Why Did Time Start Going Forward?

[@HistoryoftheUniverse]

Thanks for watching folks! Next video in two weeks...

[@GameTimeWhy]

Great job guys!

[@gtbkts]

Ill be waiting!! Love the content!!

[@TowerArcanaCrow]

This is some great content, especially seeing as these are your first vids. I'm glad to be seeing the beginning of your channel, no doubt its gonna get a lot bigger soon!

[@gaslitworldf.melissab2897]

🏆 Par excellence. ⏰ Speaking of time and English railroads, London was the ultimate in time keeping. Professionals everywhere carried pocket watches. Train conductors, bus drivers, everyone moved to the precision ticking of a clock or watch and would instantly rebuke latecomers. I wonder if they still operate with the same care and efficiency. Ah, that was "merry old England."

[@chrisbrown8640]

I'd like to see more , but frankly I just don't have the Time......

[@coachingfortoday7143]

I find it fascinating that the chemical organization of life (regardless of it's as yet unknown frequency) has such a built-in drive for survival and pro-creation in a universe where entrophy seems to be one of the most dominant laws. We are, in effect, each raging against that entrophy for the briefest of time... organizing into more intelligence to the point that we can understand much of our entire universe. How can it be that life has been given these moments that would seem to be the consciousness of the universe itself, and yet seem to inhabit an existance for such a miniscule percentage of the universe's lifetime? From the big bang to the moments of the evaporation of the last black hole, it is estimated that life will have only been chemically possible for 0.0000000000000000000000000000000000000000000000000000000001% of the life of the universe. We are each the winners of a lottery ticket so rare in time that our unique value is almost incomprehensible. Please, try to appreciate and enjoy each moment of your time.

[@evolved01123]

Exactly

[@EmeraldEyesEsoteric]

We are all just sperm that got very lucky. Perhaps we are still just sperm and death is the same as life, with a few of us being reborn into something else.

[@jatinbangar4371]

Agreed. universe is completely anti-life and yes, the probability of existing (on top of being this intelligent) is astronomically small. That's why I believe "someone " helped create life or at least created a small favourable condition for life to take over. Even after sending the strongest telescopes we don't find anything, we might truly be alone. Maybe alone only in this time period considering the large time scales of the universe

[@DevinDTV]

life couldn't possibly evolve to do anything other than reproduce. it's the opposite of remarkable. and that we exist in this moment is not remarkable either, that's just the anthropic principle

[@michaelking9818]

Leave the weed alone

[@OPFOR109]

Been through this whole series twice, and several episodes 3+ times. I still get new knowledge every time. This series is a gift.

[@eman85mph]

💯

[@ArealMrsSmith]

Ah yes... my daily dose of existential dread. KZbin and quantum mechanics have not failed me.

[@ImmortalIdeas]

👍

[@meyerjac]

My terror and my fascination are in superposition.

[@Dybbouk]

Try Bible criticism too. Some good stuff on KZbin.

[@robertcronin6603]

Lol...nice 🔥

[@AnonyMissOCSec]

🤣🤣🤣🤣

[@Ihab.A]

I became addicted to your videos. When I have time during my work, instead of having a pause at the coffee machine, I watch your videos. Very interesting and well put

[@artdonovandesign]

Its the small, background touches, like the _wondeful_ music during the intro of this episode, that gives this channel such a unique personality and makes it so academically auhoritive and enjoyable. I watch these videos again and again. Thank you, Hisory of the Universe! 😊

[@adalbertoklein8725]

I can't express how much I liked this channel, putting cosmology and physics in a timeline through out our history with the most updated theories. It has been a long time since I saw a science channel for the layman so clear in the explanations and with such a high quality. I watched each video twice, at least, and it seems that I will keep doing so. Congratulations.

[@kx4532]

It beats TLCscovery and the fat people show

[@Baughbe]

"We could only be the imagination of a single Boltzmann brain, floating in the cosmos." - In that case... I want to talk to the manager.

[@Johnc259]

Yes. I have a few suggestions of my own. Peace

[@suckablowfish]

Don’t get your panties in a wad Karen..

[@philochristos]

You are the manager.

[@michaelh.1262]

@@philochristos REEEEEEEE

[@robertbrown3413]

Perhaps Boltzmann topped himself to find out if he was living in the imagination of his own concept... we will never know!

[@Sobek-khufu]

Ah yes. One order of science with a side of psychological horror and a dash of existential dread. Love it.

[@jaylucas8352]

I find it optimistic actually

[@darrenjackson4646]

Where is the horror and dread?

[@JamesEIvoryIII]

@@darrenjackson4646 I imagine it's bc of their individualism (self) - if it even exists- is hardly a blink in all time.

[@seanriopel3132]

That is one of my favorite parts of space and cosmology. What else matters?

[@K200-m7h]

Lol love this comment 😂 love that people can’t understand it’s a joke!😂

[@kr1ptyk137]

This is the first time i have understood entropy. This content is genuinely my favourite to listen to while i do mundane tasks. I learn so much and it fuels the philosophical parts of my brain that i never knew existed.

[@thecatsman]

In stead of doing 'mundane tasks' try understanding what you are listening to, and creating useful bits of memory. New philosophy is created only with thought NOT doing mundane things. Do you agree?

[@user-lm2ix1xd4c]

@@thecatsman where was it said that one cannot both 'do mundane tasks' while also deeply understanding what is being listened to? is that your experience and thus why you have projected it onto the other? it is not mine. when i do 'mundane tasks', i comprehend on an even higher level. the information flows into my mind and fits itself right where it needs to be when i am performing mundane tasks at the same time. small things which i have been doing for years and years. which don't require logical problem solving or complex thought. think.. driving. where your mind goes when you drive! i find your interjection lacking sense in the true meaning of the word and lacking objectivity which we all require when asserting that one's way of doing is somehow worse than ours.

