equations ARE applicable to the universe as a whole then it HAS to be like this OR the equations are wrong. That's how naturally it follows ... as far as I understand it.

[@Clem-travel]

The Time-Reversed Universe according to Janus model The theory describes two sheets or parallel universes in CPT-symmetry interacting through gravity, both originating from the same initial singularity. In Janus model, four species of matter coexist: 1- positive mass matter (baryonic matter). Baryonic matter refers to all matter composed of elementary particles called baryons. In practice, this corresponds to protons, neutrons, their constituents (bosons, quarks), to which leptons are implicitly added (such as electrons and neutrinos) and which compose atoms and molecules and all directly visible structures in the observable universe (stars, galaxies, clusters of galaxies, etc.). 2- positive mass antimatter (C-symmetry with respect to the first specie). This is the antimatter according to Dirac definition which is not very abundant compared to the first type. C-symmetry reverses not only the sign of the electrical charge but also the other quantum charges qi including the baryonic number, but not the spin. ζ-symmetry is the translation into symplectic geometry of this C-symmetry between matter and Dirac's antimatter. ζ-symmetry, in the 5-dimensional evolution space used in the Janus model, causes symmetry C (called q-symmetry in Janus model) in the space of the moment. Together with positive energy photons, these first two species are the components of the universe known until now: it is the first sheet of the universe (a.k.a. the positive sector). The 4 species of matter in the positive and negative sectors according to the Janus model. 3- the negative mass material (CPT-symmetry with respect to the first specie, with an anti-linear and anti-unit operator T ), which is not very abundant with respect to the fourth specie. CPT-symmetry simultaneously reverses quantum charges, parity (the spatial image seen in a mirror) and time. 4- Negative mass antimatter (PT-symmetry with respect to the first specie, with a linear and unitary operator T ). Using symplectic geometry, the Janus model demonstrates that this PT-symmetry is also a ζ-symmetry and a q-symmetry which automatically go together, so the quantum charges are also reversed. The fourth specie, the so-called « Feynman antimatter », is the primordial antimatter

[@jojolafrite90]

It does make sense, doesn't it? Ever hear of the Ummite "affair" or whatever how anyone wants to call it? Jean-Pierre Petit took the idea from there and from the guy who made the Tsar bomb in Russia's work (Sakharov probably read the same letters attributed to the said "affair"). But, mostly, it's JP Petit's work, now.

[@TheCopelandr]

:o I got mentioned!!! And he said I "brilliantly noted" something!!! You guys this made my night I am so happy rn

[@cooking_innovations]

I never seen anyone on u tube being so technical,, keep the good work,, 👌,👍

[@Stephen-T-Clark]

"I'm sorry, I can't help you, my doctorate is purely in awesomeness..."

[@kodys_corolla]

