Will the Universe Ever End? | Episode 1304 | Closer To Truth

Is the end coming? In the far, far future, what happens to planets, stars, galaxies, black holes? What’s the ‘Big Rip’ and the ‘Big Crunch’? And if 'multiple universes’ exist, if one universe ends, do others begin? Featuring interviews with Michio Kaku, Max Tegmark, Saul Perlmutter, Alan H. Guth, and Ken Olum.
Season 13, Episode 4 - #CloserToTruth
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Closer To Truth host Robert Lawrence Kuhn takes viewers on an intriguing global journey into cutting-edge labs, magnificent libraries, hidden gardens, and revered sanctuaries in order to discover state-of-the-art ideas and make them real and relevant.
▶Free access to Closer to Truth's library of 5,000 videos: bit.ly/376lkKN
Closer to Truth presents the world’s greatest thinkers exploring humanity’s deepest questions. Discover fundamental issues of existence. Engage new and diverse ways of thinking. Appreciate intense debates. Share your own opinions. Seek your own answers.
#EndOfTheUniverse #Multiverse

[@patrickfitzgerald2861]

"In the long run we are all dead." - John Maynard Keynes

[@fredriksundberg4624]

@Patrick Fitzgerald : But please don't tell the religionists, it might upset their mental map of their World? ;-)

[@patrickfitzgerald2861]

@@fredriksundberg4624 Oh I think they basically understand. That's why they're so very angry these days.

[@b.g.5869]

In the short run actually.

[@junevandermark952]

It’s as likely that my personal consciousness will survive the death of the material body that I inhabit, as the personal consciousness of an alligator will survive the death of the material body that he or she inhabits.

[@patrickfitzgerald2861]

@@junevandermark952 Along those same lines, I believe that either all animate matter has an afterlife - even alligators, or none of it does. And my bet is on none.

[@b.g.5869]

The filming dates of these episodes is really peculiar. This is episode 1304, which means it was first broadcast in 2014. But if you're familiar with what some of these people look like today (e.g. Kaku, Guth, even Robert) it had to have actually been filmed many years earlier than 2014 (Kuhn is currently almost 80 years old and Guth looks MUCH older today than he does here). He's been making CTT episodes off and on since 2000. I suspect a lot of the footage is simply recycled/re-edited footage from many years ago.

[@b.g.5869]

@Pat Mahon Are you on crack?

[@Blap552]

Thank you. I was wondering how he afforded to traveled all over the world for very short interviews but I still love them!

[@joshuabrunetta4656]

He does long form interviews and uses cuts in different episodes depending on the theme. I’ve seen a few episodes where his guests are being interviewed in the same setting as other episodes but talking about different things

[@b.g.5869]

@@joshuabrunetta4656 Yes. He also has stock reaction shots of himself that are reused. I've seen the same reaction shots of him in different interviews with different people.

[@Mr.Anders0n_]

Or maybe he's finally found the Truth and unlocked the secrets of the universe which taught him how to time travel 🤔

[@beardedroofer]

Tegmark: "Dark energy is just a code word for our ignorance." My sentiments exactly.

[@simesaid]

It's not a code word, "darkness" is the antonym of "light", light is illumination and illumination is knowledge or awareness. So "darkness" is _literally_ lack of awareness, or ignorance. We don't know, and that's why it's called "dark" (we don't know) energy. It's not a code word, it's very precise.

[@beardedroofer]

@@simesaid Interesting, thanks.

[@simesaid]

@@beardedroofer I should really have addressed that comment to Max (who I really like), but yes, etymologically we can only "know" (from the ancient Greek "gnosis") those things that are "illuminated". To be _agnostic_ is to say "I do not know" or "I am ignorant", because "I cannot see". And this is where we derive common sayings such as "we are in the dark". Whether or not this was at the forefront of peoples minds when the term "dark energy" was coined, I cannot say, but it's quite correct regardless - "I have no knowledge (of just what the hell) dark energy may be"... And it's all a lot of fun if you're a word-nerd like me!

[@vhawk1951kl]

Because you profess ignorance of something, why attribute your ignorance to some imaginary other? - "we" and or us or our, can only be imaginary.