[@thecatsman]

I did not say one could not think while doing mundane tasks , but learning or memorizing usually requires ALL the mental effort one is capable of while retaining general awareness. The brain often learns with no effort or thought at all, but the intellect is more difficult to build up. Personally I found the original content we are referring to quite difficult. (We don't know the age of the commenter 'jrk1--' but I certainly respect his/her apparent desire to learn.) Also, to 'understand what is being listened to' is something different - the effort of learning has already been done.@@user-lm2ix1xd4c

[@mikedrop4421]

These videos just keep getting better and better. This channel is going to expand faster than the universe has once a few more people discover it and the algorithm picks it up. Keep up the great work guys

[@abrahamschuman1692]

Some of the highest quality content anywhere.

[@apextroll]

Imagine those who disliked this video.

[@harriettemacy7399]

I love it too...I only wish I were smart enough to understand it😻

[@jcb1316]

@@apextroll who possibly could?

[@mikesamovarov4054]

Yet full of theories, not one fact.

[@lockandloadlikehell]

It's a video, not content

[@stuartgrier5605]

What a brilliant video. When I was at school, I studied Physics. The teacher asked what time was, just as you did. I thought of a comical answer, I got a few laughs. "So", said the teacher. "What is time?" I thought for a moment, then I put my hand in the air and said, "Time is the force which stops everything from happening at once."

[@straighttalk9999]

brilliant answer,that pretty much explains the big bang

[@eman85mph]

Ohhh a time particle just waiting to be discovered and add to the theory of everything 🤔🕐⚛️

[@bryandraughn9830]

So you're Richard Feynman! I've heard about you.

[@nicklasdincer6720]

Maybe time and the universe happens instantaneously, and its just us perceiving it flowing

[@stuartgrier5605]

@@nicklasdincer6720 Maybe, or we are past the event horizon of a blackhole or this is some beings dream. Until we have evidence for the reverse, I would say not.

[@zackgillespie7451]

Yet the entropy of the universe itself came to create life....such an astonishing fact that if life didn't actually exist you'd never be able to prove that life is possible, yet here we are just trying to figure out how we got here. Life is so beautiful and to have this consciousness is nothing short of a blessing. Love the channel!!!

[@rayzorrayzor9000]

The best line in this vid “The arrow of time points to a direction that time travels in but not the speed it travels at” Brilliant !

[@russianbot8423]

water is wet

[@paulojrmsantos8]

@@russianbot8423 Not all the time....

[@michac.8283]

@@russianbot8423 or is it? First let's define what 'wet' means...

[@TehUltimateSnake]

wow deeeeep

[@imnotacat5299]

@@michac.8283 "Covered or saturated by water or another liquid" Liquids can't be wet, they do the wetting. Have a good day, sir.

[@booradley4237]

I love the little details that one would normally only get from deep dives into long books, like Eddington and his passivism feather

[@stevew278]

I don’t understand what the feather was supposed to mean

[@sleepercel]

@@stevew278Me neither tbh

[@296jacqi]

I’m dismayed that you haven’t gone from 30K subscribers to 30M in the month since this video came out. Absolute quality here on this channel. People are missing out!

[@LEEOC]

Goes to show how much the majority of ppl value knowledge. If it was a Justin beiber video on the other hand... 🙄😆

[@L3r4k]

Isaac Arthur's channel took a few years to get to where it is today.

[@neverdemagain6043]

Not every one. Good narration. Great sleeping voice.

[@jakeh2049]

@@LEEOC This is big tech’s algorithms’ fault. I mean we could collectively decide to still preferentially show people what they individually prefer and tend to click on, but make that from a bigger bucket of things that are preferentially shown such as things like this, educational things, and things that are more beneficial to society. Instead the algorithm gives people fail videos, tiktok lululemon dances, and whatever other useless nonsense not to mention the actual negative stuff that increases fear, anxiety, anger and polarization

[@voiceofreason1829]

Chill

[@miinyoo]

All of these are absolutely brilliant writing and the delivery just fits like a glove.

[@michaelbirbeck9554]

The quality of these videos lights up the internet. Thank you for this wonderful resource.

[@UserAnonymus1995]

This channel is a masterpiece and it's exactly the kind of content I've been wanting to see for a while

[@UserAnonymus1995]

It's probably a very specific thing to mention, but a lot of documentaries annoyed me with their audio work - they had loud noises or anxiety-inducing music out of nowhere right after quiet parts. But the videos here have been perfect in terms of audio.

[@UserAnonymus1995]

@Nelson Swanberg thanks

[@pbujnowicz9124]

I see the correlation between the arrow of time and entropy, since when time goes forward, tornadoes don't create homes, and dough wont separate into flour, water, eggs, yeast and salt. But is it a constant? I don't know. Plus, when you get to the quantum nature of particles, since everything is conserved, there appears no difference between a particle going back or forward in time, as long as energy and momentum is conserved. It seems like entropy = times direction, since things go from high to low energy, ordered to mixed up.

[@mikesamovarov4054]

Careful. Theories are not facts! These guesses could be totally wrong, just like Greek mythology was. We are dumb apes, open your eyes. We have no clue, none of us.