ΩThere are parallel world. There are so many perhaps an infinite number of them. They are set up in a grid manor. If you were to map them. There are alpha worlds such as earth and omega such as to be the end time where everything is far more technologically advanced and much farther along of development has been made on the planet where the parallel world is. Jesus called them the alpha and omega beginning and end. Omega by definition means the final development. These are heaven like worlds where they archived eternal life though advances and medical advances to stop dying. They are very much a paradise compared to our earth as it is now. The worlds stay parallel though a process I call 2015 witch is where one world merges many in from a main world. Then they all become the same. The master world as I call it or main world makes every other world parallel to it. So our world becomes there's, the master world. It is probably ran by machine and spies from a more advanced omega planet. I call it 2015 because I believe this process took place in 2015 in October or November of that year. As I remember seeing visions of this other person who was myself in another world at least 5 times while I was in jail in 2015. from October some time to January 5th 2016. Witch was the last time I seen one of the visions. This person shares all my same markings and looks and is like a twin of myself. Your parallel person is like a twin of yourself. And all of the items from the master world and when 2015 happens then becomes the items in this world, your items. They duplicate and transfer to here as I have seen this happen and take place right in front of my eyes. His belongings became mine. You can also be born by 2015 as I became him. I believe spies from another omega more developed planet initiate this to happen to our worlds. I herd them speak before inside my mind at multiple times in my life. I believe they use a life controlling machine to do this. Maybe all of life is controlled by machines. We are being recorded by these machine through our thoughts eyes deeds and ideas. We are all hooked to something in the mind and possibly in the body. Everything we do is being recorded though our eyes and thought. That's sorta how 2015 works because you are hooked to something and are also hooked to your parallel self. We are all being watched and recorded. I call this thing the machine. It filters things we do and think in life. As it is in control of life on earth and keeps things parallel and I believe this machine can allow certain events to take place on Earth. Basically we have something hooked to our brains and it control's all of life. It is a very evil machine. If you needed to meet someone or get a job ect. It can do such things but also is evil. It is also is as if mind control but is self automated and possibly controlled by spy people of these heavenly omega planets as well. Who can potentially alter it. But it is attached to the mind. I believe there could be other versions of earth where they have machines to view worlds and maybe even take action with these machines to even teleport travel to other worlds to go to new and different worlds. There are even earths without humans on them. Just like vegetation earths without human life. And the time is similar to ours. Time I believe is important because it is a factor to a parallel world. 2015 doesn't leave this galaxy. I believe 2015 could happen every so often just as solar eclipses do. Omega worlds may have no water. I believe the future of earth will have no water as to make room for as many humans to live here as possible. Water takes up a lot of space and if removed we will have a lot more room for a larger population witch is why I believe they remove the water. They use medications to live forever. They do not die by nature as we do today. The medical advances are so great they cannot die. So population as you can imagine becomes very very large! I believe they will have to do something to stop breeding. As some kind of mandated birth control. They are probably larger in size to us. Weight and height. I believe there body's to have more muscle definition. And are probably stronger. I believe they will not eat or drink but for pleasure they don't require food and water as we do. I believe they attach things to there body's. Devices such as our cellphones and apple watches they have devices hooked to them all the time as we do. They talk telepathically. You know how we have the iphone? There's is the mind phone. They can read minds of peoples of other worlds. As that is a desired way for them to communicate. They do not need sleep as there is no night there they are awake all the time. They have no need for the sun. They can rest but don't require it. and they can read minds they are so technologically advanced. even people from other planets. They also control the climate and temperature. Climate and temperature will be different then our current planet and life. They are so technologically advanced they can spy and see the parallel other worlds as well as different worlds past and present. They in omega earth will speak a similar and same languages. There is also parallel planets down a “eternal chain”. And when you die you travel down this eternal chain of planets. Witch are HIGHLY similar to our current earth time is also important and perhaps down this eternal chain they are similar to us in time. They can also travel to other worlds as well. Many people come to alpha earth because there are so many parallel earths that you are likely to come here with an infinite number of them. But probably majority will go to a omega planet as there population could be in the high to low trillions for a planet similar to this one and planets like it. And what if they increased the planets size? They can meet there parallel self's and there family and friends. Even study other worlds down this parallel chain witch will all be advancing at similar times and rates. They can even see and meet there past family members or friends. They can even see where they will live in the future like if they come to alpha or omega earth or other places like it. The worlds I believe will be wiped out so god can start a new and that's potentially how some get to alpha earth. But they can see themselves here as to look into there lives into the future. So I could be watching myself write this right now. Or where I will even be in the next life who my family will be where I will live what I will do for a living and such. This ability to see into someone’s life is there Facebook. Spying is there Facebook. They want to know what there family members and friends are up to. They have no paper money. Money will be attached to the persons hand at some point. They have no crime or jail. No or few wars with physical combat. Its a more perfect place. With no disease or suffering. There will be no wild animals. They no longer use electricity but new power sources. I have dreams and visions of this place. I know its real. Parallel worlds advance futuristic heaven like worlds eternal life. We will all be going to this heavenly omega one day Ω kzbin.info/www/bejne/oovYmpWCrqh6d5I thanks for reading

[@eccentricorbiter1390]

"Australia is the CPT inversion of Canada" I want this on a shirt

[@unclerick1568]

While I was watching the beginning of this video, I was trying to screw the cap of a bottle of Advil back on counterclockwise. That was a little weird.

