Time Since Einstein

Albert Einstein shattered previous ideas about time, but left many pivotal questions unanswered: Does time have a beginning? An end? Why does it move in only one direction? Is it real, or something our minds impose on reality? Journalist John Hockenberry leads a distinguished panel, including renowned physicist Sir Roger Penrose and prominent philosopher David Albert, as they explore the nature of time.
This program is part of the Big Ideas Series, made possible with support from the John Templeton Foundation.
The World Science Festival gathers great minds in science and the arts to produce live and digital content that allows a broad general audience to engage with scientific discoveries. Our mission is to cultivate a general public informed by science, inspired by its wonder, convinced of its value, and prepared to engage with its implications for the future.
Subscribe to our KZbin Channel for all the latest from WSF.
Visit our Website: www.worldsciencefestival.com/
Like us on Facebook: / worldsciencefestival
Follow us on twitter: / worldscifest
Original Program Date: June 13, 2009
MODERATOR: John Hockenberry
PARTICIPANTS: David Z. Albert, Sean Carroll, Fotini Markopoulou-Kalamara, George Ellis, Michael Heller, Sir Roger Penrose
John Hockenberry introduction 00:00
Participant Introductions 04:15
"The World is a Stage" space and time. 08:05
A brief history of comprehending time. 10:38
Time and Space post Einstein. 14:14
How is Einsteinian relativistic time fitting in to modern science? 21:29
Can there be a nondeterministic future independent of time? 32:30
The arrow of time and its problems with science. 37:14
Time on the quantum scale 49:55
Is an expanding universe necessary for time as we know it? 01:05:15
Does time confer generous gifts for those who wait? 01:14:42
Is time discreet, can it be stopped and can we define "now"? 01:17:28
How fast is the universe expanding and how does that compare to the speed of light? 01:24:29
Are we entangled with time and does that effect the universe being deterministic? 01:26:50
From a view of outside the universe, viewing someone trying to get to the center of the universe would be difficult because the universe is expanding faster that the speed of light? TRUE OR FALSE? 01:30:55

[@WorldScienceFestival]

Hello, KZbinrs. The World Science Festival is looking for enthusiastic translation ambassadors for its KZbin translation project. To get started, all you need is a Google account. Check out Time Since Einstein to see how the process works: kzbin.info_video?v=d5G90ovdqmk&ref=share To create your translation, just type along with the video and save when done. Check out the full list of programs that you can contribute to here: kzbin.info_cs_panel?c=UCShHFwKyhcDo3g7hr4f1R8A&tab=2 The World Science Festival strives to cultivate a general public that's informed and awed by science. Thanks to your contributions, we can continue to share the wonder of scientific discoveries with the world.

[@louishutchinson1458]

Qq

[@hayleyjackson5827]

¹

[@rajrishi4374]

,

[@rajrishi4374]

, ,,, ,

[@rajrishi4374]

,

[@flugschulerfluglehrer7139]

Finally Sir Roger Penrose received the Nobel Prize. Congratulations!

[@flugschulerfluglehrer7139]

@Leonhard Euler Thx

[@1EliPrice]

I’m literally spending my Friday night listening to this discussion. Me 10 years ago would have never hung out with me now.

[@ketchup5344]

You ten years ago wasnt good enough to hang out with you now lol

[@bernieflanders8822]

I feel that

[@genesis_888]

Agreed!

[@genesis_888]

@@ketchup5344 that is most def true!!

[@gabriele1052]

nor would have me...looks pretty loolly ...ui....

[@hughfuve]

We should throw away the word "time" and simply use "change' instead. In this way we can discuss variable rates of change in different places of the universe. Then we can see things like gravity as simply changes in the rates of change giving acceleration in the form of space/rate of change. Then you can ask questions like, 'well what is changing the rate of change?' If it is simply that more energy in a space means things become more complex and the universe responds by slowing down the rate of change then many things become explainable.

[@jimjaspers2804]

Brilliant response that I can't believe doesn't have more likes/consideration.

[@genesis_888]

Yes!!! 👏🏼👏🏼👏🏼

[@simesaid]

It's change, and I probably should have gone to bed change ago, but surely there's still change for us to discuss appropriate verb forms, and the ontological utility of understanding time as simply "changeable rates of change", energetically changing.