[@Merennulli]

It's worth noting that the Boltzman Brain doesn't float through space continuing to think about things. It comes into existence with memory of all past thoughts, instantaneously has whatever thought it's created in the middle of having, and then dies. The only moment that's real is the last one the Boltzman Brain experiences. In a sense, they also are without time, only existing as a coherent consciousness for that instant. It's also worth remembering that a Boltzman Brain is only more likely to come into existence than the experience we believe ourselves to have. Everyone who buys a lottery ticket is more likely to lose than to win, but someone has won nearly every lottery that's ever been held. Statistically, you know a random lottery ticket you hold is ALMOST certainly a losing ticket, and the Anthropic Principle says that we should assume we are in the most likely situation that could create a consciousness to be having the experience we have. The relevance of the Boltzman Brain is exclusively through the Anthropic Principle - it doesn't preclude the existence of humans the way we believe ourselves to live, but it means the safest assumption is that you're a Boltzman Brain. But the safest assumption is not the safest bet. If, hypothetically, you played "Russian roulette" with 5 rounds in 6 chambers, your safest assumption is that it will land on one of the 5, but you can't collect unless it's the empty 6th so that's your safest bet. The Boltzman Brain has a meaningless existence, only having one thought before dying, so the wisest bet is on being a real human whose actions have consequences. A Boltzman Brain doesn't have to flush the toilet because it isn't real, but a real human will find the house smells rather badly soon if he or she doesn't. Logically, we have to act as if we're real humans, regardless of the statistics. If we're a Boltzman Brain, it doesn't matter if we were wrong for the instant we thought about it. Now if you want a real headache, stop and consider why the Boltzman Brain is more likely - it has infinite time to repeatedly be created by random chance. But so does the observable universe - every distant redshifted photon heading towards our planet, every gravitational mass that will ever effect us, the Earth, and everyone on it could spontaneously come into existence many times over the same infinity. The level of complexity means it's going to happen a lower multiple of infinite times than the Boltzman Brains, but a "Boltzman Observable Universe" would still happen an infinite number of times in an infinite number of varieties but also an infinite number of repetitions and starting at an infinite number of moments. Our observable universe could have just come into existence now with all your memories of it and it will be just as "real" as if it was the observable universe we think we exist in. 24:13 is referring to this as a source for our "big bang", but it would also produce everything as it is right now, just this instant, with every human having memories of everything we think of as history, but things we think of as history never happened. For example, all the things could have come into existence, including photons heading towards Earth, except for a 2 day gap in the photons from Alpha Centauri that would confuse the hell out of us when those photons reached us. Or you could come into existence with the memory of having a full bag of chips at your desk but in reality an empty bag of chips came into existence at that same moment. Hearkening back to the "Russian roulette" analogy, it's once again the wisest bet to assume we're not in a Boltzman Observable Universe for the same reason - everything we observe may be a pointless illusion in a Boltzman Observable Universe, so the only useful bet is to proceed as if we're in a universe with meaning. Yes, you may open the door to find you've come into existence in a world that in no way fits your memories you were created with, but the only existence you can prepare for is the one that fits your memory. Personally, I think we're going to find that quantum tunneling has limits, so no Boltzman pebbles, let alone brains. The Boltzman Brain idea relies on quantum tunneling being able to instantly transport energy across any arbitrary distance, but we have never observed it do that over the highly improbable distances, we just assume it can.

[@OutdorsDanny]

🥲

[@sash1ell]

Thank you for the incredible read.

[@rga1605]

That was quite the trip, but therefore is it correct to say that the idea of a Boltzmann Brain is the same/similar to Last-Thursdayism?

[@Merennulli]

​@@rga1605 I never could get the hang of Thursdays. Yes, there is a very similar concept at play in both. Our experience is completely information sent to the processing part of our brain. Whether that information is from sensory organs, the memory portion of the brain, or is entirely artificial, it's just information and we have no way of telling it apart. With both Boltzman Brain and Last Thursdayism, false memory and sensory data is produced as if it had existed previously. The main differences are that a Boltzman Brain only exists for a moment and is due to the quantum randomness expected across infinite time; meanwhile Last Thursdayism is just reality coming into existence with pre-formed memory and it is intentional.

[@Merennulli]

@Train 2noplace I'm afraid psychology isn't something I know all that well so I'm probably not him. Glad you enjoyed my comment.

[@_IHateHandles_]

'Never find yourself deterred by the unknown, instead be fascinated by it'

[@pandugeet]

Addicted to this series, fallen in love with physics and astronomy again

[@mattenfeld]

As someone that bases his entire career on the laws of thermodynamics….this has to be the most beautiful way it’s been explained.

[@mikesamovarov4054]

Not one ape knows much about reality and laws of nature. Only whatever pathetic info we can understand with our extremely underdeveloped brain. Your ego is too big, we actually have zero clue.

[@THEoldy]

Seeing smoke dissipate out to a higher entropy state is fascinating. In the beginning it's one big clump, at the end it's diffused evenly. But in the middle, amongst those swirling tendrils, the beauty of life is found.

[@owfan4134]