[@robertcarbno3914]

This is a very interesting show and I do enjoy seeing how far we are advancing in our knowledge of the working of the Universe and remember if we ever do get to the point of knowing all how uninteresting would the Universe become. I think it is fine for us to have to continue to struggle to understand and learn about our place in Space Time and that is even if we never get the answer to everything. I do look forward to learning a bit more with each one of your shows and the wonderful explanations you give. BTW I use to be against the idea of string theory but I have continued to go back to previous shows and I can agree even if not provable right now it is still theoretical science. All excepted science now started as theoretical science until it was proven and some of that proof took years and even centuries. Thank you for the increase in my understanding and please continue to inform and educate me.

[@Dss-bm3rz]

I'm so freaking lost, and I love it. I love trying to break my brain, it really gets my neurotransmitters going!

[@Hailfire08]

Seriously though, wtf is up with the weak force???

[@JrobAlmighty]

Hailfire08 weak force doesn't even lift bro

[@LuisAldamiz]

Yeah, WTF is up with it? It's there only so neutrons randomly decay into protons or what? What was the Demiurgos thinking when It forged the Weak Nuclear Force in Vulcan's mighty forge? A force that doesn't respect time partity, WTF?! We need a new set of gods that make a rational universe just like in the good ol' Platonian times, when it was all explained by ideal solids, four elements, astrology and bodily humors! Let's make Alchemy Great Again! WTF!!!

[@shannonm.townsend1232]

@@LuisAldamiz o MY CHRIST u r killing me Luis I die laughing your wit game is fyre, siriusly burnt to the ground, thank u for levity! !

[@charyatayev3645]

father issues...

[@culwin]

It should be called the round force! GOLD!

[@lazzatv]

This video is perfect! Please do one about spin definition from small rotation of a n-dimensional tensor field and one on quantum charges definition from phase of a complex field.

[@PlatinumDragonProductions999]

I'm going to have to watch this video a few more times. Great concepts that I need to absorb here...

[@jamesbra4410]

perhaps babar knows more than we give his elephant trunk credit for...

[@treeclimbing7798]

Hope this doesn’t affect Daylight Savings Time.

[@Toomuch77]

The Time-Reversed Universe does not have Daylight Savings - obvious - it has Nighttime Savings...

[@EcoRedRiver]

@@Toomuch77 Nighttime debts?

[@irwainnornossa4605]

And I hope this antiquated crap will be world wide abolished.

[@tedphillips2501]

Yeah - that extra hour of daylight always burns the grass.....

[@krumuvecis]

@@irwainnornossa4605 We could also get rid of the time zones

[@michaelgautreaux3168]

The wise crack 'bout Canada & OZ was priceless 👍...lol A lot is over my head but I'm gaining ground. GR8 show. Many thanx for the effort! Be safe 🦊

[@stangwara]

Smoothest "Spacetime" punchline delivery in the series! Had to open this video on my antimatter laptop to double check.

[@nachannachle2706]

Cool episode. The beginning was tough, but the information converged fairly neatly in the end. Thank you for taking the time to construct back all your deconstructed thoughts into this video, Pr O'Dowd! :) A question: Could we then say that Time-reversal = rewinding causality? Which would then imply setting different parameters to entropy; and explain in turn why time reversal never reverts matter back to its original state?

[@alive2583]

Because our original state was broken. We were always suppose to be made up of antimatter (animation of matter). It’s Cosmogony.

[@Gooberpatrol66]

"Charge. Space. Time." Dang, you caught me off guard.

[@kfurgie999]

Thank you for acknowledging that Feynman meant a literal reversal in time, this is something I have seen talked around from other enjoyers of physics as being a mathematical abstraction, e.g. the second version you give, but it's really not what Feynman meant, he meant it literally.

[@momom6197]

I was first introduced to the concept of a CPT inversion when I was 7. This is the first time I'm actually explained comprehensively what the time inversion is.

[@stylz1]

Think I'll smoke some weed and try this again.

[@iLLeag7e]

There's a good man

[@AAGWproductions]

gonna smoke some weed before this, thanks for the heads up

[@Krokoklemmee]

am there, doing that

[@jojolafrite90]

Nope. Doesn't work... Wait, it kind of does.