[@simesaid]

@@vhawk1951kl if you're such an avowed solipsist, then who were you replying to?

[@fortuner123]

"Dark energy is a code name for our ignorance". - beautifully and honestly described as scientists do. If only religions could be so honest and pragmatic.

[@Kenji17171]

Funny

[@vhawk1951kl]

"Our" embracing you and who else? If you don't have a clue why project that onto some imaginary other?

[@70ad25]

Dark energy is not a code name for ignorance, which was explained by the great Roger Penrose. Dark energy is equivalent to Einstein's cosmological constant, an antigravity force which Einstein put into his general relativity equations to counteract gravity, as Einstein thought the universe was static. Einstein called the cosmological constant his biggest error, but he turned out to be right with what today we call "dark energy".

[@enriquea.fonolla4495]

@@70ad25 But we dont know what it is. That is the definition of ignorance. The problem is some people see ignorance as something bad.

[@70AD-user45]

​​@@enriquea.fonolla4495 We don't know what it is, but I'm just saying Einstein called it the cosmological constant. and Roger Penrose today accepted this definition.

[@guitarvs.physics5473]

I don’t understand how this channel has so many episodes of such a high quality, and still not getting a million subscribers. Edit: I thought the numbering system they used referred to the actual number of episodes, thanks for letting me know.

[@natphil8377]

Guitar vs. Physics most of the general populace are not intellectual enough and/or able to appreciate such content, sadly.

[@pebblebeach8517]

It’s shameful this channel isn’t received by more viewers. Each new production is a gem.

[@adeelio83]

Was just thinking the same thing. I suppose we are the lucky ones.

[@fuhq5121]

While I watch it, it is not "premium content" in my opinion. That's a possible reason.

[@HouseofRecordsTacoma]

ten minutes seems to be the limit of many afflicted with short attention span.

[@EugeneKhutoryansky]

I was disappointed at Kaku's discussion of Proton decay as if it is a fact, when he should know that it is purely theoretical, it violates the standard model, and it has never yet been observed.

[@mustafaelbahi7979]

I hope you will not be disappointed if you find yourself in Heaven or Hell. Because consciousness was not noticed, you do not have it.

[@rclrd1]

Michio's "science" consists of the all the currently fashionable wild speculations of physicists and cosmologists, presented as _entertainment._

[@mustafaelbahi7979]

@@rclrd1 Don't try to explain Misho's mind, which seems a little tense here, to wait and see what happens.

[@b.g.5869]

Kaku has issues.

[@chrisc1257]

@@rclrd1 And paid for by you, the rube with no money.

[@shashidharshettar3846]

I thank you dear sir for “your wisdom held questions”, helps us commoners to learn a lot

[@BB-dm3pm]

ETERNAL UNIVERSE Those who say the universe will end may well be underestimating the universe. End? What does that mean in the context of a permanently changing universe? The cosmological constant is dynamically constant. That is, it's unending change. The universe is simpy permanent change: motion, dynamism, transformation, with long periods of slow motions that gives the impression of steady states. Balance and disruption are its behavioral patterns. So where the universe is concerned phrases like beginnings and endings have no meaning. Sentient beings have birth and death cycles. But the universe simply unfolds as it must. Big crunch, cold fading away into nothingness, or escape into multiverses via inflation, all do not signify any end of the universe. On the contrary, ETERNITY is the natural state of the universe, with or without us, or living forms known to us humans. If this does not humble homo sapien sapiens, what will?

[@jhunt5578]

The idea of a multiverse where all infinite possibilities occur is terrifying. Because worlds like ours, and worlds far worse than ours will reiterate infinitely. Infinite holocausts, infinite animals being preyed upon, infinite wars and torture. Sure there will also be infinite good things happening. It's still terrifying to ponder.

[@kuyab9122]

Maybe that's the reason it takes such effort or much contemplation to arrive on thinking about these things.

