Mindscape 300 | Solo: Does Time Exist?

[@LyleKeeton]

Your efforts to sit down and record these lectures are greatly appreciated.

[@ThePlebicide]

"Time is an illusion, Lunchtime doubly so" - Douglas Adams. Happy new year Sean, thanks for all of the amazing work and entertainment you provide.

[@subjectline]

Survival, Enquiry, and Civilisation: How can we eat? Why do we eat? Where shall we have lunch?

[@SupremeScientist]

I have to admit, I love the solo and AMA episodes the most!! 💯

[@danielcook1271]

Happy New Year Sean. Been a fan since I picked up your book 'The Particle at the End of the Universe' when I was just embarking on my PhD back in 2013. Your podcast is a gift to humanity.

[@bullphraugh]

They say nothing lasts forever, but I hope Sean Carroll's podcasts defy entropy.

[@AlphaFoxDelta]

Congratulations Sean, may this continue to grow long into the future!

[@KirkpatrickSounds]

Happy New Year and thanks for the continued delivery of excellent and thought-provoking content.

[@solidsneakie]

Hi Sean, I'm really enjoying your audiobooks. The many hidden worlds was fab. Looking forward to future releases :)

[@stoneman2023]

Happy New Year! Happy 300!

[@hopperpeace]

I love solo episodes like this! Thank you!

[@Buddhafan]

Happy New Year to you, Jennifer, and the cats!

[@RealQinnMalloryu4]

Happy new year Sean m Carroll .

[@mw-th9ov]

A surprisingly clear discussion of a topic that threatens to dissolve into obscurity. Oddly, the talk has an arc that corresponds to the theory of emergent time having a beginning and an end even when we don't know what the end will be.

[@konstantinos777]

Can I offer a "paradox" or mental exercise, please? Imagine a still image of a landscape. We are looking at it and we can "count time passing" or look at our clock, but the image is still. Now lets get into the image and be still as well. A field, a forest, the sky, everything is frozen, even ourselves. There is no point to count anything, where do we start, for how long do we count, what's the interval? There is no movement, no change, no time passing at all. Time is out of the picture, we have a clock which is also frozen. Suddenly a small ant starts to crawl on a leaf. It's so small that we can't even see it and it is even hidden behind another leaf. We take a look at our clock, it has started ticking!

[@keepcalm7453]

Wish you a happy and great new year ahead, Dr. Carroll!! ❤🎉🙏🙌🙏🎉❤

[@Quickcat21MK]

Happy new year. I am trying to wake up and time keeps moving despite me not waking up.

[@paprika777]

Time is relative, especially wake up time!

[@SisyphusGuitar]

re: The Big Bang, the multiverse, and fizz-ics In the beginning, a young god punctures a can of Coca-Cola Classic and begins to pour. The soft drink expands outward from the center of a SOLO cup until it reaches the inner wall. A frothy, foamy sea of bubbles has formed atop the drink: a multiverse. Short-lived, the bubbles start to dissipate and collapse upon one another. The Coca-Cola goes flat. The multiverse falls lifeless.

[@akirasthecat]

Weeeeeeeee........................d?

[@jasonanderson5980]

Sounds like a scene from "Allegro Non Troppo"

[@jean-philippegrenier120]

For me the solo episodes have always been my favorites :)

[@elizondorj]

A happy and productive year for you and your family! I wish you would consider getting an electronic blackboard for the solo episodes. You don’t have to appear on camera but it would be helpful to get the graphs and equations pictured to make understanding easier. I realize it is easier to edit a podcast with an static image but I think the effort of adding a few graphs or equations would be not much effort and it would be a great service to us. May we be able to listen to you for a long time!

[@gtziavelis]

Sean thank you for this solo episode // the more, the merrier // also getting a kick out of the "cosmic timepiece" video thumbnail with A.I.-drawn wobbly gears 😅

[@JETScaleModels]

At 65 years old- time has a different emphasis that what it use to. Long ago it was watching the clock at elementary school waiting to get outside to play- now- how much time do I have left. You know time goes faster when you get older. You know why? ...Because it's downhill.

[@markashman3725]

At 65 a yr is one 65th if your life at ten yrs old it's a 10th,hence the speed it goes by

[@rchgoodwin3863]

Solo and AMA is best. Happy new year!

[@techteampxla2950]

Happy new year Prof SC ! My favorite topic Time !!!

[@zenSutherland]

I learn so much and there's always at least a couple of laugh-out-louds. You teach with great humanity.

[@gizmodelacruz]

A good year this one is going to be indeed! May we all be healthy and well ☀

[@ajsmith7619]

Thank you so much. My happiness is emergent.

