Why does time pass?
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- Опубліковано 19 чер 2024
- The equations of physics suggest time should be able to go backwards as well as forwards. Experience suggests, though, that it cannot. Why? And is time travel really possible?
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Why does time pass? It is a question so profound that few people would even think to ask it. Yet its effects are all around. Human beings live in a perpetual present, inexorably sealed off from the past, but moving relentlessly into the future. For most people, time seems to be something that is just out there. A thing ticking away in the background - fixed, immutable. Time seems to go in one direction and in one direction only. But physicists see it much differently.
One of the great minds who changed the way science thinks about time was Albert Einstein. In 1905 he published his special theory of relativity. In it he demonstrated that time passes differently in different places depending on how those places are moving with respect to one another.
Einstein showed that the faster one travels the slower time goes for the traveler. At the speeds at which humans move this is imperceptible. But for someone traveling on a spaceship at speeds close to that of light, time would slow down compared with its passage for people on earth.
There was another important aspect of Einstein's theory which he didn't even realize when he published it. That time was woven into the very fabric of space itself. Einstein used this insight to help develop his general theory of relativity which incorporated gravity. He published it in 1915.
With the general theory of relativity he demonstrated that massive objects warped the fabric of space-time. It is this curvature that causes time to slow down near them. Time slows down in proportion to the gravitational pull of a nearby object so the effect would be strong near a black hole but milder near the earth. But even here it can be detected. Einstein's theories had to be taken into account when the GPS system was set up otherwise it would have been inaccurate.
One scientist who puzzled over the directionality of time was Arthur Eddington, a 20th century astronomer who defined the concept of the arrow of time, based on observations made by the 19th century physicist Ludwig Boltzmann. The arrow of time is based on the second law of thermodynamics which says the disorder known as entropy increases with time. For example, a building left untouched will slowly decay into its surroundings. It will disintegrate into a more chaotic state but it is highly unlikely that the building will become more orderly over time - this is because there are many more ways for a system to be disorderly than orderly. There can be many ways for something to break for instance but only one way for it to be put back together again. A system will be less disordered in the past and more disordered in the future. This is the arrow of time.
So how can the arrow of time be reconciled with Einstein's equations? If time can go forwards and backwards according to relativity does that mean it's possible to go backwards in time? The theory of relativity does allow time travel to the future.
Einstein's theories do allow for the formation of wormholes in space. These are shortcuts that link otherwise distant places in the space-time continuum.
Although wormholes are theoretically possible they're a highly implausible proposition. That's because the equations suggest enormous masses and energies would be required to create and manipulate one.
What remains then is a mystery. Theory fails to forbid traveling backwards in time but practice suggests it might just as well be forbidden. For now it would appear the arrow of time cannot be reversed. No one knows why time passes but it seems that no matter how people look at it, it goes in one direction in one direction only.
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Why does time pass? Answer; "We don't know." Great video.
nailed it!
The purpose is to make the viewers think about it by creating interest in them. It's obvious that we still dont know how and why time originated or for that matter we dont know anything except that time is moving forward.
bhuvana950
I'm wondering how much this guys cost us?
the "balls" simulating gravity on that sheet is WRONG
MrTiti i also believe that Because what happens when you do the same experiment in space station where gravity doesn't exist...
WHY DOES TIME PASS?
Because it works hard, keep studying you will pass too.
What do we want?!
TIME TRAVEL!!!
When do we want it?!
IRRELEVANT!
Smart one!
😂🤣🤣😂
that is funny...and I'm the one who gets to decide on these matters...
Might be my favorite joke of the year
Don't return before you start out.
Time is so everything doesn't happen at once. Space is so it doesn't all happen in one place.
wow im surprised you don't have more likes. that was pretty deep. My mind just exploded 😳🤯
But was there space and time before Big Bang,
didn't Big Bang technically happened at once and at one place.
From the perspective of a light particle, it does.
Except everything does happen at once. Its always Now.
@@mysticwine That's not what it means.
Procrastinating so hard right now
if your procrastination is trying to understand more about fundamental principles of our universe then you could be doing much worse
I was going to procrastinate today but decided to put that off till tomorrow.
Yes. Doing nothing yet trying to get smarter at the same time.
I should be writing an essay but here I am
EY ME TOO i came here from particle wave duality
Economics is so interesting!
made me lol bro
A video on the time value of money might be more appropriate.
Andrew Kerr The Economist*
Lol I’ve got milk all over my pc now
I watched this several times for years, very concise. Nowadays, many people and scientists still awe with all those ideas and theory of Einstein.
"Time has no direction"
Can we go backwards in time?
"No"
Yes
@timwins31 thats the sarcasm i was portraying
but if everything including you did go back, how would you know?
Precognition has been shown to occur in experiments and in numerous dream reports. The idea that everything always goes forward in time all at once may be an overgeneralization.
Time has two direction but the equations of physics, besides entropy I suppose, are symmetric to both of them.
10:06 The answer to the question which happens to be the title of the video
thanks for saving me 10 minutes of my life
Just pass on the good deeds bro, I have no idea why they would make such videos
Ams11121 the freakiest thing I happened, I went to 10:00 and waited for 10:06 and as soon as it turned to 6 the video buffered for 10 or so seconds 😂 creepy though
Am I the only one constantly getting chills when watching documentaries about things like this?
you are not alone! this stuff fascinates me!