my favorite thing about the process is tending to it, and prolonging the inevitable decay by supplying new order and structure for the swirling tendrils to devour. the inert state of matter chosen as fuel is relatively stable, and can be considered for all intents and purposes already in an unchanging steady state... until the blazing, yearning maw consumes it. sometimes over the span of seconds, sometimes minutes, sometimes hours, the newly deposited fuel source is torn asunder as the sustained chain reaction of entropic decay slowly consumes the system in a glorious blaze of inevitability. nothing I can do will change the thermodynamics at play, i can hardly change the direction the smoke drifts let alone how much is produced or how quickly. the one who tends the flame does so only as adjutant and passive observer; to wield the fundamental forces as a weapon is no more feasible for mortal beings than to attempt to conquer death itself. so it is that as each freshly chopped log falls into the crackling pit in my care, i behold a system of primordial beauty in it's simplest and most readily available form. i stare into the microcosm which foretells the collapse of star systems and galaxies; the sputtering flames of a dying star may yield a cataclysmic eruption of scales unimaginably greater than the simple flame before me, but inevitability and the constant procession of time towards an eventual new steady-state remains identical. each log added extends the inescapable singularity that is maximum entropy, when cold silence takes over and the once roaring flames become energetic ghosts shrouded in clues by the inert ashes scattered about. it is a fascinating and beautiful process, one that keeps me captivated and always eager to experience again, that i might serve as guide and caretaker to the sacred ritual. i really think i understand why our ancestors found such spiritual meaning in fires, and not just because of the obvious paleolithic association with basic survival and food preparation. it's a window of introspection and insight into our shared fate with all aspects of creation, and an opportunity to render respect and compassion to all who find themselves caught in the endless march of time. you cannot avoid death, nor stave off suffering and disorder, but you can act pre-emptively and guide the process towards that inevitable conclusion with grace and mercy. death need not be a looming specter we flee from in adrenaline fueled frenzy as the internal wave-function of our perception collapses into a hyper-dense psychological black hole of fight or flight due to the catalytic gravity of fear. with each crumbling, ash-covered log breaking apart to yield ever more of it's stored potential energy to the licking flames, the heat generated can be harnessed and used for compassionate purposes- it is equally life-giving as it is destructive. how beautiful! I feel such gratitude and peace when i behold the self-devouring serpent, the ouroboros coiled neatly in the confines of the little altar erected to contain it; the blazing heat of it's presence drives away the supplicant, for none can penetrate the wall of radiation both created by and sustained in the teleological pull of the snake's relentless pursuit of reunion and self-annihilation. the architect of the snake's journey are the same fundamental forces which are brought meaning by it's eternal dance. though, perhaps if this video and indeed many modern physicists are to be trusted, the dance is not eternal at all, but has an end and final conclusion from which no order can ever be formed ever again. when the orange and yellow hues dance and flicker across the outline of smoldering logs in the flame under my care, i never doubt for a second that the flame will eventually succumb to it's fate inscribed by the immutable laws of entropy, but neither do i perceive a void from which the absence of meaning is pulled backwards out of the screaming abyss of un-creation. yes, death is sad and scary, this is just as immutable as any other natural or physical law; our egos and the psychological infrastructure that gives them purpose and definition will always regard their own dissolution and collapse as being the icy embrace which seems to be the fate of all creation in the coming trillions upon trillions of years yet to come. but the collapse of matter into a lifeless, inert state is not the true absence of meaning at all. the illusion of meaning based on corporality is rooted firmly in control and domination, which are aspects of our physical consciousness long since evolved to protect us from the ravages of a seemingly uncaring natural world devoid of compassion and mercy. to see existence in such a way is natural, and by no means illogical or short-sighted. we are, in fact, programmed to perceive the world in that exact manner, and the subsequent causal gravitas serves as sufficiently compelling force to set all manner of human behavior and activity into the combusting state- the flames travel across the whole breadth of our physiological and psychological bodies, slowly eating them away as the old is unshackled and the new solidifies into place. the weight of our decisions carry causal impact that knocks billiard balls of innumerable consequences into motion that cascade forever into newer and more alien states to what had come before. from life there is death, and from death there is life- perhaps not for us to claim or dominate, but to be inherited implicitly by whatever comes after nonetheless. thanks for coming to my TED talk, i hope it was pleasurable to read, haha. I'm going to stop here before i keep writing this story for the next hour, peace.

[@YogiMcCaw]

I think you go the memo on that one!

[@roycefruciano5418]

This channel is my favourite ever.. Incredible informative whilst being a poetic masterpiece. Your videos are amazing ♥️

[@voiceofreason1829]

Thanks

[@VapidVulpes]

I cannot stress enough much I appreciate how amazingly beautiful and well made your work is. These are probably my favorite cosmos-esk documentaries of all time (eyooo that's kind of a time pun lol) It's like these videos are a kind of spiritual text. Like, this is how you're supposed to revel in the majesty of reality. Not to imply anything about the existence or non existence of deities. It's just the feeling of wonder and fascination, of glory and beauty of the world around us as best as we can truly try to know it is so well communicated. Thank you so much for what you do.

[@anantharamanmr]

I'm in love with this channel. Not only is the content of high quality, the comments section is hygeinic too.

[@SteveCarras]

Ana tha, very nice name by the way, completely 500 per cent agreed!!

[@lilhotdog7011]

Out of everything in this universe, time intrigues me the most and this video was utterly brilliant. Thank you for this.

[@bntagkas]

time is simply change. stop change and you cant tell if time exists anymore, thats because it doesnt

[@johngreenwood1610]

@@bntagkas But you cant stop change. Even the universe will fall Dark for all Stars will die. You can never stop change because you can never stop Time.

[@SonnyBubba]

“ There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened.” - The hitchhikers guide to the galaxy And to think Douglas Adams might actually be onto something.

[@darionirwin4138]

yea bc it's all on the individual level, to see the truth is to wake up from a dream you can't fall back asleep to. and "the truth is stranger than fiction".

[@cjmacq-vg8um]

OH, another "hitchhiker's" afficionado. these people claim to be so smart but they don't know the TRUE answer to everything is 42! so what's the big mystery? i love these shows and this subject. and i have a different take on it entirely. (well, not entirely.) entropy doesn't indicate the "arrow" of time. there's no absolute, single direction of time. time is indicated through physical motion; movement. and the motion can be percieved in "reverse" as well as forward. ask yourself this question: which came first, the big bang or the start of time? the answer is simple - time started BEFORE the big bang. the big bang was merely the physical expansion of the universe. expansion is motion/movement and without time motion is impossible. so who's to say the big bang isn't the beginning of the universe but its end. if we experienced time in the "opposite" direction we wouldn't know it was moving backwards. maybe we don't realize its moving backwards now. we adapt to our perceptions of reality rather than to reality itself. if we lived in such a universe, where backwards time is "normal," our physics would indicate our "cause" as their "effect." and vice versa. or, we'd conclude that its normal for effect to precede the cause. its my contention that time has no arrow. its moving in all directions at once. just like the universe itself. (it may be possible for time to even move sideways.) its that, for whatever reason, nature has decided for our species to percieve the passage of time moving in this direction. so, put that in your pipe and smoke it till the end of time - which just may be BEFORE the big bang itself, where all movement and all trime ceases to exist.

