Watch our full interview, "The Universe in 90 Minutes," with Sean Carroll: kzread.info/dash/bejne/poFo1a6mpJS7mZs.html

@jokrg

Жыл бұрын

Pretty cool stuff! I like the direction this idea was taken in the “Rise Of The Moments” books by Carl L. Gabriel.

@educatedguest1510

Жыл бұрын

"Theory is when everything is known, but nothing works. Practice is when everything works, but no one knows why. We combine theory and practice: nothing works and no one knows why!" Albert Einstein Sean Carroll have not read "Time Matters eBook".

@rafars2246

Жыл бұрын

We make up time in our heads to make sense of things we do every day, but time doesn't exist.

@alexgoslar4057

Жыл бұрын

There is a symbiotic relationship between consumerism and industrialization. But clean energy and green transition are not intrinsic parts of this equation because reversing the climate digression does not generate income. One way of integrating environmental issues is by considering the climate as a commodity that has its own fungible and tradable value. And convincing customers that the most desirable commodity is the climate and that climate currency supersedes the value of any other commodity.

@davidharrison8975

Жыл бұрын

Time isn't anything more than a human perception. A measurement between one event and another. The "phisics" of time is bunk.

I heard a really good time travel joke tomorrow.

@lunam7249

Жыл бұрын

i know, i laughed about it yesterday.....

@kevinbeazy

Жыл бұрын

Haha love it

@anuraagdhanik5110

11 ай бұрын

Finally I found you.. aren't you telling about the joke I told you 2 years ago?

@adamdel4

11 ай бұрын

I’m not going to get it.

@shanu7uday

11 ай бұрын

Please check your facts! I’m yet to tell that joke to you yesterday.

Sean Carrol is so articulate and masterful at summarizing big concepts to the laymen. His Mindscape podcast is a true gem.

@bobbeckstead8340

Жыл бұрын

Articulateness and masterful summarization are not discovery. They are the tokens of entertainers and con men.

@user-kz2qh6zd6m

Жыл бұрын

Hmmm maybe because Oxygen gives both birth and rebirth but also is a very volatile carbon element…meaning energy is not created nor destroyed. And we all know the term “oxidation.” What is that? Hmmmm oxygen, oxidation… hmmmm. So oxygen both provides life and at the same time kill’s biological material. we know when everything is crumbling around us. And you’re an idiot because there’s more than 3 dimensions and that’s the simple conclusion of moving a spacecraft from the ground to past the atmosphere. You don’t need to be a biologist or scientist at all when it comes to energy. We cannot create nor destroy it. Simple as that. Let’s not forget Trump saying “clean coal”😂😂😂haha I love it. What a fucking idiot. Let’s not forget there’s an entire county burning because of coal and it’s still on fire 30 years after. Sounds familiar right? “Anti-oxidation or anti-oxidants” hmmm interesting. 😂and what has the drug and food administration done ? Nothing to fix the problem we have. And when was that? Oh during the four year trump one time president 😂

@user-kz2qh6zd6m

Жыл бұрын

“Thermal equilibrium is found in a test tube” doesn’t have anything to do with real solar rays. It’s a fake truck republicans use because when solar panels are finally set up they do actually work. But so many of these asshole republicans have money invested in coal and oil (thank you bush 😂 you didn’t do anything)

@bobbeckstead8340

Жыл бұрын

@@user-kz2qh6zd6m You're blathering.

@bobbeckstead8340

Жыл бұрын

@@user-kz2qh6zd6m You gibber.

What I love about this video is how interdisciplinary it is. From starting with linguistics and breaking down the definition of time, to describing the sociological notions of time, shows how all these modes of studying offer some part of the puzzle that is understanding our universe. I was particularly awestruck by the perfume analogy, which I argue to be a poem. Utilising such a beautiful example to describe the nature of our world made me tear up, again emphasising the importance of literature and creativity in asking questions about our existence!!! Wonderful!!

I understood entropy so easy when he talks...if I had a teacher like him in school...I would loved to learn more.

@jesusbermudez6775

11 ай бұрын

Yes, I found his explanation of entropy quite clear.

When people say they don't have time ,they are always true ....they don't actually have time 😂

@willdesouza3968

Жыл бұрын

time has them

@EefLeaf01

Жыл бұрын

@@willdesouza3968 right where it wants them >:)

@wailinburnin

Жыл бұрын

I'm with Robert Hunter as rhythmically phrased by Jerry Garcia: "Where does the time go?"