[@nulfire]

I like this concept (whether it is correct or not) because it demonstrates a different way of thinking about time. To ask a question of this though is : what causes change? It's an aspect of the direction some thoughts I have regarding this.

[@Wightkitesurfer]

As soon as you say “rate of change” surely you introduce the concept of time

[@dilly-dolly9326]

Looooove these panel discussions, especially with the artistic interludes. The cosmos, quantum everything is inspirational to so many.

[@blackmetalmagick1]

Great debate, I thoroughly enjoyed it.

[@arekkrolak6320]

Great to see Michał Heller in such a panel, I really enjoyed his books

[@the.amazing.spatterman]

Woo! Penrose!

[@dougedmunds]

The discussion by David Albert at 39:20 is worth watching a couple times. The "arrow of time' or 'flow of time' is a metaphor.

[@danie7kovacs]

Doug Edmunds A metaphor is supposed to bring or displace an abstract concept in a more tangible form. This is not a metaphore.

[@nonya69]

Whether or not metaphor is the right way to describe what is he was saying about "flow/arrow of time", that part of the discussion is worth watching a couple of times. Although I do agree with @Dani that this is not a metaphor. He was not claiming that it was a metaphor. He claiming that we had no rational framework for conceptualizing "flow of time" with or without relativity.

[@AngelosPapadopoulos314159]

Great Debate indeed, but why is Sean Caroll not mentioned in the description of participants?

[@thecentralscrutinizerr]

Ticking away...the moments that make up a dull day. (add the next line)

[@sirvapalot]

love this kind of content , just don,t like being interrupted by adds although this one seems free of it, but thanks KZbin.

[@thecatsman]

Brilliant intro, quite brilliant.

[@AnantMall]

It was a pleasure to listen to

[@pronounjow]

This was a nice panel discussion. I didn't think I would watch the whole thing XD .

[@joekersh]

Your videos are great science is so cool and trippy

[@rippergamingofficial3128]

These kind of videos make me feel like I should write my.own theories about time and movement in the universe

[@realcygnus]

awesome vid ! Prof. Roger Penrose & Prof. Horace Slughorn are thE same species !

[@PerceptiveAnarchist]

thanks for this video

[@omarbriones2453]

Currently, I'm convinced that changes in time result from changes in energy, and energy is more fundamental than time. Without a change in energy, there's no change in time.

[@stevebutrimas9972]

These brilliant people are indicative of how space/time is not yet understood even by our best.

[@dennisgalvin2521]

Sorry but they're not the people for the job, it's like having a bunch of dentists trying to make breakthroughs in neuroscience.

[@davidash80]

My favorite quote here about time from the theoretical physicist being, if somewhat paraphrased, about putting a black hold near them and the comment from the moderator not being heard and not seeing photons of light to see him even existing

[@pacajalbert9018]

určite čo si stohu pamätám tak som mal veľmi teplé srdce ♥ ktoré asi to zdvihlo

[@JamesToupin]

Very interesting discussion on the different views of time. A Theory, B Theory, and a mix of a few others. All in all, time may be the most mysterious of all the dimensions concieved.

[@AnantMall]

what a lively host and amazing panel!

[@DWHarper62]

Hiceknloper was annoying...

[@bryanpinto4051]

please stop clapping into ic. otherwise outstanding

[@spnhm34]

It seems that the discussion is limited by consistently putting time within the context of human consciousness. It’s hard to know to what extent this is a grammatical necessity or a real picture. To have an objective discussion about time, we have to make clear and distinct the elements that human perception could interfere with

[@datboidominican]

The term that is the 'future' is one I strongly believe is interfering with learning different notions of time and the world. We cannot pause time. The arrow of time as they mentioned looks to be going in one direction and that we are measuring it in a closed system. In a sense, the future is a progression of probabilities and the future CAN actually be predicted, though it will have to be concluded by attaining many different variables. Like our probability of being involved in an accident, the roads we choose to drive, our own relative system of time with factors such as car and our mood, and the system of others would align a better conscience of probability.