[@enriquea.fonolla4495]

so we have an exponentially growing problem of evil paradox. Nice god we have,

[@lassoatrain]

Is that how you feel about the cells in your own body? Have you ever wondered about the fact that we know there was a past but that it is unreachable now . We know there will be a future with some degree of certainty. But for that is also out of reach . We can someday travel the speed of light but that will only get us some place faster and then we will still have to wait for time to arrive . It will only get you to work before 7:00 but you will have to wait for 7:00 to arrive . We all live in the present and the present is less than one second and then it is the next second. Have you ever wondered how we all exist in the same second no matter where we are . The only difference is in the time it takes to send and receive information from one another. But we all experience and can interact with the universe in the same second. It is because we are all the same being .we are all part of the same creature .the universe is but one cell in the body of Christ .

[@enriquea.fonolla4495]

@@lassoatrain If there is something we can be sure of is that we will NEVER travel at the speed of light. Not in this universe at least. And read about relativity because your last sentences shows that you dont know how the universe works.

[@enriquea.fonolla4495]

@@lassoatrain and BTW, you won´t find anything about the Relativity of simultaneity in the Bible.

[@JohnCompton1]

I find this subject fascinating but sometimes the answers get a bit more than i am able to conceptualize. Saul Perlmutter is always a welcome sight to articulate very heady subject matter in a form i can digest.

[@rclrd1]

It's amusing the way people talk about "we", as if human beings will still be around over the time scales they're speculating about!

[@exxcellbx6139]

Hahah.. same thought here...

[@exxcellbx6139]

Although I was a little more rude.. I would change it. But won't. Lol

[@Aguijon1982]

Ey Dire Straits will still be around

[@ghazanfarali3285]

Just chill man these are insane and baseless stories!!!

[@brettcarlson2581]

I mean dinosaurs lives over 300 million years. Thats a pretty long time to be around so you could see some pretty interesting things

[@matthew944]

Why do most humans not ever ponder these higher mysteries? Most are perfectly content going through life without thinking about these fundamental “laws”. I love the Universe, I hope I never stop having the ability to ponder and observe it.

[@chrisc1257]

Good, because the universe does not exist.

[@africanandproud6792]

Because when you are stuck in traffic you don't care who's also stuck in traffic in Andromeda.

[@mattgrant5341]

Stfu nerd

[@markstewart362]

Most people are little maggots

[@name5702]

There is no infinite meaning

[@edwardrussell7168]

This is human concept.. the universe will never end .. it will keep expanding with additions of more galaxies.. how do I conclude this???

[@IkeReviews]

Yes I believe that's how it will be nobody knows if the universe will end or not

[@somerandomperson3970]

Yeah. Can't we just strengthen our genes through mutations and stuff to handle lots of gs whilst finding a way to go faster by finding new materials from nearby planets and such, then get out of the earth (taking the important stuff with us) and travel backwards (centre of the universe, if it exists) if the acceleration is compounding? Just an optimistic theory

[@fortuner123]

In the next millennium people will look at videos like this and think how quaint it is that we knew so little and troubled our minds with things we knew nothing about. I

[@HakWilliams]

The universe will never end. It's got that sigma energy.

[@hybridwafer]

Michio Kaku is always such a drama queen. He knows very well that the Milky Way won't "die in fire" upon merging with Andromeda. Stars are so far apart that it's improbable that any single collision will take place.

[@roberte.6892]

That has to be b.s. though, to some extent. There are so many stars and black holes in each universe, that collisions will be unavoidable, and changes in orbits of planets around stars, or of stars around super massive blackholes will also be unavoidable.

[@leonardobrien]

It will be swallowed up, like some small town that becomes a suburb of an expanding nearby city. That was his (somewhat dramatized) point, I think. There won't be, effectively, a Milky Way galaxy, anymore.

[@Darksaga28]

rubiks6 and who wants your respect, mr. nobody?

[@hybridwafer]

@@roberte.6892 "The average distance between stars is 160 billion km (100 billion mi). That is analogous to one ping-pong ball every 3.2 km (2.0 mi). Thus, it is extremely unlikely that any two stars from the merging galaxies would collide." This is the "collision" we're talking about. You could of course argue how long the collision lasts because eventually, due to changes in orbits, stuff will collide. Either way, the math is clear on that stellar collisions will be rare and insignificant on the whole.