@Sky-B14916

Жыл бұрын

@@wailinburnin time goes far beyond expectations 👀

@dennisgalvin2521

Жыл бұрын

@@wailinburnin Where does the time go go? "It's around in a circle shouldn't we know, the clock and the calendar tell us of it's way's 24 hours 365 days. So as for this mystery that's dumbfounded generations, it's just an illusion from the harnessing of Earth's rotations". Bruce Dillon.

I don't have time to watch this.

@jcpana060959

Ай бұрын

Lol

@conradlim9781

Ай бұрын

Underrated comment

@RaoSahabWakil

29 күн бұрын

😅

@GA-Vic

21 күн бұрын

Me also!😒

@saularroyo7089

15 күн бұрын

Unfortunately

I am a teacher and I tried to explain Time to them but they asked so many questions I ran out of time and the bell rang! Then, as they walked out, they got it!

@tokas-kb6rb

19 күн бұрын

Don’t lie

@billcook7483

8 күн бұрын

Yeah, like we believe you , right ?

i could listen to him talk forever. it's so fascinating and intellectually stimulating, yet easy to understand.

@michael-4k4000

Ай бұрын

I like Neil or Brian Coxs voice better

Best Teacher Sean Carroll.

@supernatural_forces

Жыл бұрын

Have you heard of Brian Greene ? See, 'What was God doing before Creation?' from the channel Rational Believer. Probably you would get something more enlightening. Though there's a flaw in this question, its just for conceptualization.

I love your explanation, Sean Carroll. It is a keeper. Personally, I am making difference between time and timing. While time is immeasurable, timing is within a measurable scope.

You make such lucid, clean, and clear videos. Your pacing, content, and imagery are pitch-perfect. Thank you.

This video is a fascinating exploration of the interconnectedness of time and entropy. Sean Carroll does an excellent job of breaking down complex concepts and presenting them in a way that's accessible and thought-provoking. The idea that time is merely a label we use to distinguish events is mind-boggling, and the discussion on the arrow of time and its connection to the Big Bang is truly intriguing. I appreciate Carroll's challenge to the notion that life is a fight against increasing entropy, emphasizing that life actually owes its existence to the increase in entropy. It's a fresh perspective that opens up new possibilities for understanding the emergence of complexity in the universe. Overall, this video has sparked my curiosity and left me with a lot to ponder.

These videos are so well made.

It amazes me how Sean Caroll can talk about such profound topics in such a clear way

@daleviker5884

Жыл бұрын

Yes, and if they make a movie of his life he should be played by Steve Buscemi.

I had a question very related to this a few weeks ago: "How could life have come about if the entropy of a system has to increase?" The answer I found is that the entropy of a *part* of a system can decrease or stay the same if the entropy of a whole system continues to increase. And life, really, as he said, is a system that feeds off of entropy, we are fine tuned by the edge of evolution to adapt to change and to overcome it, in a reasonably stable solar system with a constant source of energy and somewhat constant conditions.

@davidreidenberg9941

Жыл бұрын

Exactly. Entropy is always increasing ON THE COSMIC SCALE. That doesn’t mean that occasionally local areas can experience a decrease in entropy. Living systems maintain a low entropy state only because they interact with their environment. The real mystery is what caused the low entropy state to begin with.

@Trimmxthy

Жыл бұрын

@@davidreidenberg9941 Imagine the cosmic scale is just a local part of an even bigger scale 😅

@batouttahell454

21 күн бұрын

Is there a God in this?

@dentistrider3874

20 күн бұрын

@@batouttahell454 In any serious discussion of cosmology or physics there never is.

I know that time isn't linear. We just think it is due to the limitations of human perception. I occasionally have dreams that come true. I'm not talking metaphorically, or about deja vu. I mean dreams that are very brief, but clear visions of random future moments. Just long enough to get the layout of a place or part of a sentence. It's never anything useful, like saving lives or winning lotto numbers. And I never know the context or how long it'll be before it happens. Sometimes it takes weeks, months, even years. I also have memories of moments that apparently never occurred (just like the Mandela Effect, but in my personal life), and objects have either moved or vanished entirely. As someone who studies science, the fact that I can't prove or replicate any of this is incredibly annoying. It sounds like symptoms of schizophrenia, but all the therapists I've had over the years have said no. My current therapist has even suggested I've attained some kind of spiritual awareness, but I don't what to think about that. My theories are that 1) all events are either happening simultaneously, and we can only understand them in a certain sequence. Or 2) multiple timelines exist simultaneously and sometimes interconnect, but the mind is supposed to remember only one at a time. I just wish there was a way to test them.

Also - with the expansion of spacetime - is the entropy of the universe REALLY increasing? Is the expansion itself a byproduct of increasing entropy? Perhaps space, as a medium, can only accommodate so much entropy per unit of “density” and expands elastically when more entropy is dumped into it?