[@cjmacq-vg8um]

@@darionirwin4138 ... man, sounds like fun. reincarnartion really sucks uh? how do you know you're not being reincarnated backwards, towards the beginning of time rather than towards its end? you just demonstrated the end is just a new HORRIFIC beginning. like an endless circle. how do you know where the circle begins or where it ends? or, what direction its going. naw, i like my fantasy better. its at least logical rather than fanciful.

[@darionirwin4138]

@@cjmacq-vg8um because how could you be anyone but yourself

[@darionirwin4138]

@@cjmacq-vg8um it doesn't have to be horrific if you can just positively embrace the moment fully, that' why its a circle you're trying to learn to live fully as a human without thinking so much

[@almcdonald8676]

This is superb writing and really compelling narration. The quiet presentation is both authoritative and comfortingly familiar.

[@user-florin]

The intro song is "Tell You Something" by Rune Dale if anyone is wondering

[@lawrencenaickeryfyt5570]

Excellent work. Thanks for consolidating a complex subject into a timeless treasure.

[@EmeraldEyesEsoteric]

Fascinating. I never imagined we could all just be floating dreaming brains in an empty eternity. It still doesn't make any sense to me.

[@catpoke9557]

I have thought about this a lot for pretty much as long as I can remember. At first it was just based on the thought that if we can dream, how do we know this isn't a dream? But as I got older it changed to thoughts about how ultimately, every sense you have is just information being processed into something tangible by your brain. Which means all it takes is a brain that THINKS something exists, for you to feel every sense imaginable. Pain, smell, sight, hearing, and more. We have no way of knowing that we are in the universe we believe we are. We may have bodies elsewhere. Or we may just be brains. Or we may be computers. Or we may be something that we, within this universe, can't even comprehend. After all, different realities follow different rules. We're even superimposing our own rules to even use words like "reality" and "existence." Existence is a circular thing. It's a concept that can only exist if anything exists at all. Existence must come into existence... in order to exist. It's possible that if there is, was, or will be something else other than our own universe, it wouldn't actually EXIST. As that is a concept unique to our reality.

[@Niveden1]

Why do Boltzmann brains have to be human? Now I'm imagining a Boltzmann dog brain, drifting through the cosmos alone, wanting belly rubs but getting none. :(

[@willywonka3050]

**sad woof**

[@CrimsonA1]

Give the universe belly rubs y'all! :D

[@dokidokideathproof]

Dude NO! I had a close call with my pup last night and I put on some soothing music and just stared in her eyes as the meds the vet gave her for pain took over and I felt like we both had this out of body experience that I could not even begin to explain, I finally snapped out of it and just felt at peace for whatever was going to happen. It was probably just my brain trying to get me to cope with everythings inevitable end or beginning. P.S. she is doing better she had a false pregnancy, still not 100% but way better than she was.

[@296jacqi]

Made me lol. 😆

[@TrainerFromUnova]

Boltzmann brains just refers to a super advanced civilization that even the term "Magic" doesn't do justice to what they are capable of doing. They can alter the laws of physics on a whim, create universes, multiverses, etc,. If that theory is true, that means our universe is jusf one of many universes that the Boltzmann tremendously advanced society is experimenting on - for their own goals; and honestly - for their entertainment.

[@Alex55072]

I was expecting a mention of the transformation of matter into waves and the overall tendency of the universe to reach towards the base energy of the quantum fields that permiate it. (because of space expansion via dark energy). Now I wonder if the random quantum fluctuations that give rise to particle /antiparticle pair could give birth to a new pocket universe in timeless parent universe.

[@neon_dex42]

I think Lee Smolin has an idea like that.

[@EmeraldEyesEsoteric]

If the universe is electric you can get rid of dark matter and dark energy completely.

[@Rockzilla1122]

@@EmeraldEyesEsoteric it's not.

[@BastiVC]

This is propably the most brutal description of boltzmann brains I ever heard. Seriously, im afraid right now that everything I know is just an illusion, and I float through eternity, all alone. Mommy!

[@DevinDTV]

no worries, if you are a boltzmann brain you only persist for a single moment. the way he described it was slightly strange. you wouldn't be a fully functional human brain. you'd just be the electrochemical relationship that a human brain would create to have your current experience. your memories and perception of the current moment would be an illusion of your configuration, and in the next moment you'd dissipate and cease to be conscious

[@BastiVC]

@@DevinDTV You forget infinity. It is astronomical unlikely to form a Boltzmann Brain in the void for just a single moment. It is even more unlikly that this brain would persist for several moments. But, infinite time...

[@perrynnlynch3811]

Great comment. Unsettling thought.

[@poll-lie-ticks1776]

@@DevinDTV It's actually worse than that. If Boltzmann Brains are an inevitability and far more likely than the existance of evolving life in a universe, then the existance of Boltzmann Brains within a sealed cacoon of sorts, together with warm flowing blood and an external but attached heat source, say decaying uranium isotope, is also inevitable. They would be less likely than a Boltzmann Brain appearing within a vacuum, but still inevitable. Such Boltzmann Brains could live for hours, days or weeks and experience an array of thoughts and emotions.... It's crazy stuff!