[@timshultz3168]

I personally believe that like the double slit experiment, time is a construct of the observer. If we didn't make the observations of day to day life as this thing called reality. It would be hard to believe time would even exist.

[@ferdinandbuss9859]

Watching from Sacramento California. Bbmsara.

[@Sidekix9o]

Time and Love are the only things that double when shared.

[@ahsanrubel2869]

Congratulations penrose..! At last you have been recognised...

[@kamicheung4021]

So beautiful

[@apburner1]

Is entropy really the progression from order to disorder, from organization to randomness? Isn't the end result of complete entropy a perfectly uniform state where there is no randomness or variation?

[@carlosleiva]

Does any one know what book is the moderator reading at the beginning?

[@LaChrisTube]

Carlos Leiva I dont know, but did you find the book?

[@robertstj]

Carlos Leiva. The Collected Poems of W.B. Yeats (1989)

[@carlosleiva]

Wow! Thanks! I'm really very grateful.

[@Arazmithin]

I think the kid in the blue shirt just described the effect of time on a universe. By definition being outside a universe escapes you from its time.

[@angelaparaski]

Understanding “Time” Is going through Dimension!

[@johnlameelk5339]

Watching a debate devoted to time, that occurred 11years ago, adds a dimension to the interior dialogue one naturally has during such exchanges of ideas. Is it real, or is it Memorex? As a Native American, I appreciate the flow of time in a manner that seems different than society at large. To me, the eternal now seems much larger and more encompassing than the past, which is limited in scope. And the future is even more narrowly defined, like a microscopic cone that is limited to things I mentally select as likely targets of inspection. This happens in spite of the fact that I know many other events and destinations should be available. I simply lack a reference from which to launch my focus, as in more information about that future is required. But that view is only a single aspect. Ideas, which seem to me to be projections of the self, appear eternal. The debate here, while 11 years in the past, is in my present, and is likely to be in someone else's future. But the ideas, though some have since been modified, remain as vital as when first uttered in 2009. (Vitality is not an property of correctness, nor the reverse.) And each time we bring this discussion forward to a new present, it is both past and present, to our senses. Our mind observes both as present now, though we can mentally tag the debate itself as older than our subjective now, but we have to make that effort, or it de facto becomes now. Therefore, it seems to me, that I the person, lives outside of time, choosing the place of self in the now only as a convenience to my corporeal body for its utility as a point of influence on the line of time recordings. It's my point of access. To me, having grown into awareness with this system, there is a significant amount of bleedover from the past and the future. And this apparent phenomenon therefore enlarges, and perhaps distorts, my present. The bleedover effect is strongest from the past, because it is able to also be solid in the now. The same effect from the future arrives in a more amorphous manner, such as anticipation, dread, desire, etc. Though more solid insights are occasionally available as well. Should we someday acquire a more firm grip on this greased pig called time, that runs amok with our senses, we will become citizens of eternity.

[@debrajames6954]

John Lame Elk Giggles 😆😁 It’s Memorex! We have access to all these studies BUT seems you and I must come from a more sophisticated and more privileged type of money dare I say 😧

[@HawthorneHillNaturePreserve]

I love listening to intelligent minds!

[@lj32920]

It seems to me that there would be much less confusion if time as we experience it was called time, and the time used in physics used a different word, or maybe a phrase, such as Event Passage.

[@dennisgalvin2521]

You're onto something there, what we're perceiving as the passage of time is just he passage of events, primarily the passage of the day and year.

[@tamir8501]

1:21:18 If I am particle sized from the face of a giant, would the quantum wave function change and would the uncertainty increase from the giant's perspective? Would it be the same as us, humans, only being able to measure the position of a particle with probability? If so, would it be fair to say that nothing has more entropy than anything else? Or that it's relative?

[@ShivamPhysics1]

Start watching this program from 8.00 minutes.

[@SnaFubar_24]

TY that helps

[@danie7kovacs]

Careful not to touch some culture as well.