@tylercriss6435

Жыл бұрын

Entropy isn't really a physical thing, like you can't hold a unit of entropy. It's just a way we describe arrangements of things that do exist, like atoms and the changes between their relative states of energy. In this case, maybe it would be less the entropy doing the expansion, but more likely the atoms or the energy. Maybe!

@ddv2nine722

Жыл бұрын

You could imagine the box at 3:38 to be expanding, meaning that the distance between balls is increasing but the relative distances staying constant. Since entropy really measure your failure to predict the state of the total system knowing a tiny part of it, then by this picture it should be constant (maybe), we should keep investigating.

@kaibuchan

Жыл бұрын

I FEEL LIKE TAY ZONDAY, I FEEL LIKE TAY ZONDAY, I FEEL LIKE TAY ZONDAY, I FEEL LIKE TAY ZONDAY.

@wailinburnin

Жыл бұрын

I'm pretty sure there's a property of mathematical symmetry that would say that you can view the universe as not expanding and "everything" in it is getting smaller and losing its ability to interact with everything else. It's just more convenient to talk in terms of us being the static things so therefore the thing that we're in appears to be expanding.

@MrSatnavatron

Жыл бұрын

what about 'Stop engines' -- instead of speeding up - why not slow an object relative to the space time curve ? - multiplying the various speeds of galactic forces ( solar , galaxy , local group speed) we could travel much further than lightspeed if all those variables in "motion" are taken into account... cheers thanks -- send the Nobel prize to po box ....

Sean Carroll's mind takes flight, Unraveling time's mysteries, day and night. Physics' dance, a mesmerizing show, With each tick and tock, new insights we'll know.

The issue I have with a lot of these explanations is that the argument we have for existence is that we were very “low entropy” (order) when matter was spread across the cosmos, but then things became more complex when “high entropy” (chaos) and the evenness became unevenness in planets and creatures. That chaos made things that were, by their very nature, more complex, but that level of complexity requires vast amounts of energy to maintain in a stable order (low entropy). Since things move from order to disorder (second law of thermodynamics), you have to have some unique situation where disorder becomes order, you need some force pushing back high entropy to create a low entropy environment. We know the 2nd law is still in effect as if we leave a complex being or machine to sit, it becomes less complex, eventually non-functional, and then eventually breaks down into its simplest molecules. So what introduced the low entropy system, what maintains it, and how long does it continue unless something invests in it?

The big mystery is that the arrow of time is the same everywhere and that it never ever changes. So time definitely has a direction. If you look at a pool table break on a video you can (with almost 100% perfect certainty) know the direction of time of the recording. No one needs to tell you. Ever. That you cannot tell from a small simple quantum physics event does not mean that it is not there. As soon as chance comes into play it can only go one way. So why is that? Because that is just how the universe works, in every single cubic cm of space we have ever looked at. I find that fascinating.

“I know what it is, but when you ask me I don't.” Saint Augustine.

@dennisgalvin2521

Жыл бұрын

"I know what it is and when you ask me I still know" Bruce Dillon

“Time is an illusion. Lunchtime doubly so.” ― Douglas Adams

@thebeezknees

Жыл бұрын

Hammer time is real damn it.

Big think professional editing+sean carroll brilliant presentation= an absolute masterpiece

He seems, to me, to make sense of things that have really puzzled me all my (very long) life. I am sincerely grateful that he's spent so much of his time and effort to do so.

@JonnyUnderrated

Жыл бұрын

well im not sure he did it specifically for you Phil. But yeah it was cool.

@philjamieson5572

Жыл бұрын

@@JonnyUnderrated Yes. It was, as you stated in your well expressed, casual and throwaway style, 'cool'. I'm assuming that your comment was meant solely for me. I may be wrong with that assumption.

@JonnyUnderrated

Жыл бұрын

@@philjamieson5572 Your casual utilization of commas has thrown me for a proverbial "loop" , Phil. I was trying to ingest your verbage and je ne sais quois but they took me off guard and now I'm all messed up. But yes, I was trying to communicate with you Phil.

@suhail_69

Жыл бұрын

@@JonnyUnderrated what are you both doing here 😃

@JonnyUnderrated

Жыл бұрын

@@suhail_69 im trying to chill., our dear friend PHIL here is on some kind of diatribe again

Sean Carroll is international treasure.

Sean says the universe began at it's lowest state of entropy and has been getting higher and higher ever since. Entropy is defined as "a lack of order or predictability; gradual decline into disorder." But when the universe began forming galaxies, solar systems, suns, and planets, it actually became far more ordered than how it began. It just stared out as a mass of unorganized matter and energy, then organized itself into the structures we see today. This seems to contradict what Sean is saying.