[@spaceinyourface]

Happy New year,,well done on the 300. ❤

[@TrueVe-eee]

Hello everyone welcome to the mindscape podcast! ❤

[@SG-kj2uy]

I like this intro

[@pavelavdzhiev833]

I've been waiting for this 🎉

[@AdrianBoyko]

25:21 In order for some sort of pendulum to oscillate the universe would need to have gravity and that would result in the energy of the pendulum diffusing through space in the form of gravitational waves. That’s an increase in entropy, so this example doesn’t work. Is there *any* example that works?

[@Robinson8491]

More fidelity in Page, Wootters and Albrecht kind of time evolution, than the relationist Connes, Rovelli evolution imo. I'm very intrigued by this talk, gonna research their papers! Thanks Sean!

[@HaHa-gy5vg]

Time is a discreet dim that appears continuous to us. Unlike spatial dims you can only move in one direction in time (like falling or sliding down a slope). You cannot 'climb' backward in time. Time is a one-way valve.

[@randomgamer19170]

I enjoy the AMA solo episodes very much !

[@dosesandmimoses]

Thanks Dr. Carroll! You rock!

[@georgewaters6424]

300 even numbered episodes hmmmmm, have you got 300 odd numbered episodes too?

[@Jackson09]

And they gave him a PhD....lol...jk

[@michaelavery1978]

I fell asleep to this and had a vivid dream Sean and I were discussing it. I periodically tried to interrupt him to say I wouldn't understand any of it, but he wouldn't let me! Generous but at the same time kinda rude. Lol

[@ParadigmShifter-zx5fq]

39:53 Sean famously does not like to kill imaginary quantum cats but is happy to step on imaginary chaotic butterflies :(

[@alex79suited]

Well done, Sean. Peace ✌️ 😎.

[@contemplatico]

Time is the existence of change. > Time = Change > Change = Existence > Existence = Time... Thus stating that: "Time does NOT exist." ... Seems like saying that 'Time does NOT Time' ... Or maybe rather 'Time is not Time'... Which seems somewhat meaningless 😛 - Thanks for all your great content Sean! You truly are a very gifted communicator... Clear, concise, articulate... and entertaining 😀 - Happy times in 2025!

[@destinyfive]

But try to find anything in existence equaling zero and it’s a fun part of math a social construct. Very real though.

[@oguzturk2007]

Thank you Dr. Carroll,

[@DrewTrox]

I like to picture time as the block universe undergoing a phase transition in which it coalesces on a string of quantum events. Like a bolt of lightning going from a branching sea of possibilities to a single bolt on the ground.

[@coder-x7440]

Time and space are the result of moving slower than causality. Photons don’t experience time passing. We should consider this, the true reality. What photons experience. Over as soon as it began. Blip. That is time. That is space. That is the entire big bang beginning to end. Blip. Fermions, as opposed to bosons (photons, gluons) experience mass, and with it, the effects of velocity as well when accelerating. So time then can be said to be this experience, for fermions, slow motion blip. Key phrase ‘slow motion’ as causality to a fermion is slow enough to observe. This is in alignment with the notion of time being relative to the observer. The ‘observer’ is the fermionic system. Waddling through causality with its chunky mass having self. Creating a relational network and accruing like the state puff marshmallow man as it goes along, eventually falling through the very wake of causality through the density of its heft. Symmetric reunification with informational infinity. And on it goes. As nothing does not exist. Empirically. Objectively. In accordance with known physics. Ergo, the closest thing to it, must be considered a strong candidate for the most fundamental quanta, something. Something but only just. As wheeler put it, it from bit. Spacetime, our universe, is the or a, collapse of infinite causal information.

[@sashakindel3600]

I do see how having a finite phase space and an infinite amount of time implies that you will visit states more than once (an infinite amount of times, in fact) but I don't see how it implies that you will visit all the states. How do you know that there can't be two states such that there is no way for the laws of physics to evolve one into the other?

[@topcat7365]

Happy New Year and thanks for the upload!

[@Joshua-by4qv]

Thanks for the false vacuum. Just when I was coming to terms with a super volcano and nearby gamma ray burst, I have to add this to the list.

[@AlessioAndres]

in my calculations, i had to stop time in order to have a residue that would collapse dimensionally, for pendulums to start ticking.

[@subhanusaxena7199]

A discussion on this topic with David Albert would be incredible please 🙏

[@Jackson09]

Yeah but all David would say is "Ok--Good"...lol..jk...but factual...love David too though.

[@victorgarciasilva8183]

Hi Sean Carroll, would it be possible to activate the automatic youtube audio transcription to spanish or another language, the whole world will thank you for it.

[@setaihedron]

The Boltzmann brain problem isn't really a problem because as many people like Seth Lloyd have pointed out, computational complexity from much simpler objects than brains lead to universes that compile out of a more basic kernel. So most observers would find themselves in a universe built from the most simplest structure, a big bang universe from the simple singularity.