[@catpoke9557]

It doesn't matter. If reality is an illusion, it's still reality. It's the same thing you've come to know. Let me put it like this... What if you spent your entire life believing reality was an illusion. What if you spent your whole life believing that reality is the result of a brain floating in a realityless plane, but then one day, you found out that's not the case. Instead, reality is inside the plane you believed you were floating through, and is not the result of your brain, but rather your brain a result of it. In otherwords.. what if you found out that reality was exactly as you in this reality believe it to be? If you spent your whole life believing your reality requires a brain making an illusion in a space where reality does not exist, you'd say the same thing. "So reality isn't real? I don't exist?" But it is real, and you do. It is just not in quite the same way you previously thought. As long as things are perceived, things are real. As long as they are real, they are reality. Whether your reality is a result of a brain somewhere else, or your brain is the result of a reality right here... It's just as real either way.

[@seanaugagnon6383]

This is one of the best science/philosophy channels on KZbin.

[@nickharrison3748]

What a graphics. What a good soothing voice ..good soothing background music and a solid explanation of scientific phenomena as simple as possible. perfect presentation.

[@nb9403]

Moreee please.. Who ever writes these scripts is a GOAT

[@bamcr1218]

I’m only 3 minutes in and already i can clearly tell how much time and effort you put into this video as it is truly a beautiful piece so far. This may be considered trivial but I have to ask. At 1:50 you speak of St.Augustine contemplating the passage of time and envisioning the stars inevitably blinking out of existence. But I thought it was many centuries later that humanity discovered and accepted that all the lights in the sky were stars like our own. Am I wrong on this?

[@ilduce5874]

Saint Augustine wasn’t alone over the centuries as a man of the cloth and a man of science *and* a philosopher all in one guy. One example is monk Mendel who figured out rudimentary genetics by crossbreeding peapod flowers. The Church in its former position of power over almost everyone, strenuously opposed Galileo because he had the audacity to suggest that Earth is *not* the center of the universe, nor is the Earth’s sun. That certainly seems more driven by human ego than an unfalsifiable divine fiat.

[@iamise]

Really enjoying your videos. Hello from the past to the 1 millionth subscriber!

[@Sharperthanu1]

Time did not start "going forward." Physics unfolds and gives the ILLUSION of time going forward.There is just one eternal now.

[@PabloAfroSamurai]

I had never heard of Boltzmann or his brains before, I am now shaken but also kind of excited

[@egonieser]

Ever since I learned about the death of the universe when I was 9, I spent years contemplating what does it mean for us, any of us and our distant future predecessors. Also it answers the question of what's the meaning of life. It's very clear there is no meaning of life, there is no achievement or legacy that will be eternal because sooner or later everything, everyone human or alien has done, achieved or left behind will be gone without a trace. The very powerful words of: "The very last hug, last kiss, last embrace, by the very last humans before the universe ends..." They will forever haunt me. Everything we do is meaningless. Everything anyone or anything, human, animal or Alien does is meaningless. Unless we can reverse the heat death and cosmic expansion, what's even the point? Why leave a legacy when there will be nothing and no-one around to appreciate it? Well there will be no legacy left in the first place because there will be nothing left. Not even an atom. I can somewhat see why people turn to religion because reality and science is nothing but miserable news.

[@JohnnyArtPavlou]

And yet, we must live. Is love real? Or kindness? Or humor? Or beauty? Maybe these are all coping mechanisms. Or tricks of our biology. I mean it seems as if you were asking for an eternal witness to what we have accomplished and what we will have accomplished before it’s all over. I mean why be upset that it’s all going to return to nothing if we can agree that it all came from nothing. Let’s just except that as part of the rules of the game. And enjoy the wonders and mysteries of the whole thing. Anyway it’s not going to die before you die. Maybe you’ll find some consolation in that. Maybe you can leave a really good temporary legacy that makes a difference to the future of mankind. Even if that future is only another billion years. Or million years. Or 100,000 years. 🌞⭐️🔥❤️💎

[@robertstevensii4018]

You have no idea if the universe will end. You only know what a bunch of experts have told you to believe. You're no more enlightened than anybody else. Come watch some tv.

[@billyumbraskey8135]

Only atheists arrive at this (faulty) conclusion. Those of us who know that this universe was CREATED know better. If you really believed this then what stops you from just going full hedonist and morals, ethics, consequence be damned? It's precisely because, written on your heart, you know this is wrong. You know that the meaning is derived thru reverence and effort.

[@billyumbraskey8135]

@@--Singularity-- without an independent, objective arbiter, all human morality is relative. an objective, universal morality requires God. otherwise, a society of pedophiles can all just agree that their proclivity is perfectly moral. you can't have objective, universal morality without a universal, objective judge. That's God. *TIPS FEDORA*

[@joni8090]

Before You was you were but Not in Reality until Birth then your constitution changed to Consciousness written in a Code called DNA of which you are it's Conclusion but this is only an epoch of your Spiritual Incarnation to be for in the Twinkling of an eye you will be Changed when that Seed falls into the ground and you are born again but lacking " Awareness " how could you know this Destiny for everything has its Beginning Born for Eternity on bended knee head bowed I bet you will say Thanks and mean it !! Jesus is the Key 💖

[@DelftTrains]

This channel will have millions of subs pretty soon, this is so cool 🙌

[@sonang4154]

This is the best video I have seen so far my whole life.

[@ThuyTran-ci2et]

My favorite You Tube channel ever !!!!! Informative, entertaining, thought provoking, infinitely mind scratching

[@misselnora]

This is just amazing. I never understood these topics growing up, I always felt excluded somehow. But this is opening up that world to me, it's amazing! Thank you! I wonder if there was a state of even more order, before the big bang... Would time stop going forward at maximum entropy? Also I heard about the big bounce in another one of your videos, I wonder how that theory explains the entropy of the universe.