@mccorkleee3375

4 ай бұрын

You’re misunderstanding entropy. Don’t look at individual galaxies and solar systems, you may look at the entire universe as a whole. You’re right, it initially started out as one glob (low entropy) and is spreading out and developing new celestial bodies over time (high entropy.) The matter on earth and in our solar system/galaxy has come from many, many dead stars and galaxies before us.

Big Think, You're so talented! I had to hit the like button!

YOU ARE CORRECT ABOUT SPACE-TIME, PROFFESSOR SEAN CAROL. I, TOO, DON'T HAVE THE TIME TO WATCH THIS, OR DO ANYONE WHO MATTERS OR DO ANYTHING! PERIOD❤

Unfortunately, the question of why we age has nothing to do with time but instead it’s a design issue.

@dennisgalvin2521

Жыл бұрын

Yeah, time is just a system that measures the process that makes us age.

@sixman9

Жыл бұрын

This is correct. Time is emergent and the measurement of the comparison of rates of change. Time is not an energy or force that asserts itself on objects. Milk does not got bad because 2 days have past, it is because of bacteria and heat energy, we are just able to expect a similar result, having previously seen a certain amount of days or hours pass under similar circumstances.

@bobbeckstead8340

Жыл бұрын

Thank you.

@bobbeckstead8340

Жыл бұрын

@@dennisgalvin2521 It measures the rate, NOT the process of aging.

@dennisgalvin2521

Жыл бұрын

@@bobbeckstead8340 To be specific, it measures he rate of the process.

Time is different than causality, but we use them interchangeably.

@fullyawakened

Жыл бұрын

No

@Mustachioed_Mollusk

Жыл бұрын

@@fullyawakened possibly

@daz97

Жыл бұрын

The general population does that with everything, and as a result we live in a world of people who think they know everything about everything, because they spent a day learning about it on some random videos lol But because they simplified it so much it completely misses the point... If your foundations of study aren't done correctly then your end result will be wrong. Time, for me... Is just the measurement of motion But I'm not an expert in this area, and I never pretend that I am... Shame no one else these days can say that about any subject at all, everyone thinks they know everything because they read about it in Wikipedia lol Or because a Liberal college told them it so don't question it just obey lol

@ddv2nine722

Жыл бұрын

If you think on flat spacetime then they are not So different; for two events on the universe to be causal with each other, there Must be a difference on time, but you must also specify how far they are separated. So causality is a property shared by events with specific time And space separations. If light can connect those events, then they are causal.

@EonsEternity

Жыл бұрын

@Daz this is basically what i find it to be as and when you really think about it the way we measure times with clocks the units of measurement are the tools themselves, the clock hands, and we based that off the sun, our rotations and revolutions around it and narrowed it down more but really we're just measuring change, we just measure the change of everything by using our constants for change, translating it like we translate imperial to metric, etc. How something so simple can also be so complex and amazing is just... amazing. I can't think of another word right now, but I just love the thought.

Daniel Schmachtenberger's talk on Emergence takes a crack at some of these questions.

I read Carroll's book From Eternity to Here, which I highly recommend. However, I'll admit I'm slightly confused by his overarching and unanswered questions: Why is entropy increasing towards the future and not towards the past? And if the answer to that question is the big bang, why was the big bang at a state of such low entropy? There is an episode of PBS Spacetime that potentially explains this (as I understand it, at least) as the volume of Spacetime itself actually increasing, and this gives rise to increasing entropy and the arrow of time. I wish I could see Carroll debate this point, or other physicists weigh in!

I just finished watching "The mind-bending physics of time" by Sean Carroll and I have to say, I really enjoyed his unique perspective on the subject. I found it fascinating how he was able to explain such a complex topic in a way that was easy to understand. I particularly liked how he delved into the concept of time being a "block" and how this theory can help to reconcile some of the discrepancies in our current understanding of physics. Overall, I thought it was a thought-provoking and enlightening video and I highly recommend it to anyone interested in the nature of time.

@Cosmo_P0litan

Жыл бұрын

Someone had a school assignment... lol.

@MrFlameRad

Жыл бұрын

100% a chatGPT comment lol

@bobbeckstead8340

Жыл бұрын

He "reconciled" nothing - you've been taken in by pseudoscience.

@Cosmo_P0litan

Жыл бұрын

@@bobbeckstead8340 Prove your statement.

@bobbeckstead8340

Жыл бұрын

@@Cosmo_P0litan What an inane challenge.