[@flamingphoenix824]

Space between stars isn’t as empty. When galaxies collide their gases and interstellar medium will compress and heat up, including the galactic halos. Perhaps it will spark a new active galactic nuclei and sterilize billions of worlds.

[@johnaugsburger6192]

Thanks so much, I think this episode is my favorite.

[@fred_2021]

"Our Milky Way galaxy will probably die in fire as it collides with Andromeda". Which is contrary to the views expressed by cosmologists. It would be good to have, at least, a simple explanation of the whys and wherefores regarding the formation of 'Milkomeda'.

[@mohammedhafiz7098]

The show is Just "Wow" A salute to Lawrence kuhn🙏

[@georgederby2908]

I've watched all of these physics documentaries and shows for years and years... I probably seen most everything made... And michio by far is the most proud to be a physicist. Each time I hear him talk he says the same thing... "We physicist think"

[@bowlingvanjapan4099]

Michio always seems so sure of himself. He’s a great speaker but lord kelvin also thought he and his cohorts had all the answers. I’m guessing we don’t even know what questions to ask to find these answers yet.

[@quantumpotential7639]

We know nothing. And yet, here we are .. hairless apes with nukes.

[@fabsouth6984]

This is one of the most fascinating and interesting topics that we can ever expect to experience on a platform like KZbin I am so grateful for this channel

[@deepaktripathi4417]

This is my favorite KZbin channel.

[@wayneasiam65]

Nice to hear Max admit Dark energy isn't very well known, if at all. Great vids!

[@destinygaming6514]

I can't sleep because of this show

[@floriath]

Gurth’s premise is the most hopeful. Infinite civilisations. And an infinity of them will know (or knew) as much as or more than we will ever know about reality.

[@forthemusic9875]

I think it's a fairly standard scientific concept that the universe will end. That doesn't necessarily include a multiverse, but possibly a more pertinent question is 'will existence end' and an answer can only really be speculated on if you suggest existence actually started. I hate to use the word dimension, because it sounds a bit like Doctor Who, but there is a sort of time dimension that trumps all the other dimensions and is at the core of existence. If we perceive it , however fleetingly, it massively changes our symbolic understanding of the universe (and of course all understanding can only be symbolic)

[@tedgrant2]

It depends on what you mean by "end". All the galaxies will eventually be dragged into their central black holes. Black holes "evaporate" and fill the universe with photons, according to some scientists. Perhaps the photons will "condense" into a singularity until it becomes unstable and go BANG ?

[@gothama7522]

Even we know it doesn't matter about the end of universe because humans are long gone by then, we still have strong desire within ourselves to know how it ends...

[@Triliton]

My theory and opinion aims towards the big Bounce. The universe has always existed, its born, it lives, it dies and its reborn again. After so many trillions, googly years this Dark Energy collapses, and so creates a new big bang. There is for me no reason to contemplate on why its always existed, why its suitable for life, it is as its always been. Im contempt with this. The variables or x amonunts of matter and gravity has been like this in another universe, and therefor its continued in a new born, the one we are living in. It will again bounce back, kickstarting a nw big bang event. Dark Energy as it seems now isnt uniform at all. So perhaps our universe isnt perfect flat either. Nature doesnt like perfection, nothing exists without some in-consistency. This can be adressed to anti matter-matter. If the Big bang was perfect, then there would be equally same amounts of anti matter and matter, and nothing would happen. But nature is with its flaws. Therefor we exist. Its an exciting time, we will discover more and more of our universe and our understanding of its end, birth or rebirth.

[@SandipChitale]

Seriously though, I think it cannot be stressed enough that these are very very very very very long time in future discussions. It has no positive or negative connotation with respect to timescales that we as human species have to worry about. Do not claim that physics is very bleak as it foretells what will happen in such a distant future. Remember it was same in the past near big bang - it was not a hospitable environment for humans then either. Lets not make a big deal of it. And if one wants to go there then let us discuss the concept of hell many religions talk about which are even worse. I guess even the concept of heaven is equally grotesue.