[@ngud_gaming267]

My man ( Denzel Washington voice)

[@SimonClarkstone]

13:54 For a moment I thought you were going to say you were back from the _Event Horizon_ KZbin channel. It's one of John Michael Godier's channels where he does long interviews with scientists and science educators.

[@friendlycactus2084]

The Q&A felt like a physicist lightsaber battle. I love it

[@reneecavaluzzi3769]

I love the backgrounds they use for the show. I want to paint my bedroom wall like that.

[@Offline347]

Space Time is Super Duper. 🔁 .repuD repuS si emiT ecapS

[@shappo]

Shouldn't the magnetic field direction have flipped as well?

[@Barnaclebeard]

Wouldn't that be a consequence of reversing the charge?

[@eliomonaco147]

Magnetic field is a pseudo vector. Pseudo vectors do not get flipped under parity transformation, like regular vectors. As an example consider angular momentum which is also a pseudo vector: L =r x p Where r is the position vector and p the momentum vector. Under parity we have: L = -r x -p = r x p = L

[@poe_lovecraft-69writer6]

Elio Monaco cool ty

[@spinnetti]

yeah, its not really mirrored without spin reversing seems like, but I know nothing lol.

[@albertbaliva6436]

My friend very well explained.thank you ITS ALL RELATIVE ...WELL EXPLAINED.

[@ReiHinoSenshi]

This reminds me of an episode of a tv series called Sliders time arrows reversal. The episode started at the end and worked towards the begining.

[@thomasr.jackson2940]

Regarding string theory being science, Karl Popper is not the end all of the meaning of science, and falsifiability, while a strong and important feature in science, is far to narrow to describe what real scientists do. A large part of science, maybe the lion’s share, is really about just exploring, cataloguing, classifying. Even if String theory is eventually shown unprovable, or supplanted by something else, we still explored a promising passageway using principles of rational analysis rooted in empirical science. That sure sounds like science to me.

[@adamzaidi1748]

Well if you take the space time continuum numerical axes then broke it down over the vertical symmetric anatomical bio clock. The antidisestablishmentarianism of the geometric time continuum process will automatically deduct all particles of matter from the astral anthrodeduction borealis fabric of time so which basically means I have no idea what I'm talking about.

[@gregs7519]

The original machine had a base plate of prefabulated amulite, surmounted by a malleable logarithmic casing in such a way that the two main spurving bearings were in a direct line with the panametric fan. The latter consisted simply of six hydrocoptic marzlevanes, so fitted to the ambifacient lunar waneshaft that side fumbling was effectively prevented. The main winding was of the normal lotus-o-deltoid type placed in panendermic semi-boloid slots in the stator, every seventh conductor being connected by a nonreversible tremmie pipe to the differential girdlespring on the "up" end of the grammeters.

[@spinhalflight8153]

Such a great explanation... thank you!

[@MCsCreations]

The universe has no obligation with symmetries either.

[@realzachfluke1]

Matt O’Dowd for President 2020 Let’s make it happen guys!!!

[@KeithCooper-Albuquerque]

@Zachary Fluke: I think you have a great idea there, sir!

[@april5054]

@@KeithCooper-Albuquerque How about you stop with the personality fetishism that got the US into its current predicament in the first place, and instead just focus on policies?

[@geoffreystraw5268]

@bridogg154 Wow another idiot found on the internet. If you think Trump will win then you really are that stupid.

[@jeroen9872]

@bridogg154 I said I would move to the moon if trump would win. Still looking for a ride.

[@realzachfluke1]

J V Dude, *_all_* you need to do is *_become a world famous artist_* and you can take a BFR/Starship around the Moon with Yusaku Maezawa! Simple! I said *_simple_*, not easy! >;-) hahaha

[@RobSomeone]

I love this channel. I understood less than half of that and I love it.

[@MiddleAgedGuy73]

These videos are so interesting, thank you

[@_yogeshsingh]

It's a trick! You have to watch video in reverse to understand this!

[@cloudpoint0]

And also watch it in a mirror.