Time is fascinating. I worked the subway stations for nearly 10 years. From one end of the city to the other. Every so often I would notice the city would be saying that, "Today just flew by" or "The day was just dragging along." How can an entire city complain about the same time paradox unless it was effected by it. Maybe a time distorted bubble the earth passes through in its revolution around the sun. Maybe random waves of time distortion hitting the earth? Maybe they're randomly given off by the sun. Maybe they're from outside our Terran system and reach us in intervals. ???? Ti-i-i-ime, is on my side. Yes, it is!

@yan-amar

Жыл бұрын

I would rather suspect a bias of confirmation on your part, I'm sorry. For one if time stretches, then our perception of time should stretch with it, shouldn't it ? Well, maybe not. But there are other factors to take into account. The whole city is subject to the same weather, it's the same day of the week for everybody (monday VS saturday, the mood differs). Plus city-wide, nation-wide events affecting the mood. All the people taking the subway at the same time, probably have a common lifestyle (working day jobs), they are linked socially. Etc.

@michaelccopelandsr7120

Жыл бұрын

@@yan-amar that's fine. You don't have to believe me. Great part of this is, this "phenomenon" is reoccurring. Just spend a year or two in the subway. Rush hours are best. Stopping at every station on the line. From students to working class to business class. You get to hear how an entire city's day went. After a year or two, you'll see it, too. The pattern in the chaos. ;-P

@simesaid

Жыл бұрын

@@yan-amar while everything you say about social uniformity and cultural synchronicity is true, time _does_ stretch. Or to be precise, matter travelling through spacetime _shrinks._ But time itself does have elastic properties, beyond merely those of relative perception. As Einstein showed in special relativity, and as has been proven in every experiment ever conducted since the theory was published in 1905, how you move through space affects the way that time passes. Specifically, the faster one moves through space, the slower one moves through time. There is a very precise trade-off that occurs in order for the universe to maintain an upper-limit on the speed that matter can move through it - namely, 291,000,000 metres per second - the speed of light. Travelling at the speeds we do here on Earth the effect is almost unnoticeable, though for a few thousand dollars you can buy clocks accurate enough to see for yourself. At the speed that satellites orbit the Earth, around 27,000 Kph, the effect is strong enough that Google maps would be a useless app if the effects weren’t adjusted for. And should you travel out to Alpha Centauri at about half the speed of light before returning home to Earth again, you’d find that everyone back home had aged by about 40 years, while you had only aged 5. Einstein showed that time is personal, that there is no such thing as a universal time (as Newton had believed), and that it doesn’t even make sense to say that there is a “same” moment of time for any two objects in the universe. There’s a 5pm in NYC for you, but only you. Time is personal - the faster you move through space, the slower you move through time. Trippy, but absolutely true. Cheers!

@simesaid

Жыл бұрын

@@yan-amar I should have added that the shrinking and expanding component is called ‘length contraction’, when travelling at relativistic speeds matter experiences time dilation (the slowing of time), and length contraction (where matter is ‘squashed’ in the direction of momentum. Again, here on Earth, and travelling at our speeds, the effect is completely imperceptible. Driving a car on the HWY for example, will reduce its total length by about the width of a proton… Yeah, I wouldn’t worry about that one too much either :/

@Whoisreading

Жыл бұрын

I believe you. I'm far from your location, but I noticed the same thing, not in a subway but in live as a whole. I even got to name it, I call it "wave" or maybe a " low or high center of pressure" of some sort as in the atmosphere but of course not related to weather. I even avoided some corners or gas station because I "felt" as if a particular location "brings" a certain mood or even to happens. I though sometimes myself a bit superstitious for this but here you are talking about the same thing.

He brings up a lotta good points around Time but it makes me feel like there's enough open questions to keep "What is Time?" on the table.

@okgroomer1966

Жыл бұрын

It never left the table. We discuss theories on such topics, not facts.

A man with this much interesting information can pass his all day talking with himself without a need of anyone.

Wow the clarity of his explanation makes every concept crystal clear! Thanks Sean

@JonnyUnderrated

Жыл бұрын

so will you invest in shiney DIAMONDS or shiney GOLD Sir ?!??

Entropy is my favourite concept in the course work I have completed, order to disorder. Always stuck with me too. Great video so far

Thank you for your Time 😊

Thanks a lot for bringing such wonderful videos!

Sean Carroll is a great teacher!

@JonnyUnderrated

Жыл бұрын

Youre a good student Stan.

It is better to explain "Motion", since Time is merely one of the four dimensions of the 4D Space-Time environment. As I have shown, by looking at motion in the 4D sense, it makes Special Relativity(SR) so easy to understand, or even discover it on your own, and allows you to derive the SR mathematical equations in mere minutes, despite knowing nothing at all about physics.