[@michaelburden5895]

Thats it, not doing any more dusting or housework be wasting my time !

[@colinjava8447]

No point brushing your teeth either

[@michaelburden5895]

@@colinjava8447 ha, ha.

[@rursus8354]

23:06: _"And that universe will be full of people"_ -- DAMN! And I who wished this one to be one more than enough!

[@rjgood1]

If the universe is destined to disperse into a cold death, then we have two options to explore. First would be to master backwards time travel. Then we could get on the merry-go-round of time in perpetuity and through each iteration acquire more and more knowledge and power. Secondly, we must explore the possibility of moving between universes within the multiverse.

[@MM-ue4ol]

Good but hussh ...reading this made me tired.

[@jettmthebluedragon]

So everything disintegrates ok ?😐 we say emterpy ALWAYS increases ok then how can the universe form from nothing ?😐and besides heat death vacuum decay whatever physics tell us we will end in ice ok then what about the beginning ?😐after all the Big Bang nothing heat death nothing like wht ?😐

[@enriquea.fonolla4495]

spoiler: we won´t be here. I mean homo sapiens. Whatever consciuos being is still alive, it wont be human (anymore).

[@thomanderson7981]

Yes, everything has a beginning, middle, & end. There is a reason for all things. We'll understand it all 1 day. A theory of everything will be the key.

[@Funnygalsproductions]

We live because a Black hole 🕳 got a lil to big some other dimension. Waterfall of gravity creating universes at close to infinite rate dropping to a lower and lower energy state in the multiverse. Was what I get out of this lesson today . ❤️

[@cvsree]

Anything bound to time has to end, so does the universe. But, our consciousness is not bound to time

[@publiusovidius7386]

lol. What narcissistic nonsense. Your consciousness is bound to your brain and your body. It is bound to time.

[@holgerjrgensen2166]

@@publiusovidius7386 Well, the consciousness work through the brain, it is not in the brain, like the programs is Not in the radio. It is a very extensive subject to go in further details, but just ask.

[@kevinolson7660]

There is no proof that we are conscious beings not bound by time. Interesting idea, but merely speculation at best

[@holgerjrgensen2166]

@@kevinolson7660 We are Not time, our thoughts is materialized consciousness, motion, time is 'the shadow' of motion. What we call thoughts has No beginning, and No end.

[@b.g.5869]

Gibberish. The universe is going to last a helluva lot longer than your consciousness.

[@badhombre4942]

The universe ends when KZbin runs out of videos.

[@afaintmemory]

chillllll!

[@2010sunshine]

Excellent

[@jschizoid]

That Cosmic microwave background beach ball the one guy has is awesome

[@ModestNeophyte]

I find it curious that we struggle with accepting the possibility that there could have been nothing instead of something, but we readily accept there being a "future nothing" at the end of the universe...

[@vanlookenroel7211]

Go within and you will find!

[@publiusovidius7386]

No problem. Bronze and iron age mythologies say humans are the chosen ones and will live forever. Most human beings believe some form of that self-serving mythology.

[@rumam1]

The theory of that the universe is some kind of simulation is the most interesting and plausible theory.

[@honeys.kapoor2838]

Consciousness means infinite, unite and unchanable state. That's why; consciousness never sleeps never changes. -- Walter Russell Always present state

[@enriquea.fonolla4495]

ever heard of the term "lose consciousness"? It is NOT always on.

[@Sempoo]

Can anybody tell what precisely is the main theme music in Closer To Truth series?

[@carlz28]

Dumbest intro music. Sounds like something a 4th rate nitwit came up with on a cheap, low quality Casio keyboard with limited sound effects. Don’t listen to it on a sound system with a subwoofer. The bass is ridiculously out of sequence. Literally ruins the next 26 minutes of the video.

[@PrivateSi]

Will unaswerable questions about the duration and size of the universe ever end?

[@enriquea.fonolla4495]

perhaps the answer to questions are infintely long to be responded properly

[@Minion-kh1tq]

I sure hope the universe never ends. But it really depends on the likelihood of continued human blithering. If an eternal universe means eternal blithering, I'm against eternality 100%. If we can find a way to stop the blithering...let it ride!