[@bhavikyadav7495]

You mean 8:00 ,😂

[@Hackanhacker]

its not like nothing was said cmon 8 min on 1h30 and some is not big ... impacience lol

[@funnymomemts790]

I have a simple question. If I drink a cup of coffee at a specific time and repeating it on multiple days then can we define spacetime for such days? They look identical unless we add a specific date. While mentioning spacetime why date dimension is ignored by Einstein or am I missing something? To me a moment in spacetime looks meaningless without a unique date that contrubutes in defining a sinple unique moment. Thank you. Riz

[@KipIngram]

1:20:29 - Hold it. How does Many Worlds dodge nonlocality? One can still do Bell experiments under a Many Worlds interpretation, and one can still demonstrate correlations between "here" and "there" that defy Bell's inequality. Can someone elaborate on this?

[@danievdw]

33:19 ...her answer should have been "superposition"

[@ecb8252000]

People like to ignore the fact that we are moving at the speed of the earth + the speed of the galaxy at all times. I haven’t ever heard that number mentioned as our individual speed. When referring to aging and time passage, Is our relative speed to the earth all that matters? That seems to be what everyone refers to. How fast is the dark matter traveling. What is our relative speed in reference to dark matter? What is the effect on our molecular composition by our relative speed in reference to the sun and the black hole at the center of the galaxy?

[@ferdinandbuss9859]

Watching from Sacramento California. Bbmsara

[@MultiMcClelland]

I have question about the two entangled particles that has always bothered me since time heard this set of reason it goes as follows. If two partials can be entangle how certain one be that particles are the same two particles one started which later measured. The reason goes like this as the distance increase the provability that the starting two particles will entangle with other partials goes thus one has no certainty that one has the same two partials that measured at the final measurement are the same two particles one started with in the experiment? If this is true then the uncertainty increases with distance that one has same two particles one started the experiment? Is this true or false?

[@mannyespinola9228]

I love this meanderingly long and wonderfully exotic waste of time. Thank you for this video.

[@peteedwards8439]

It is interesting that at the event horizon time is said to come to a stop, and beyond the horizon time changes to a space, according to what we are being told...that suggests time becomes a place, allowing us to pick the location...but then we have no time within which to pick the location...so where does it go...or more to the point where do we go...what is our location in time and how does that appear in space. If we approximate will that be nearly right enough to give us the solution?

[@byurBUDdy]

Pace. Seems people forgot that we use to measure distance and time with our steps. Some dancers are said to be 'light on their feet'.

[@mathdebaterclub]

Fotini Markopoulou-Kalamara is a qt3.14

[@lt4954]

If there is google of particles, there are googles of combinations. So ones started, it can't be finished. It even loks as only 'time' could catch time (combining). Are limits existence?

[@jodyalbert3869]

is it the speed that you are going that slows down time? or the increased mass that you gain by increasing speed? \

[@trakdavis7499]

Agree wholeheartedly with ktx49!

[@enlongchiou]

Einstein's ER=EPR can explain QM by vacuum energy ch=2*3.14*gm^2 which's solution of GR.

[@kokohero]

To say that the arrow of time is fixed because we cannot move backwards is not necessarily correct. Play with this idea; say you can change the arrow of time just by wishing so. So everything is happening backwards, then for some reason time changes direction again to move forwards, there is no reason you would be aware that you had just experienced the backwards event or that you had experienced the same event before as your conscience would move backwards with time thus being erased. Therefore there would be no way telling whether we actually do change directions in time every now and then.

[@noegojimmy]

My question would be: Since they talked about beginning of space/time, how does that corelate to presumption that we live in a multiverse? What is between many universes? Is it space or time, is it nothing, is it space/time, is it infinity? Different universe different laws. But could all those laws derive from some multi universal principal? Is time universal property for every universe, just that it behaves differently...?