The dropped coffee cup is something Stephen Hawking talks about in 'A Brief History of Time'. He says time travel to the past is not possible precisely because when we drop a cup it shatters into many pieces. We NEVER see it go back together in reverse. This was Hawking's analogy.

Sean is indeed articulate and helps us viewers understand a complex topic in layman terms. Would like to appreciate Big Think team's efforts in providing insightful KZread videos. I would request the team to also in simple terms shed a light on Newtonian Determinism versus Heisenberg's uncertainty principle. Thank you for your efforts.

Sean’s got a great style of communication. I very much enjoy all of his talks. Every time.

Sean Carroll is definitely one of the best science communicators around.

The steady increase in entropy, in addition to being beneficial as you point out, helps us keep track of cosmological time and explains a lot of the local features of time (aging, ice melting, etc.) That increase is something that takes place in time; not something that explains time. Suppose someone pokes a hole into a whole nuther Kosmos and the total entropy of this K begins to decrease as a result. We can speak of the time before and after this happened. Time's arrow survives.

It’s interesting that our point of view is time and entropy moving in opposing directions but they’re actually moving in the same direction.

@Slo-ryde

Жыл бұрын

Entropy serves as the barrier that ensures that we can never travel back in time!

I love when people sidestep questions by saying the question isn't the question lol

The intricacy of entropy renders the Newtonian world in abstraction. It’s a labyrinth. ❤

I'm not convinced of his point in opposition to the notion that 'life' inherently fights against the increase of entropy. He makes a good point with regard to how the process of increasing entropy is not necessarily the enemy of living systems in every regard, but speaking specific to the processes within living biological systems, they almost exclusively strive to reduce entropy within themselves. If this were not the case, injuries, infections and even aging would not be detrimental, because there would be no reason to expect that their results would have a negative impact rather than a positive one. For example, head injuries would be as likely to make you smarter as they are to cause cognitive problems.

He explained this wonderfully! Wow

Time is simply man made, as a unit of measurement. The eternal moment that has always existed and always will, is the brain twister !

@rasulsamad5860

Жыл бұрын

Well said my pops always told me that

@PaulJohn283

Жыл бұрын

It’s all been explained in the Bible you big dummy.

@ochjim

Жыл бұрын

Yep. It doesn't exist, except as a manmade construct - a way of imposing order on events/action in order that we can make sense of it all and plan our lives . . But it is based on physical constants of atoms in order to be accurate, and therein lies the problem when we move too fast - near the speed of light, when the properties of atoms are so affected that the constants no longer apply/are changed.

@BenJehovah6969

Жыл бұрын

​@Jim Hogg Not entirely true. It was conceived as a tool, but like any tool it could be used to build good and bad things.

@BenJehovah6969

Жыл бұрын

​@Jim Hogg Not entirely true. It was conceived as a tool, but like any tool it could be used to build good and bad things.

Beautifully explained. Loved it

Loved this. Such a great presentation. :)

Time exists in our brain

@kurtsydavis7517

Жыл бұрын

Where our brain exist?

@bobbeckstead8340

Жыл бұрын

Bingo! All of our daily experience exists in our minds. Only rigorous science can show us some of the approximations of reality that is independent of our minds

Time is our abstract explanation of change. It is our illusion.

@bobbeckstead8340

Жыл бұрын

More precisely, of motion - change is derivative of motion.

@Sam-we7zj

17 күн бұрын

@@bobbeckstead8340 no idea what motion without time means

Our brains can actually speed up time and slow down time depending on whether we are bored or sick or in harm. vs when we are occupied, having fun, relaxing, etc.

I think Time is the same kind of philosophical issue as Free Will. In the case of Free Will, most philosophers tell us it doesn’t work the way we think it works. But Time and Free Will are both human experiences, regardless of the underlying mechanism. When people say “there is no Free Will,” what they really mean is that your idea of what Free Will is isn’t actually how it works in the Universe (see Compatibleism for an idea of how it might actually work.) Similarly, even if Time is emergent and not fundamental, we still have this experience we call Time. If you are Julian Barbour and believe that “time doesn’t exist,” well the fact that “things change” is how we subjectively experience “Time,” whether or not the underlying physics is different from our intuition.

@batouttahell454

21 күн бұрын

I wish you spoke more about free will!

Great video, thank you! Love it, when BT is about science, not agendas.