[@jahtea7849]

Conformal Cyclical Cosmology. Talk to Roger Penrose.

[@buckanderson3520]

My theory is that black holes drive expansion and the universe is cyclical. That the universe can only expand to the point where all relative motion ceases and everything has a quantum mechanical wave like nature. Then nothing has any definite position and so the universe can no longer be said to be expanding. Size no longer exists so the universe can be either be infinitely big or infinitely small. It doesn't matter because there's no way to measure. Which means that there is a possibility that everything is in the same place at once and no matter how unlikely it becomes a certainty with enough time, not that time or space exists at that point. Everything is everywhere at once. So the universe ends up right where it started in the same conditions it began with. Something interesting to point out is that before one universe came into being all possible universes were equally likely. Every potential universe existed simultaneously. A virtual multiverse.

[@digitalfootballer9032]

Will the universe end? I don't think it will, or if so, that another version will be reborn. Time and the universe doesn't begin or end, it just has always been and always will be, in some form or another. Why? Because something exists. And because something does exist, something MUST exist, and nothingness can't exist.

[@Xpress_Graphix]

What if the scientists think the universe is expanding, but not knowing that it’s actually just breathing, like other creatures, but because we too small one breath takes human lifetimes, then eventually when the universe contracts again scientists will be like “the universe is now contracting”, while the answer is as simple as a breathing mechanism! We just too small to see it.

[@lucianmaximus4741]

Kudos -- 444 Gematria -- 🗽

[@ShalomFreedman]

Is it 'We do not know and we can never know for certain?' or 'We do not know now and some unexpected future development might possibly enable us to know?'

[@mathematico6545]

YES

[@joelima3967]

The universe will never end. It will exist for eternity. Earth however, and humans will fade away. Humans are doing a great job of shortening our existence here.

[@afaintmemory]

could we learn to manipulate the expansion of a portion of our pocket with dark energy?

[@NoticerOfficial]

God damnit. Its been 9 hours and i cant stop watching these. I just thawed out a a ribeye fir two hours, cooked and ate it without turning thisnoff

[@tomkwake2503]

What doesn't make sense to me: So it does appear energy can be created and not destroyed, in fact it appears that from all these perspectives that energy is accelerating in our Universe and in all these other infinite Universes (multiple worlds, bubble universes, membrane universes)? But I thought energy cannot be created nor destroyed per the first law of thermodynamics. It sure seems like a plentitude of overflowing and infinite energies that are not been accounted for with all these physicists.

[@tomkwake2503]

@fynes leigh I think the term we are referring to is “dogma”, where authorities profess authority based on what was taught them, not from a place of true knowing, or knowing the limits of current knowledge. We students and thinkers can point these things out as “what’s wrong with this picture” in my humble opinion.

[@enriquea.fonolla4495]

virtual particles steal energy out of nothing for a very very very very short time. It's ok as long as they put it back.

[@anirudhadhote]

❤ Very good 👍🏼

[@thomanderson7981]

Don't worry. Be happy. Everything is gonna be alright. Just be calm & carry on. Stop racking ur brain about things u can't change!

[@mobiustrip1400]

Yes

[@Pegasus4213]

The question "Will the universe end?". Can only be asked, from within the belief that it is a 'physical' 'exterior' universe. Which is merely an adopted viewpoint.

[@robertjkuklajr3175]

If all that we see and all that we don't see is expanding into an infinity: one of an infinite possible infinities; all started from a softball sized particle; it baffles me as how there could not be an infinite creator. I don't necessarily beleive in a man (God) in the sky but, it's difficult to fathom a coincidence!

[@clam4597]

I remain restless.

[@sirbarringtonwomblembe4098]

If you're restless, how can you remain in one place?😁

[@alexg4462]

There are infinite ways for there to be something, but only one way for there to be nothing.

[@assholejohn]

4:15 for whom the knock tolls?