[@rockbark2137]

If ya think eternity ain't 'bout endless time but more 'bout chillin' in the now, then livin' forever is for those who ride the present vibe. Ludwig Wittgenstein - probably

[@vertigoz]

2:09:35 What would be of physics without spheric cows! xD

[@SandipChitale]

The entropy increases from past to future, but that is not the cause of so-called arrow of time, even the thermodynamics arrow of time.

[@OBGynKenobi]

Time is the label we put on the ever changing and evolution of the universe. But there's no clock, there is just the constant change of the state of the universe from its current state, to the next. And we always experience the current state.

[@Getexposedddddd]

Babe wake up a new Sean Carroll solo just dropped

[@steliosp1770]

On the intro and i agree that it is becoming popular to call potentially emergent properties as illusions and i find that wrong as well BUT i do hold the view that consciousness IS an emergent property of the biological supercomputer that we call the brain in a body in the world and not an illusion (as you said) but when it comes to free will there s evidence to suggest it is an illusion and the brain just interacts with the world, processes and reacts to stimuli all the time so fast before we re even conscious of it (if at all in a lot of cases) and that makes free will an illusion in that sense but i dont think you can call free will an emergent property in the physics sense of the term anyway.

[@zulqarnainchaughtai]

A chemistry student majoring in organic chemistry wants to study quantum mechanics. Where should they start? Can you recommend some books?

[@SupremeScientist]

Thanks for the podcast, Dr. Carroll. Can you tell me whether ENERGY really exists? 🤔

[@Cammymoop]

is the clock ambiguity a problem? just because there could be other valid ways to formulate a time-like subsystem, we don't have to care about how the universe evolves from the perspective of any such subsystem except the one we are situated in, no?

[@coreyrachar9694]

Solo podcasts 4 lyfee!!!!

[@michaelblacktree]

I get the impression some scientists use terms (like time being "illusory") because they think it sounds cool. It's almost like click-bait.

[@bryandraughn9830]

People have a habit of parroting the arguments word for word while pretending that they came up with the idea. 1 step away from flat earth.

[@joshua3171]

the Definition of what a universe is looks like it needs to be defined, it seams like the ambiguity of words drives science more that results

[@desitterspace10101]

Just in time!

[@neps4th]

Is an interval of time; a time of time?

[@setaihedron]

At 1:34:00 Sean Carrol tastes the existential abyss inside the brain of Rick Sanchez . 😂

[@JrgenMonkerud-go5lg]

Yeah tgere is a spectrum of ways to have an infinite recurrance time or no recurrance time. From fundamentally dissipative physics, to an infinite set of false vacuas on top of each other, which would entail no recurrance time at all, nor well defined proper ground states and so on, and no min or max entropy for the fundamental mechanics.

[@deeptochatterjee532]

Kinda sucks that the state of the universe is static but we're still all gonna die someday

[@1qtaz]

If the universe was static, would we be here? How could anything grow?

[@Novastar.SaberCombat]

*Time is the only resource.* 🐲✨🐲✨🐲✨ "Before I start, I must see my end. Destination known, my mind's journey now begins. Upon my chariot, heart and soul's fate revealed. In time, all points converge; hope's strength resteeled. But to earn final peace at the universe's endless refrain, we must see all in nothingness... before we start again." 🐲✨🐲✨🐲✨ --Diamond Dragons (series)

[@360crazy3]

Cool. Thank you.

[@destinyfive]

Why does emergent equal not real? I am emergent from my parents. Hello!

[@1newme425]

Isn't time just a measure of change? It's a man made concept for us to quantify change, and for us to be able to order the universe. The universe doesn't care, we do. Edit: let's see if I'm way off :)

[@Webfra14]

Yes, time exists. But I have no time to explain why...

[@yaserabdulamir2706]

Can someone answer the question please.

[@DirtyLifeLove]

I wish time was fundamental. I wish there was matter that wasn’t invisible to perception, but I might be wrong.

[@1newme425]

I wish for ice cream, but I'm an idiot:)

[@OBGynKenobi]

Happy Three Kings/Baby Jesus day to those who celebrate it.

[@progenitus232]

What happens in to time in universe that is indifferent to time? The universe is mass and energy and particles all of which are cannot be destroyed.

[@michaelavery1978]

I think they should be renamed Boltzperson brains.

[@Abemelekkidane-or6cy]

Sean do you believe Ethiopian Christmas is tomorrow 😂😂😂

[@AndreluisMachadoloboesilva]

As arbitrary as dec.25....I actually prefer the Ethiopian bible rather than the 'king james' one...