[@kasuha]

A comment on your dispute regarding the string theory. In my opinion, as long as the string theory can't be used to make testable predictions about physics, it's a mathematical tool, not a theory of the universe. The claim that universe can be explained through string theory is on similar level as claim that universe can be explained through mathematics. We may have good reasons to believe it's true but we don't don't know how to do that. And it all honestly, it might be that even current mathematics as a whole is not the right tool to explain the universe.

[@marcushendriksen8415]

What alternative do we have to maths though? Not being combative, genuinely curious. I see a lot of comments like these, but no one seems to have a workable (or even an unworkable) alternative.

[@kasuha]

We don't have such alternative, obviously. If there was a logically consistent construct where particles are the basic building stones as simple as 1+1=2, it would be considered part of mathematics anyway.

[@marcushendriksen8415]

@@kasuha I agree with you there. Do you have any notion, however vague, of the form that the extensions we need to maths in order to tackle these issues properly, would have to take?

[@kasuha]

My only notion is that in such theory I'd expect the particles and their interactions to be the basic building blocks, not results of complex calculations. We have based our number theory on our macroscopic experience, we "know" that 1+1=2 because our experience tells us that there is such a thing as distinct objects that can be put together. But from the particles perspective, 1+1=2 almost doesn't make sense. I'd expect the "particle maths" to start there, at the actual beginning.

[@april5054]

What do you mean? If it was a mathematical tool, it could be used to make testable predictions. Otherwise, as a tool it's completely useless.

[@giodigi4294]

The Dr. joke at the end gave me ensurance you Guys are still one of us. Awesome, keep on digging ...

[@TheTechnoPilot]

Uh oh, questions section audio peaking! You guys are amazing in your productions for KZbin, so I'm only teasing, but it's hilarious how easily I hear this as someone who works in sound, you didn't slip it past me... ;)

[@recklessroges]

Was there some audio clipping in the reply section at the end?

[@Bildgesmythe]

Well that explains the '60s, the '50s broke the clock. Now the whole universe is broken.

[@tehhkrmn65]

this channel is always consistently giving me good headaches. The ones that form when your brain is going fucking haywire.

[@hesseldekraai]

I really like the video! There seems to be some sort of audio problem near the end (about after the 16:00 min mark)

[@petemagnuson7357]

Is there an audio quality change around 16:30, or are my headphones just acting up?

[@KenMabie]

"CP universe" *FBI wants to know your location*

[@MatthewPotter]

So @PBS Space Time, you missed a real good thumbnail opportunity here... Adding a full on goatee to the thumbnail would have completely made this. Great vid as always!

[@terryhollands2794]

I didn't realize Australia was at the event horizon, my sister, now living in Australia, is visiting family in Canada. Thanks for explaining everything .

[@NTMA11]

i don't even want to watch this, i know it'll ruin my day.

[@icenic_wolf]

16:24 watch your input levels on your mic/audio interface; it sounds like you're clipping (or maybe you're just super angry about this subject?) :D

[@Khwartz]

Really Like your way you make your video: Clear, Efficient and Humorous :) 👍👏👏👏

[@madnessbydesign1415]

Back in the 70's when my father got his PhD, he and my mother went to a party where he proudly introduced himself as a doctor. During the party, a man started having a heart-attack, and several people turned to my father to help the man. At that point, he had to point out that he was a psychologist... :)

[@kdogg8037]

Who is here after the discovery in Antarctica a day ago?

[@fugslayernominee1397]

Lol me

[@MCsCreations]

🖖😊

[@TeeworldsSalat]

What was discovered?

[@DingoDIDeatmybaby]

@@TeeworldsSalat Ligma

[@jolieapuzzo861]

Someone has to dumb this down for me. Maybe my parallel version of me is smarter... I hope.

[@sylak2112]

The last part without music surprised me LOL. I'm so used to so many youtube video with backgrouond music lol. Now we know how matt really sound like! :-)

[@jojolafrite90]

This is a big part of the Janus cosmological model. I can't believe they talked about one of the idea behind this theory.