[@roberttrain3169]

The idea of the big bang theory a big explosion of all the matter to make billion's of large Galaxes and seeing pictures and doing no damage because of being so far apart in light years away. And Galaxes are in groups in different areas making it impossible for a Big Bang . This idea was created by Edgar Allan Poe 1809 to 1849 America Writer. He was interested in astronomy looking in the black sky and seeing little stars and thinking of it started . Having no idea of how it happened maybe something blew up that was very big mini little small pieces became the Stars we see in the sky even planets where bright lights like stars we could not see color the dark sky we know live in a time of street lights that do not make a dark sky at night I do not know where Edgar Allan Poe lived and where he was the spot taking the Stars to his mind being a writer he had thoughts I'd like to write them down and maybe to tell the story because that's who he's is Edgar Allan Poe we wonder where River start where big mountains have snow and the biggest mountains are only five miles high in ancient times the Milky Way was a woman arched over the sky milk came from her breast and dots of stars the Milky Way what's our universe became our universe we still call it the Milky Way from the Egyptians they have drawings showing this God created many worlds it is sad that our world was one of the worst because of people do not get along and are not kind to each other with love and understanding that they are different have different languages God thought they tried to make a Hightower to reach heaven but what they were using where clay bricks and would have fallen down because they work made of granite very hard Stone stronger the higher weight we make tall buildings made of steel framework the new ones we make now in New York are very thin built with floors with no windows to let air to pass through so that the tall buildings will not blow down

[@noegojimmy]

@@roberttrain3169 Nothing blew up at the Bing Bang. It just expanded. Universe is actually very uniform and simple at the glance. It all fits like a glove and if you take step by step back you come to the intesimaly small point. There's no fairytale here. Just logic, proof and hard science.

[@toby9999]

@@roberttrain3169 How does any of that odd mix of myth, legend and nonsense relate to reality?

[@soundmachinesid]

sooo, when you see something its a reflection from a light source. light travel fast but still takes time. your eye balls and your nervous system to you brain an back takes time. put both together time has been done. so your present outlook is a memory from the past . same with thoughts is memory of your eys past memory.

[@pauly362]

This means that we never experience now through sight.

[@jefffarris3359]

@@pauly362 exactly

[@REDPUMPERNICKEL]

@@jefffarris3359 or ever as Time is a concept only!

[@darwinlaluna3677]

We r all connected

[@letsif]

Perhaps we first need to know what energizes energy, (the big bang?) and if this is the case, time is emergent and consistent with the second law of thermodynamics.

[@brianflannigans5874]

Shortest distance between 2 points is a straight line. BUT a voice can be heard miles beyond 🌎

[@darkenedlight4818]

If our perception of time shows there was a beginning as we experience it, then there is likely to also be an end as far as we experience it. So despite our radical advancements in the future, we will need to also figure out how to change our experience through time to exist in a timeless state of the universe in order to survive. If we simply reversed time for our own experiences, this introduces time travel paradoxes: would we need to avoid ourselves in the past as we continue to progress through spacetime, or would it not matter, and we can destroy humanity as it were and continue converting every particle of the universe into computable conscious matter?

[@ikaeksen]

Time before big bang maybe (initial condition):::: Something existed inside all of space, which was created by chance, then since it was so heavy, bounced into a single point and created the big bang?

[@richardcalf8337]

I see this event was quite some time back.

[@MrGOTAMA420]

this has been the best one of these that ive seen.

[@SmileyFace-_-]

I've always thought of time as a tool to measure decay.

[@gvardon]

The idea that the space between galaxies is expanding and the this expansion is accelerating could be considered a improvement to big bang cosmology. Perhaps, at one time galaxies were closer together but not packed into an infinitely dense space as the big bang theory postulates. Then slowly at first but increasingly faster over time the distance between the galaxies expands leading to the present separation of galaxies.

[@TlakaelelZamora]

Subtitles please!!!

[@thisistoomucheffort]

The presenter is a magnificent speaker, he truly is. Not a great walker but he more than compensates for that.

[@iain5615]

Well done for the statement that we do not know the reality and the ontologies derived from various theories do contradict, so we do not know what is true and we need to be open minded. Many prominent scientists put their beliefs ahead of what is known and give a completely warped picture to the public. Sean Carroll unfortunately is one of these scientists, he is a very good scientist but when he speaks to audiences he presents metaphysics as physics without explaining the biases of what he is stating.

[@funnymomemts790]

It looks like we live in a predefined time block, as we grow and get older we get into illusion of passing time and try to define as past, present and future. As everthing around us consumes time to reach us, we respond to past events eg light sound vibration stimulai and others observe and react to our past actions not realising the time lag and define it as present. Our past is what we have lived already and future is what not yet lived and witnessed. Kindly correct me if I am mistaken in my opinion about time. Thanks.