[@psmoyer63]

This universe is the perfect Factory for making empty space. The space in this universe has evolved one Universe At A Time. We will figure out how to make a new universe out of the empty space in this universe

[@Ouralbleu1]

April 2024 I think univrrse will never end just as it never begun. For me it cannot be otherwise. I admit that it seems absurd but for me a beginning and an end ARE absurd !

[@vhawk1951kl]

Depending on what you mean by the universe, of course not or what you have in mind neither is nor can be " the universe"-by definition

[@longcastle4863]

… 17:00 … so is the universe, the multiverse a perpetual motion machine?

[@maitiaru]

So far dark energy is just a code word for our ignorance. Lol.

[@eamonnmurphy1844]

Hmmm let me see, the Universe's (dark) matter energy is something that cannot be seen but gives structure and energy to all we survey. The Universe itself seemingly came from nothing, its origins are all powerful and complex! These powers seem to be: mandatory, all encompassing; complex and from another dimension. I'm not a scientist however, a quick glance at these facts points to a creative, all powerful inteligence which started and is the foundation stone of our Universe. Funny enough, Einstein agreed to this a while back.

[@garybalatennis]

Thank you for yet another challenging video in the series, this one exploring the “end of the universe”, and touching on implications for its meaning or purpose. Another all-star cast of world class scientists is showcased; though of course some have their critics. (Next time perhaps invite Steven Weinberg, Sir Roger Penrose and Sean Carroll.) Now my 2 cents. How will it all end, if at all? Big Chill? Big Crunch? Big Rip? The Penrose Conformal Cyclic Universe? Hindu Oscillating Universe? Turok’s Colliding Branes? Or simply Infinity - a final law of plenitude? Or something else we don’t know? I think some of the answers depend on these questions. 1. Do the mathematical equations underlying Eternal chaotic inflation theory eventually breakdown at some far distant future? Such that inflation is not truly “eternal” but closes. Woody Allen once quipped: Infinity is an awfully long time, especially towards the end. We don’t know how or if mathematics and physics itself change on those kinds of vast time scales. 2. Is the dark energy density, which generates the accelerating expansion of the universe, constant or changing over vast scales of time? (Tegmark’s point). If not, the universe’s expansion can slow or even reverse. 3. Is there more to the known human observable universe than we know? If there is a grander domain of multiple universes often known as the Multiverse, the rules and reality of that cosmic landscape would be unknown and could present a different ultimate conclusion than the one for our local or pocket universe. (Guth’s term). In the face of unknown answers to these questions, my tentative conclusion on the issue of will the universe ever end is this. I take the view that at some far distant future, our local universe will end. Why? I’m guided by the highly-ordered symmetry of our physical universe and human-made affairs (despite its seeming chaotic nature in many other respects). By symmetry, I think of matter/anti-matter; positive energy/dark energy; up/down spin of electron; birth/death; yin/yang; good/evil; right/wrong and so on and on. Beginning - End. Now what about the “ultimate conclusion” to the projected speculative and grander cosmic landscape known as the Multiverse? That is another story for another day. Many thanks again for your video.

[@quantumpotential7639]

It's a good analysis. When the under taker shovels on that last bit of dirt on top of my rotting corpse, that will pretty much be the end of the universe for me. Now let us pray 🙏.

[@markberman6708]

Yes.

[@MrTetsukobu]

The moment you die the entire universe ends, whatever you may believe or think is just your imagination while alive.

[@andreyusin3689]

Either way, as long as my eternal afterlife goes unaffected, fine with me.

[@shirk_slayer]

Deep time is deep to think about

[@clintborg1499]

Maybe dark energy has something to do with conciousness and our limited brains can't quite comprehend it. I also question what was before anything that's in our observable universe or even before the existence of anything 🤔

[@solomongrundy1467]

I'm starting to hear more chatter that the universe never had a beginning. They're saying that a big bang is just a cycle that the universe goes through.

[@FM-lo9vv]

Such heavyweight guests in this episode!

[@espabilastopkillingthenatu3242]

"there would be infinite new possibilities in an UNENDING COSMOS!!!...even if our little 'pocket universe' dissapears the plentitudes of all reality is literally INFINITE!!!...there would things going on in our universe or at least our multiverse literally FOR EVER in a volume which is literally infinite...even if all things will ultimately end,NEW THINGS WILL ALWAYS BEGIN!!!...the plentitude of all reality is so overwhelming.........."!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>.