[@That_Freedom_Guy]

So entropy is the big bang. The flow from order to disorder, from hotter to colder IS the big bang continuing to cascade outwardly.

[@ruskinyruskiny1611]

"Time , he's waiting in the wings, he speaks of senseless things, his trick is you and me boy" David Bowie.

[@freya7084]

My toxic trait is believing I understand this. Signed: astrophysics student

[@julianburkert]

True story?

[@jubbardtheflubbard4380]

The odds of a boltzmann brain accurately believing in the laws that dictate it's though are probably pretty low. I would imagine if I was a boltzmann brain created from a random soup of energy that what I believe about physics wouldn't reflect how my boltzmann brain actually works.

[@danpierce8862]

I get that we are designed to percieve and experience time in a linear manner. But time does not do the moving, we do.

[@dalegray5012]

The comments I just made are from some of the best minds I have known, from Stanford, MIT, IAS at Princeton, Kalvi, and Aspen Physics institute where I live. I am greatful for my graduate studies at Stanford and my PhD from MIT and 40 years of thought and work on these issues. So grateful to live NOW, and see this all happening. Best, Dale Gray, CU Boulder Department of Astrophysics.

[@73honda350]

How do we know time is going forward? We only know time movement in one direction which we have arbitrarily called forward. More appropriately would be to say we perceive time moving towards increasing entropy.

[@SwordQuake2]

19:21 is that a real nebula? If yes, what is it called? If not, what's the picture?

[@travissheard6425]

Because someone pointed one way and everyone followed. While the animals and cosmos danced in all directions.

[@namehere4954]

Exactly! Time is a man-made concept - this is why physics can't find the opposite direction when it should be able to. I also don't believe in entropy as it is merely ordered decay but we assume the decay isn't organized because we can't see the patterns or the patterns are too complex.

[@thelanguageofthebirds]

I have a book called “timekeepers” that divulged into the history of time keeping. It infuriated me they could make it illegal to have the clocks not aligned to the desires of Julius Ceaser (according to this book). So I could never overlook that, this is compelling me immediately due to the invocation of fire as a way to explain the process of entropy, energy and thermodynamics. ❤

[@lunam7249]

"the annals of rome"- TACITUS = lifechanging

[@robertpapp9280]

These documentaries are simply amazing!

[@ScottyDnB]

I think this is my favourite video of yours, nothing like an existential crisis before bed.

[@maremaarten]

I must say, a disembodied brain beyond time and space trillions of years from now is the absolute least of my worries.

[@moncef2733]

Except if we are thinking right know that we are in our universe but in reality we are a boltzmann brain and the universe is already at its heat death state

[@vauchomarx6733]

If you actually were a Boltzmann brain, it would be infinitely more likely that your conscious experience made much less sense than it currently does. Rather than something coincidentally so consistent with an ordered material world, your experience would more likely be like a weird, random dream. Also, most Boltzmann brains would just disassemble faster a blink of an eye.

[@RichWoods23]

I don't see the existence of humans as necessarily being more improbable than Boltzmann brains either, as contended on the basis of the number of particles which make up a human body. Biological life has organising principles, primarily reproduction and descent with modification, such that it's taken 3.8 billion years for us to turn up in a comparatively more benign environment than the vacuum of interstellar space. A Boltzmann brain is just a randomly appearing association of particles which happens to function as a conscious entity for a period of time (and usually as short as you suggest), having to be held together by the fundamental forces in the face of all the background noise of its particular environment. I would say that it will be far easier for Boltzmann brains to exist trillions of years in the future, when all the clutter and heat in the universe is further apart and less energetic, giving the brain more time to learn how to maintain and reproduce itself before being ripped apart by the onslaught of external particles or losing the ability to function as a conscious entity through its own inevitable quantum fluctuations.

[@bentationfunkiloglio]

Enjoyable, but mostly of a history of time. Still worth watching.

[@hiersdable]

Time started moving forward because the Universe needed the awesomeness of my bad self to exist.

[@iaw7406]

If time was going backwards we would still regard it as going forwards.

[@bazsnell3178]

If time was going forwards we would still regard it as going backwards.

[@pastlife960]

But what if we went... sideways?

[@loki6626]

.gniht egnarts a si emiT

[@paulojrmsantos8]

@@pastlife960 There you go, joking all the time...

[@colonelgraff9198]

The last time I was this early Time was just beginning

[@arthurlovan9910]

OMG!!.. Any deeper, I would've never surfaced again. That's the best video I NEVER EVER..want to watch again. Thank you, for that experience, I'm going to misbehave now. For a long time

[@domdos2264]

Beautifully presented and narrated. Really enlightened me on the subject. Thank you.

[@indonesiainmotion]

This, made me questioning. But thank you for the "storm". Great video

[@Grenaden86]

Someone in a fb group I belong too hypothesized that time is pushed out almost like pressure, as if it's a nonspatial dimension that is attempting to reach equilibrium by moving forward to something else in another dimension while it attempts to reach equilibrium.

[@ImmortalIdeas]

Time never moves. Only mass stretching perspectives. ;))

[@Ryan_Harkin]

There is no Time, only movement.

[@pastlife960]

Christopher Nolan wants to know your location.

[@phillipglover4411]

7:17 You know he's about to start cooking when the flute comes in 👏🏾

[@Strydr8105]

Time is just a man made device of measurement, designed to organize and plan our daily activities. The process of nature's constant evolving, can be measured by the function of time. This enables man to succeed in the advancement of life. Time is neither fast or slow, it is only constant.

[@ronjon7942]

I hope this guy is making money on these, his presentations are priceless.