I wish I actually knew if reaching a state of maximum entropy would mean that there is no longer Mass and therefore no longer time but I am extremely impressed with Roger penrose's conformal cyclic cosmology theory it's very impressive the way he was able to think out of the box on this one I really like the conformal geometry part also I wish I was better qualified to like it even better or just say no this is wrong

@phm19880

5 ай бұрын

I hear you. I have been impressed of sir Penroses ccc theory. It just is impressive, and like u said out of the box thinking, challenging other scientists in a good way. Overall I have been fan of his thinking and I have watched some of his lectures from yt. You have a great taste 👍🏻😅

Our use of time is all that is important.

Having a comprehensive understanding of the physics of time doesn’t make me any less late for work. 😂

Probably the best explanation of time i have seen in a video, amazing explanation from Sean and thank you Big Think for the illustration and platform

@ochjim

Жыл бұрын

Except that he didn't actually explain what time is . . .

@jesusbermudez6775

11 ай бұрын

@@ochjim Yes, he went on to talk about entropy and brush aside time

I love listening to brilliant physicists dumb stuff down for us, that in and of itself is an amazing feat 👍

@philjamieson5572

Жыл бұрын

Kevin Jenkins: Excellent comment. Well said.

@Diponty

Жыл бұрын

I love bots.

Just love this explanations ❤️

@bobbeckstead8340

Жыл бұрын

There are no "explanations" of time - you've been conned by a good performance.

Truly mind-bending ! After watching this, I'm a little more confused than I already am. Sticking with Earth Time , I guess...

I have a serious question: was it, or is it possible to change the human ability to stay awake and how long they sleep? Think about it, if billions of years ago you, stayed up for 3 days and than slept for let’s say 27 hours and kept repeating it over and over, would that have changed the way we sleep or count or days now? Or was it always perfect. Also lmk if this is already explained somewhere, cuz this is just right off the top of my head. And if this is possible, could we go for even longer periods of time awake?

@CraigMCox

Жыл бұрын

Our internal clocks are tuned to the earth’s rotation. If we lived on a planet with a 54 hour rotation, maybe we would sleep for 27 hours

@justicecarr7261

Жыл бұрын

@@CraigMCox that’s crazy to think about tbh. It’s just crazy to me that we just “ended up here” on this planet 3 billions years ago, or around there. Im just so curious and intrigued about our existence it’s hard not to think about that stuff.

@sanguinetenetsofnull9227

Жыл бұрын

I heard that in ancient times we did sleep twice for like 3 to 4 hours. Butt have to verify how true this is. But there's biology.. our health. If we don't get oxygen we will die within minutes. Similarly sleep, we won't die in minutes but we will definitely degrade and eventually die. Every body is different and everyone's sufficient sleep hours differ. Some need 6hours some need 8. There's even talk about being sleep deprived can result in brain condition that's more bad than post alcohol consumption. So don't skip sleep and drive.

@sanguinetenetsofnull9227

Жыл бұрын

And there is survival of the fittest concept as well. On earth atleast people with current sleeping habits or genes seem to have survived.

@chadwillett619

Жыл бұрын

With drugs I have gone 9 days with no sleep, on day 9 drugs didn't work anymore and I crashed out for couple days.

Understand that all moments in time past and present exist simultaneously and forever. Our perception of time moving forward is a function of our memory with the most recent being the strongest and the ones in front or us forgotten completely. It would be easy to code in a way that no matter where you are in time you would perceive it as the present.

Absolutely beautiful explanation. So when an object is able to escape the gravity of our giant vicinity toward another celestial sector with weak gravity (to do more,get old faster) or stronger gravity (to do less,stay as same age longer), that’s how time travel work, ie. Being away to deep space and missing out, either for long or short duration) of the time of those left behind in earth.

The entropy explanation makes sense until you think about the fact that we decrease entropy all the time in our daily lives and it has no effect on time, and certainly doesn’t reverse time. I like Richard Mueller’s theory from the book “Now: The Physics of Time.” Basically, his theory is that since spacetime is expanding, there is more time being created and we are always right on the edge between past and future and experiencing the new time every second that passes by.

@wtfserpico

Жыл бұрын

That is far more satisfying. I feel like he kind of lost the plot so to speak in his explanation here, and I kept waiting for him to bring it back around and then the video was over.

Is there any equations which state relation between time and entropy

@DaveBuildsThings

Жыл бұрын

Time and entropy are the same thing. The increasing entropy of our universe means there is change. With change, there is time. When nothing in the universe changes because we at the highest entropy possible, then time will cease to exist. Without change, time is not possible.