[@conorosullivan3795]

I prefer to think of 'time' in another word, 'processing' and also processing in one eternal moment, ask yourself the question, apart from physically looking older to others as you 'age' - do you feel any different, aside to life's learnings and experiences added to your collective mind intelligence, have you always felt in the now with yourself ?! Have a think about it as am sure you all have. Time is an illusion, a very good one, although it is not the way of Universe, do you see a huge clock in space? No... to understand eternity and time, you must first conceive that all is processing in the forever moment, whilst to be clear, yes we have memory, this is important in... yep.... processing... as also does our predictive sense of 'future', which becomes 'present processing' then memory, which is the residue of energy of whatever it is... still enjoyed this show as am sure others, felt to share this.

[@johnehagan]

sad that this video only has 10,538 views

[@tvnist]

When we discus time, we only discus ourself

[@NFGF61]

For those who don't know Caetano Veloso, he has a very beautiful song called Oração ao Tempo (pray to the time). Nothing scientifical but very beautiful indeed.

[@darwinlaluna3677]

We r all living in time, if u want to see the flow of time its just like the flow of water

[@brianbueno7837]

Congratulations to sir Roger Penrose for finally winning the Nobel piece prize!

[@heat_kraze68]

FUCK YEAH AMERICA!

[@heat_kraze68]

Uk*^ but we’re homies💪🏼😏

[@REDPUMPERNICKEL]

The Nobel pieces of eight.

[@mehdibaghbadran3182]

When you are alive, during your success time, yours is yours , and you can help the others, to go forward to the future, in present time .

[@troyyoung1121]

The notion of Before Time seems unanswerable without firstly observing all of the ingredients that were present.And secondly the action that occurred to the ingredients to make Time commence and go from stationary to instant inflation

[@troyyoung1121]

What ingredients would have been present ? What action occurred prior to the ingredients reacting ?

[@albertkalai8596]

Imagine you want to expand a point O in three dimensions point x,y,z. First you need energy to expand that point O, once you have expanded it in 3 dimension points x,y,z you have created time and expansion from one point to another point means motion, So SPACE ,TIME,ENERGY,MOTION are all one thing.

[@Troyster94806]

Even if time moved backwards we'd still see it at any given moment as though it were moving forward.

[@REDPUMPERNICKEL]

Yes! and because 'time' is a concept only. Seems to me obvious now but it took me a long time to realize that fact, to overcome a lifetime of unthinking assumption.

[@tomtailor7492]

1:04:06 ...crocs... '...'

[@artandminisbyvilma8116]

: )

[@darwinlaluna3677]

And the only thing we can do is just take r time with LOVE, PEACE, and FAITH

[@Electricmaniacforever]

A little thought experiment...is spacetime real, as i need no space to travel time, but need time to travel space... ;) Meaning that all we do, when we move is to travel time and create space in that same moment, like entanglement. That would also mean, that all we see, when we look at distant stars, is time past, that actually doesn’t need space to be in, as it belongs to something long past, maybe even our own past - in every direction we look out there. If what we observe is not space, could we travel there at all? This is the reason, why space expansion might be observed to travel faster than light, because light needs space to travel in and therefore must create space (which is only time) before it actually gets there, but somewhat in an entangled way, which concludes, that it happens in the same moment. Now, if time is something connected to an observer, and it expands differently for everyone, it makes sense, how we feel space expanding from everywhere to everywhere (we are not at the center of the big bang, but everything moves away from us). It’s just different timebubbles expanding, which have neo real barrier, like a bubble, but like our lives, connect and go through each other as all of time grows like some kind of foam, growing in time.

[@REDPUMPERNICKEL]

Or, Time is a concept only.