[@ronjon7942]

Oops, and gal..sorry, Leila.

[@HistoryandOtherStuffwithBV]

If I wanted to get an existential crisis, I would've watched Kurzgesagt lol. Not that I'm complaining tho. If it's for content as amazing as those of this channel, I'm willing to endure such crises.

[@DragoniteSpam]

What's better than one existential crisis? Two existential crises!

[@Darklazer32]

Ah yes. Time for my daily existential crisis.

[@HistoryoftheUniverse]

Imagine what it´s like making them. Crumbs

[@Darklazer32]

@@HistoryoftheUniverse please do keep it up, love the work.

[@Craigish93]

@@HistoryoftheUniverse Appreciate these video, keep up the good work 👍

[@supinthiam5741]

Racist pfp. Please remove

[@PoisonNuke]

I must admit this is the uttermost best documentary on youtube of all time (for now). This is an unprecedented level of production quality, matching an even surpassing the best of established channels like BBC. Thank you so much for that. I hope there will be some other topics too in the future, more "grounded" ones in terms of relation to the earth :)

[@mikesamovarov4054]

Most theories are just theories. We can't even proof evolution of life on Earth 😂 There were also theories that Zeus existed 🙄🤦🏻‍♀️ We are still stuрid apes, we can't even do weight loss right. Are you trusting these "theories"? No proof, it's guess work at best 😂🤣😂

[@wyqtor]

Make sure to check out their other channels, like for example History of the Earth, which is a bit more down to... Earth!

[@PoisonNuke]

@@wyqtor thanks a lot Sir!, didnt knew about the other channels until now. Have a good one!

[@jpak8]

These videos are full of names for technical thrash metal bands. Maxwell's Demon, Collapsing the Wave Function, so many good ones 😂

[@orinblank2056]

I really have to wonder if physicists have many existential crises. Because I definitely get a little overwhelmed at the sheer depth and complexity of our universe, and I can't imagine that it gets less overwhelming as you learn more

[@doktorfury8616]

Fun thought, the end of time has happened already, an uncountable amount of times, we merely exist in one of the infinite ordered states of energy and matter that are possible after the complete entropic collapse of the original system happened.

[@Lopfff]

Cannot. Stop. Watching. These. Videos.

[@twosongs7396]

Yet another brilliant documentary. Much gratitude to you and your team.

[@divinewind7405]

NEWSFLASH!: TIME DOESN'T FLOW IN ANY DIRECTION, THAT'S ONLY HOW WE PERCIEVE IT IN THESE MONKEY BODIES.

[@jasonseagram4622]

Monkey body, No

[@communist-hippie]

This channel is good for me as a medium talented brain. Always get lost on other channels when hjey bring up formulas etc. Well explained here

[@jackspence625]

Ah, minds floating aimlessly through space; it’s an experience often reported before one's morning cup of coffee.

[@iyodofrancis1469]

My oh my, the intros to these videos are straight out of a dream

[@darthjarwood7943]

Time is relative...what we know as a minute is only a minute on earth ...a construct of the human mind that evolved to help us understand and survive the world we live on.

[@harpo345]

Being a Boltzmann brain is no more terrifying than existing in a cold, entropic universe gradually drifting to complete disorder and chaos. Whatever its flavour, a purposeless, nihilistic universe is not worthy of terror - or any other emotion, other than slight annoyance that we should be put to the trouble of briefly existing in it.

[@raipramana843]

My new favorite channel. Way better than netflix

[@APufferfish]

like you said earlier in the video, reordering the billiard table is possible, but highly improbable, so entropy shouldn't reverse in ordinary circumstances. but if, like at the end of the video, the universe enters a state of maximum entropy and time becomes meaningless as nothing happens, surely if time is infinite then every possibility can occur, so the particles rearranging into a more organised state by chance could and would happen.

[@samurai7474]

A video with substance. Content you can learn and grow from.

[@dearjohn8789]

Time is a human concept to deal with change

[@esk8er900]

Each of these videos is a masters thesis in modern science communication & should certainly be on the corresponding streaming services my friends!!!

[@brufnus]

As a train driver I don't understand the notion of collisions because of differences in time calculations. Even then, they should keep track of their trains by confirming a trains' arrival before sending off another train in the opposite direction. We don't regulate train traffic by means of time, but by means of observation of the trains' position. Back then that should've made just as much sense as today.

[@lunam7249]

position. correct. however de-broglie wave 2 slit expiriment shows that system fails....however as a human i must agree with you positions location seems "better" than time....unless the velocity = zero

[@svj9958]

Infinity, super force, attributes to measure the immeasurable, existence is beyond values,. This video is one of the best attempt to explain the above verbs In a simplistic manner with logical and reasonable ending without any dogmatic concept. Keep it up gentlemen.

[@psytescene]

Professor Cox aired a program that told of similar to this one... which got me to thinking, (a bead of sweat dripping from my brow). Could this really be the situation we are facing? There must be another way, and it is highly probable that someone already knows of this. ... and then it came to me. Of course! Let us turn towards matters of the Spirit, of God, and of that most supreme of forces, (if you will), love. We have material of this kind at hand, and plentiful. Ancient and sacred texts, mythology, and so on, there for perusal and contemplation. I wiped that bead of sweat from my brow, the grave concern had now been lifted. I could continue living and appreciate the wonder of life, the light and warmth of our sun. From here I sensed that I had begun a journey, one that resonated with my soul, and that the way ahead would be a fascinating and intriguing one, that held a future that would be beyond my dreams.

[@Eatchins]

I thought Anton and cool worlds was the epitomy of youtube, little did I know and i find this treasure of unseen material just waiting for me to gorge on. Praise be the atom!

[@reesetyra902]

These videos attract the right kind of people