@bred3862

Жыл бұрын

@@DaveBuildsThings i don't think so bro as time is relative but entropy is not(maybe)

Enjoyed listening to this explanation of time and entropy that both started with the big bang. To state the obvious, both are also forms of organisation. 😊

I had to watch it twice before my brain processed the information. I got there in the end. Thank you for another wonderful video. 😎

Is this video mislabeled or am I just that much of an idiot?:) I definitely missed the part about "The mind-bending physics of time."

@peterdamen2161

Жыл бұрын

Exactly what I thought, and commented about. Carroll says around 1:21 min that what time is, is not a question. But he doesn't explain what time is. So I can only deduce that he dosn't know what time is.....

Time is what stops everything from happening all at once. Space is what stops it from all happening to me.

Perfume in a bottle 👍👍👍. The complex concept described in one line. Thank you Sean 😊

I think time seems to slow down when you're engaged in transformative activities. The constant changes in your environment fill your time with memorable moments, making you feel like you've actually made good use of your time. When nothing changes in your life, the relative change between one moment to another is small, and so your time speeds up. You've few moments to look back on and it feels like you've wasted your time.

@twotubefamily9323

Жыл бұрын

That's how individuals experience time - no relationship with space/ time whatsoever

@bokchoiman

Жыл бұрын

@@twotubefamily9323 Notice i wrote "seems"

Hi Mr Carroll hope you doing good You gave us the wonderful explanation about universal facts but not at all but I can help you out with rest of the answers that you asked in this video. Because knowledge has to be shared.

This video explained almost nothing. He simply restates simple concepts in a way that makes it sounds insightful. Reminds me of The Onions "Onion Talks" videos.

This is probably the best explanation of the arrow of time I've ever seen

The reason the world was lower entropy the further into the past you look is because it was created perfectly. When that perfection was compromised, thats the moment life began taking on higher entropy each day after day. Time exists because when the sun, moon, planets and stars were created, it took a distinct 6 days which is why we have time and are forced to live by that measurement.

Okay, but why did this make me cry?

"Time is timely because it's timed with timeliness." ---Albert Einstein

@satanofficial3902

Жыл бұрын

"Space is spacey because it's spaced with spaciness." ---Albert Einstein

@satanofficial3902

Жыл бұрын

"I see dead people." ---Albert Einstein

@dennisgalvin2521

Жыл бұрын

"Time is the rime time takes time to time time". Dennis de jong.

WOW! I actually understood what he was trying to explain!

I can't recall who said it but the reason we have time is because without it everything would happen all at once.

I'd have said there _is_ a special direction of space, it's just more scalar than vector. There is a limit to how small something can get before it effectively can't "be". Quantum mechanics operates on all scales, it's just that the more of something there is the more variables come into play. But as you measure smaller and smaller, eventually you hit a limit where no quantum wave can possibly exit without be needing to be divided; which by definition of "quantum" cannot be done.

Love this. Reminds me of why I enjoyed the movie Tenet so much.

We do have the ability to affect our past. The decisions we make today and in the future will have an effect on our future past. 2 years ago I had the ability to impact the events that occured 1 year ago.

That image at 0:17 is WOW! 😍

Thank you for this thought-provoking topic.

I think the thesis that entropy always growing up we should not understand so flat. For example, a seed accidentally blows away by the wind and falls it into the ground, the entropy increased. But when from this seed there a tree grows out of mud and rain (which is also a result of a high entropy) - this will be an example when entropy falls, but thanks to the high entropy around.

The transition at 6:30 is cold

Very well explained!

Time can be explained as a process of energy exchange formed by photon electron interactions. We have photon ∆E=hf electron interaction continuously transforming potential energy into the kinetic Eₖ=½mv² energy of matter, in the form of electrons as an uncertainty ∆×∆pᵪ≥h/4π probabilistic future comes into existence. All it takes for this to be logical is for the spontaneous absorption and emission of light waves to precedes absolutely everything that happens in our three-dimensional world.

Excellent video. Thank you.

This conversation shifted from time to entropy.

@garygevisser1262

Жыл бұрын

Total nonsense in my book. I see no relation between time and entropy. Best example of mixing apples and oranges but at least with apples and oranges you can eat them without turning your brain to mush unless that have been poisoned.

Time is the word we use to denote the number of events that repeat, such as the rotation of the sun around the earth, or the hands of a clock, or any other repeating event. Time is not a certain substance, not something that flows somewhere. Past, present and future - do not exist except in our imagination. What exists is a stream of change. The concepts of time, present, past, etc. - these are words for coordinating the interaction of people with each other, nothing more.

@abrahammulder

Жыл бұрын

So very very true! Time is an Illussion!!

@dennisgalvin2521

Жыл бұрын

A very nice brief explanation.

Learnt a new word today : Entropy! Thanks. I’ll try and use it now.