[@conundrum2418]

I have always wondered about the frozen lake of time theory. Some would thank that if you stand perfectly still then time should stand still but if you give it some thought. your particles are always moving and the world is always spinning so we are always moving. So what if you put some sub atomic particles in space and froze them to absolute zero would time cease and dismiss? We now that absolute zero is unattainable for their is always heat energy making particles vibrate, but if we could remove all heat and the particle no longer moved and the essence of motion was completely removed would not time itself be removed as well. Since atomic clocks meause the microwaves from cesium atoms, I wonder if we could find a way to send some cesium atoms into space and freez them to near absolute zero would we see a drastic change in the time of the frequencys. Just a crazy thought.

[@AchimDaffin]

read a bit about the Bose/Einstein condensate...

[@jiohdi]

if the universe is actually expanding, this expansion provides an obvious arrow of time, no current moment can be identical to any prior moment as the universe is always larger than it was... no entropy considerations needed... simple novelty.

[@brianbueno7837]

BAM!!!

[@surejuju9395]

Al Stewart: Time passages Buy me a ticket on the last train home tonight

[@piyushkashyap5487]

I think, considering an individual's consciousness, time can be looked first from his or her inner perspective, and second through his or her percivance towards the outer world matter. From inner perspective from person to person time runs at varying speed, which can be seen in the varying levels of energy and the personality depressions among us. But, still, these variations are bonded together through the second perspective, mentioned above as our percivance towards the outer world matter. This common dimension is one of the infinite dimensions of the time, which is explained by many physicists in the concept of infinite parallel universe. As far as one can see or understand from second perspective time runs in a constant incremental form. After 1pm we can surely predict that time would be able to reach to 2pm and nobody can stop or vary the speed of its progress in the normal conditions of our world. It is constant. We can assume that time is something that has a continuous definite path. A to B to C to D so on. Contrarily, our inner perspective of time is the only anomaly of our universe that has no predictive path. We can say that this path of inner time is completley personal to each individual. It can go to D from A or to Z. This unpredictability of our consciousness can yield many infinite possible and impossible thougths and many choosen infinitie action outcomes. For us time can be defined as the perceivance path that we choose and the remaining paths that we do not choose. The ability of predictiting what we would not choose out of all the options available definitely leaves us with the power of predicting the future. Moeover, Dark matter can also be defined through the nature of time. Dark matter is something that could have exisited in current time if time opted it to. It's something that we left behind that does not belong to this dimension, a dimension that moved forward. Our continuous variation in the consciousness, thoughts and actions in this manner define or act as a border between matter and non-matter. We can prove it theoretically as well. Decayed time of a uranium atom can be predicted. It is something that cannot accelerate or deaccelerate by itself. Therefore, time related to the matter is the same as the time of this dimension. If this point of view makes sense then this idea can help us in researching the dark matter and black holes from a very new perspective.

[@piyushkashyap5487]

This idea can be related in the string theory as well.

[@piyushkashyap5487]

On the other hand, if we look into ourselves, we feel that we have free will to choose the future but that's not 100% true, our free will also has its limitations there are few actions we would never do even if we can do. e.g. killing someone. Basically, at a time we act between very few choices, and these choices limit or define our future choices. so general relativity and quantum physics together can be seen acting together here. Quantum physics defines the raw material that general relativity shapes into something meaningful. e.g. our DNAs are the work of general relativity, but the formation of matter and their properties are defined by quantum physics. These ideas are different but work hand in hand. You can age fast or slow by controlling the relativity of the matter defined in your DNA but you can alter the matter's state also by working at the quantum level of the matter. I am sure that you can relate this to Einstien's notions of space-time fabric.

[@johnpavon799]

World Science Festival, has very brainy guess speakers, talking about Space/Time. Most agree that time travel is possible provided natural conditions happen at once twisting the net space creating a worm hole where light, energy, matter rotates in a funnel like a Whirl Wind or a Tornado were the true speed in the apex has yet to be truly known.

[@davidwilkie9551]

Time made of making, in Reciproction-recirculation, is Absolutely self-defining Quantum-fields condensation that requires none of the labelling schemes of Romantics, or Physicists with a possessive sense of entitlement because of they know that we don't. It's the New Age version of Pin the Tale on the Donkey, and if that seems offensive, it is only looking in the mirror of symbology and romance...

[@mishelleilieva9657]

I'd love to hang out with any of the people on stage, or in the audience or in this comment section and just talk about what is time!