[@fuhq5121]

The solution to the fermi paradox in one drunken ramble.

[@cripplingautism5785]

@@fuhq5121 how does what he said relate to the fermi paradox?

[@matiasd.c9949]

should of have added evil laugh at the end

[@gregeads6124]

Everything dies. Even the universe. I say die because I feel anything that has energy and substance is alive indeed.

[@Allworldsk1]

There will never be a time where there is nothing. Consciousness will disappear in the universe and therefore there will be no conscious beings who can ponder the existence of anything. All the stars will burn out all the light will fade all the distances will become too great and nothing will ever be perceived again.

[@grdsinclairgrd]

if it is a living entity definitely has to die at least to become something else different to our sense of existence. We must continue asking this questions.

[@amidaleahmad1324]

Although it is very interesting question but since we do not know how the universe started surly we can not find how universe ends 😇😇😇

[@jayabalamurugan974]

After 10^ 10^10 years even protons decays,photons loss its energy due to long travel in empty voids and disappears,dissolves, leading to nothing a cool,bleak, empty,perfect vacuum,but again comes to existence as probably happened,in a cyclic manner, it depends on dark energy value which may probably again takes the universes in to big crunch also. There are three possibilities either big rip, big crunch, or everlasting universe.humans understanding is very much limited.mankind shall not worry due to this large timeline of cosmos, they should worry and protect our earth which is a gift from realty/nature. Goldilocks zone is a gift from almighty energy. So live in harmony and love, as a earthlings. develop from babarinism to humanism .mr.robert is great questioner and ergs for better solutions/answers,fantastic .

[@MrJamiez]

If you think about it, you can't really experience "nothing" it's like sleeping, you don't feel those 8+ hours of sleep & darkness. It goes by in a blink of an eye, so you can't really experience eternity.

[@gabijasukyte238]

Yes it is unexplanaible but it will

[@fluentpiffle]

You cannot end something that never began. Study what the word 'infinite' means...necessarily!

[@davide724]

I suspect that most if not all human beings only care about the fate of the universe because of the affect it could have on the quality of life of conscious beings.

[@lassoatrain]

well you see it's like this the universe is expanding and accelerating because the universe is spinning. The vaccume is what creates a type of equilibrium that keeps us somewhat limited to how far we can expand. If the vaccume fails then the universe will probably rip in two some what like .mitosis you know cell division and there will then be two universe's where just a short time before there was only one.and this would explain the missing mass.

[@enriquea.fonolla4495]

most scientists dont believe the universe is spinning. There is no evidence of that., However, everything else in the universe does! Also we dont really feel earth spins at all. Maybe there something similar going on in the observable universe and we dont notice either because we dont have any external reference.

[@thomanderson7981]

Stop looking a gift horse in the mouth. Be grateful for the opportunity to have experienced all of this transcendent beauty and awesomeness.

[@mikes6281]

None of us get out of this alive!

[@daithiocinnsealach3173]

The description of the death of the universe sounds very much like the death of anything. Maybe the universe is expanding inside something else. Maybe it's dissolving into it.

[@mchapman2424]

Will it be possible for an intelligent form of life to be able to produce their own gravity strong enough to counteract the natural spread of the universe, thus keeping gravity in check?

[@nicolajhansen9814]

Yes one day In the furture millions of years from now OR They already now but don’t need to do it yet😎

[@rb1431]

we live in an infinite universe

[@kimsahl8555]

Every start = the universe start and every end = the universe end. The many ends (and starts) will go on forever).

[@AshokKumarPonnusamy]

WE will NEVER know THE ULTIMATE TRUTH ! thinking about it will just keep us occupied with time which again is an ILLUSION

[@brunoheggli2888]

I hope it dose right now!Nothingness is do peacefull

[@catherinemoore9534]

🎯💯. Meaning, purpose and reality confront the science of doom.... It's like being on death row. Soul destroying unless you believe in something extra, beyond physics.