[@alexanderg9670]

I like Wolfram's theory of time. Basically, computation of the Universe itself, fundamentally different than space

[@AndreluisMachadoloboesilva]

I have a real problem with the idea physicists use as 'fundamental', the smaller is more fundamental, and the rest is emergence, I really have a problem with that, maybe there's a way of thiunking about the universe in some terms that the galaxies and stars are fundamental and the particules in the standart model are emerging from the macroscopic stuff. ..

[@bryandraughn9830]

It's not an "idea" it's the definition. You cannot build a particle out of galaxies.

[@AndreluisMachadoloboesilva]

​@@bryandraughn9830 you cannot build galaxy out of particles from the standart model either, what about dark matter and dar energy? And yes, you can derive particles out of galaxies and stars, this definition is not complet and as far as I understand is not right neither

[@konstantinos777]

How can we say that "consciousness is an illusion" when an illusion requires consciousness in order to be a thing?

[@missh1774]

That's also called "Grace" 43:00. Not mercy, just intelligence in the form of grace. 1:10:10 🤲 Please let it be a real NON human made technology as an observation device of such things that is illogical now but logical near the horizon 🤭

[@immunitycorrupts3641]

Hello there kin Folk.

[@gavinbroughton]

Why does it take 2hrs 11 mins to hear if time exists? 🤯

[@1newme425]

If you play it at X2 it only takes 1hr 5 mins 30 secs :)

[@Typ-oh57]

Nope, it’s just another temp variable in Hilbert Space.

[@Rickristian]

Does time exist? Answer:, do planets and stars move?

[@kalebb6133]

I like wolframs ideas that time is basically the computation of the universe and that time can be thought of as a flexible grid or map that can store information states for “observers” edit: not necessarily wolframs idea ? but he seems to be popularizing it

[@konstantinos777]

Wait a minute, I mean, a nanosecond.. I listened to the whole episode, which was excellent, but now it has left me with a big question. I thought that you would have mentioned it, but I don't know if it is implied in some of those theories and doesn't need to be taken into account, but to me, it does because it is the most important thing: Isn't the IDEA of time based on the IDEA of the speed of light being constant and the highest speed that can ever exist? Ordinary matter can never reach it, only theoretically 99,9999%. Only "photons" have the "privilege" to run with the speed of light and this means that for photons, time does not exist. If time does not exist for light, why does it exist for non light? c is constant, it is certain Km per second.. everything above goes "backwards" in time. What if there was no light? What if stuff can run faster and much much faster than light, but they defy any frame of reference of ours to even begin to imagine them?

[@andrewgrandfield7214]

The Iverse is the story you see in your mind. The Un-Iverse is everything else.

[@1newme425]

I cant stay long i haven't got the time :)

[@jasonshapiro9469]

I FREAKIN HATE ENTROPY AND EVERYTHING IT STANDS FOR!!! Now that I know what it is.

[@RDawson-q6m]

300 👍

[@yaserabdulamir2706]

Yaaaay

[@MAF-08]

❤❤❤❤

[@pandoraeeris7860]

Time is a partially unfolded curled up spatial dimension. All dimensions are actually spatial - but some (our familiar 3D universe) are 'uncurled' and some are 'curled' up. What we perceive as 'time' is an unfolding spatial dimension that is somewhere between curled up and completely uncurled.

[@bryandraughn9830]

Really?

[@brendabeamerford4555]

Time space space time squared is quantum light color sound in Living Infinite intelligence all mind 369 angular momentum creating our 1 through 7 infinite octave time dimensions of which we have just barely entered 4th dimensional time zone as I was 12 minutes after 12:00 December 12th 2019 hence the reason for the seasons and the shaking of the Mind Body Spirit three lives above the heart three lights below 7 sum say I am unique complete individual Immaculate Conception from First Lite free will our Eternal Birthright based on the strength of our Quantum field of play TOE

[@DirtyLifeLove]

I no longer enjoy these “science” shows as much. Too many theories about what Universe is and conflicting findings. We think we know there must be dark matter, but do we really. Same with Genes, they were suppose to be blue prints , but they aren’t.

[@slimdylan]

Could you elaborate on what you believe to know about genes not being a blueprint? It's 3:36am (or is it?) and I find this statement intriguing.

[@luckbox360]

Trumps legacy will echo through time in eternity, timeless

[@mitchkahle314]

Time is one of the human senses. It is a useful way to coordinate with others. Most animals, I would guess, do not have a keen "sense of time", but instead rely on circadian rhythms that align with the natural world. Unlike the clocks humans have created, which are arbitrary inventions that have little or no basis in nature or reality.

[@bryandraughn9830]

Clocks aren't real?

[@mitchkahle314]

@@bryandraughn9830 The measurements are arbitrary, what is a second? a minute? a week? a month? made up stuff, that’s handy.

[@42Goatee]

...get a proper job...

[@ArchieLundy]

Channeling Gerard Butler: "THIS IS MINDSCAPE!!"📡🔭⚗🧲🌀