[@HomoSapienMan]

After watching three of these lectures, my belief now is that time is not bound to one set of rules. within the limits of the speed of light, from which we observe the universe. Yes we have some ideas of the notion of time. I'm not sure if your aware of the thought experiment with the bouncing ball of light and how if it is in movement it takes longer to bounce to each side of a cube, this is our way of measuring that time ticks slower the faster we move. What about outside the speed of light? We can't conceive time outside this speed limit. It may be a different thing, How then would we measure it?

[@REDPUMPERNICKEL]

@@HomoSapienMan "the notion of time" is all and only what it is.

[@NiSR0011]

flowing time has to come back to same position when the period of contentious path of travel ends at or jammed at or defracts due to dilation of time

[@REDPUMPERNICKEL]

Time does not dilate but things do move different. because... Time is a concept only!

[@jasonwalters6329]

I think if we can clone anyone or anything…..we need to clone Albert, we need him now more than ever!!

[@majorutah2867]

Yay

[@md.fazlulkarim6480]

If Einstein is right that time passes slowly in high gravitational points than low gravitational points then age of high gravitational points are lower than low gravitational points. 13.8 billion years is not true age for all points of the Universe. Slow passing time is bending the spacetime more and more continuously in high gravitational points relative to low gravitational points. So mass energy bending the spacetime and time also extra bending the spacetime. Curvature must be increasing and gravity must be increasing. Am I right. Please reply.

[@frederickj.7136]

@ Md. Faziul Karim... No, by conventional interpretations of cumulative observations to date, particularly in light of the 'dark energy's' dominant position vs. radiation & matter in the present universe, a flat-to-within-0.4% + or - universe is evolving in the direction of *negative* curvature (i.e., hyperbolic space... a.k.a., something like so-called "Anti de Sitter" space -- "AdS"). This ending point at (finally) an equilibrium state (some 10^100 years hence) -- basically empty space except for ground state fields (!) -- is sometimes referred to as "the Big Freeze". The "Big Rip" is even worse, if you are acutely prone to excessive existential angst (see young Alvy Singer in 'Annie Hall', 1977).

[@NiSR0011]

the flow of time is fixed and never paused or reversed ,but time at any instance can be recovered from past at micro ,minute state of time

[@1982crippen]

two observers do not exist to eachother until they have causality with eachother. At the moment of causality they agree regardless of where in spacetime they are. Meaning that spacetime is not a 4D static event observers move through independently of eachother. Take GPS.(atomic clocks) even though spacetime moves more slowly farther away from a center of gravity, causality between the ground and a satellite agree even with all other spactime effects for all observers being completely different in relation to eachother . The future only becomes now at any point in space once all observers that can effect that point effect it. Hence the future is not already written. I really don't know enough about physics to know if this is a viable POV. Would love to know if it is/isn't and why.

[@piccadelly9360]

How should you understand if there isn't at all. There is no time . It's just the events that we witness. When we observe a child, we notice that it is growing and that we take it as time. If we isolate all the events we can no longer perceive time

[@debrajames6954]

Piccadelly Amen 🙏🏾

[@REDPUMPERNICKEL]

In other words, time is a concept only!

[@jennifermccarty1956]

So as time is differently perceived by asu. Then as funny as it sounds. Our time zones differentiate plus or minus hour depending on lactation. But a moving object takes up less space , dang my eyes just crossed.

[@DanBaughman]

I guess I'm simple minded, but I entertained by this stuff.

[@debrajames6954]

Dan Baughman If you’re entertained by this then this may be where you should focus on. The definition of being entertained by these things is viewed by me as what is defined as ”your true calling “. You’re (true self) is calling you to (physics). But you nor I were ever introduced to these type studies. So I guess We take notes and develop our own theories of these events of Our Universe. Continue your quest and keep watching because we’re learning for free!😆 Peace and Blessings to you and your loved ones Amen 🙏🏾

[@REDPUMPERNICKEL]

I found it slightly irritating 'cuz they missed the fact that Time is a concept only!

[@dangvietthang2487]

Time is a matter of Mind (illumination, imagination. illustration). They are not separate from each other. Time also is difference between things and animals, or human,...