[@williehaller5840]

Anybody else here after the alaska.nerds found the backwards particles?

[@SolaceEasy]

How many problems in theory are because of infinity problems? My question relates to the idea that some of these infinity problems could be nixed if we understood that there is a point of no more subdividability in time and matter. It appears there is a Planck length of time and a Planck length of matter. Why does this not make some of these infinity problems vaporize? Will someone please explain this to me? Thanks

[@coopergates9680]

What about the opposite end? Is there a maximum length or age? If not, infinities remain.

[@secularmonk5176]

@@coopergates9680 I would offer that there is a difference between an infinity that takes infinite time to express itself (e.g. reaching the edge of the universe), and an infinite that "should" appear in finite time, if the math is correct (e.g. forming a singularity).

[@coopergates9680]

@@secularmonk5176 In pure math, sure, it's easy to verify if something diverges at one and only one number (singularity, such as division by zero), but you can't measure something infinitely small any more than you can compute (finitely many) digits of Pi, or try to construct an angle of 20/3 degrees by starting with a 60 degree angle and bisecting portions of it using the infinite binary expansion of 1/9.

[@theotheremily]

Planck isn't the smallest possible. It's the smallest we can measure with our current understanding of physics without a theory of quantum gravity. Once we have a theory of quantum gravity we can go beyond Planck measurements.

[@shannonm.townsend1232]

@@secularmonk5176 yes I saw that video

[@davidwilliams9948]

This is going to be one of those episodes I have to watch 7 times before I understand it isn't it?

[@noahway13]

It only take me one viewing To realize that I'll never get it.

[@FelipeAndrade10]

I just woke up and watched this video... My mind exploded!

[@atlmyk]

So I understand your mirror universe self gains a goatee. What if you already have a goatee!🤯

[@UniformedDisorder]

...if you have a goatee... you like to peg.

[@my3dviews]

+atlmyk Only if you also have pointed ears.

[@UniformedDisorder]

@@my3dviews if that's what you're in to. I don't judge. 😛

[@StumpyDaPaladin]

Then you ARE the mirrored universe.

[@my3dviews]

@@UniformedDisorder Watch "Mirror Mirror" (original Star Trek episode). kzbin.info/www/bejne/i3aQo5uZe8uCe6M

[@TheExoplanetsChannel]

So.. in an opposite universe, would I have girlfriend? damn.. I'm in the wrong universe :/

[@flyingskyward2153]

In opposite universe, you'd be the girlfriend

[@Jossandoval]

Wrong. In an opposite universe, you are the potential girlfriend in the fantasy of Bois.

[@You-are-right-but]

You might have a boyfriend

[@sharkinahat]

I think you would not have had a anti-girlfriend.

[@theSimsonSD]

You would be the Girl with no Boyfriend :(

[@dgodiex]

I love it that you always have Witch Head Nebula behind you.

[@albertakesson3164]

I just have got love the nerdiness of this channel; the CPL version of Australia is Canada! =D

[@RichardMeikle]

How does entropy work in a mirrored universe?

[@maxwang956]

It doesn't, that's why he said the connection between entropy and quantum mechanics is still not well understood. A CPT-flipped universe should spontaneously decrease in entropy as it rewinds itself back to the big bang but that... feels wrong, so there's probably something we still don't understand here.

[@saikiranalvala502]

Sir is time fundamental or is it emergent like temperature?

[@2010sourabh]

Time is space space/time are both the same thing and it isnt like entropy its relative.

[@archenema6792]

The question I can't get past is whether time exists as a thing in itself, or as an effect of spin and/or momentum.

[@april5054]

@@2010sourabh Well that's true in relativity but in quantum-related theories time behaves very differently to space

[@thatmatt9357]

sai Kiran alvala Time is a thing you can measure on a clock, or you can where it on your wrist; the past is far behind us, the future doesn’t exist

[@mahikannakiham2477]

@@thatmatt9357 I think you cannot be more wrong than that.

[@Li.Siyuan]

Mind blown... I think I understood this at the end but I was confused as hell in the middle.

[@williamcopeland4110]

I'm pretty proud of myself for not getting lost once. Awesome stuff.