Kingricky76 Me too :) (And I'm glad to hear that I'm not the only one :P)
jim morgan?
jim morgan Please explain what you meant with that first sentence of yours xD
jim morgan k ;(
Never realized "the economist" had such a hard on for space/physics/science stuff. Pretty cool. I know all the interviewies from elsewhere and they are all legit, so good job
Time slows down for me during weekdays, runs fast on weekends
Video summary:
1) Einstein is dope
2) I mean really dope
3) So dope that we can't top him.
hahaah
Okeh
Issac Newton did.
Without Einstein's equations GPS would not work! you ignorant fools!
Daniels30, Precession of the perihelion of Mercury clearly shows that Newton did not know!
Interesting how he used the 7 years to 1 hour example for a black hole.
He was working with Nolan on the physics of interstellar i think
wtf you on about Tommy, quit talking shit
Mashbox Car Jesus shut the fuck up, there is nothing wrong with his comment.
Mashbox Car And you think youre intellectually superior because you learned about this theory earlier? ? that's what distinguishes you from other people? calling people retarded on the internet? what a miserable creature you are... I am truly sorry for your mother
*MUUUUUUURPH*
Fascinating & Edifying 👍
Love such videos from the economist.
Answer: no one knows. I don't know why it passes but I can help you save some of yours.
James Leon thank you
How come on every video like this there are a dozen commenters shouting "Time doesn't exist!" and who think they're some kind of genius for saying that?
There are two theories of what time is, A a structure of the universe an entity that flows, that events move through. B an intellectual structure devised to sequence and measure events. My opinion would be the latter theory, reason being according to the structure of the universe theory time began at the formation of the cosmos which was a fraction of a second after the big bang occurred,how could time elapse prior to its existence. Also we see space between objects=physical we don't see time between events we sense it though it's not familiar to our five senses =intellectual. Time is real as are imperial units or the metric system for measuring the distances of events the way they measure distances of space.
Because it doesn't dumbass.
***** Right back at ya.
Time itself doesnt "exist" on its own if there is 100% no matter there cant be time measured. its just a measurment of the current aggregate state of the matter and its ever changing nature. So actually we are in an timeless everchanging sea of matter and counting the waves happening around us. Mass and energy stay the same just the position and type of matter changes.
szebike If there is no matter, then space can't be measured either. But for some reason we never speak of space as being an "illusion." I'd never get a litany of responders all agreeing that space is meaningless, and "it's just a result of brain's perception of distance between matter's many positions".Or whatever. What makes time seem so unreal to people? It's no more real or unreal than any other concept in physics.
Not to mention the irony that no one can seem to explain time away without also invoking it. I mean, you say that time is a measurement of matter's "changing nature." But how is "change" meaningful without time? Ryu Darragh above you claims that it is the way the brain perceives the "evolution" of existence. Same issue. You're both begging the question. If time is so illusionary, you would think it would be easier to eliminate it from our descriptions.
There are many geniuses in the comment section who have their own theory about time!!!
So true! I had to lower my IQ in order to make a comment.
Good video. It was made by The Economist magazine?!? Well done!
What would it even mean to "travel through time"?
Since time is much more accurately (possibly the only accurate metric) described as the contemporary state of entropy.
If you were to reverse the flow of entropy somehow, wouldn't you simply return the universe to a different arbitrarily chosen state of less entropy, where you have no idea that anything has happened, because the system has yet to decay to the point where the 'flow' was 'altered'?
It seems like time might be constantly changing directions, imagine an ocean tide for imaginative effect, but since it would be fundamentally 'swaying' entropy, we could never perceive the swaying, because we perceive as time, is simply the furtherance of disorder.
At any given state of entropy, a sentient agent experiences a... "thing"... And shifting the direction of entropy should mean nothing to how we currently perceive the state of order in the universe.
hossrex traveling into a different gravity field, either you would have aged a lot or less than normal, and the earth would still be the same of course, so if you wanted and it was possible for us, you could be 20, travel to some place, and come back, be either 20- 21 or 23 (could be much more than 23) and the earth could have only passed 2 years into the future (as an example)
RyuDarragh
I believe that's what I said. :)
RyuDarragh
Thank you for the suggestion. That sounds like a novel I would enjoy. :)
U sir write such things which crack interviews... In life I discovered there are people who can sell a chicken as a dinosaur by just confusing the other person. It goes above the understanding of 95% of the population... But who cares... It sounds legitimate. :)
Swapnil V
I wish your words weren't so true.
Time is a measurement. It's not necessarily something that "passes" that's just how we perceive it because that's how we measure it. All we know is that things change. We measure the relationship of change between objects as time. For example, the earth changes its position relative to the sun. We measure this change in position and call one full revolution a year. The earth also rotates on its axis. We measure this rotation and call one full rotation a day.
That's not to say time doesn't exist. It just exists because change exists. In order to stop time, things would need to stop changing. To move forward in time, you would need to change slower than you currently do relative to everything else that changes around you. In order to move backward in time, you would either have to reverse the change that occurs within you or everything else would need to reverse relative to you while you continued changing as normal. And good luck with that you buncha crazies.
...at least that's how I see it.
That really doesn't make any sense at all and is rather incorrect, but it's good to have thoughts.
DJ The GameBoy makes more sense than the video
what what it makes sense. You just haven't taken the time to understand his comment
There's no reason to change something that doesn't exist. Why try to change something that doesn't exist? It's delusional. We as a community/society if you will, are so persistent on seeing our agreements as something static that we have become to scared to let go of them. Existentialy we are like snails, habitual creatures to afraid to change, to afraid to be with the change, be of the formless ever changing moment. There simply is no linear time, all there is is now.
A long drawn-out single now.
In every moment that you have an experience (which is all the time btw) you are quite literally experiencing an alternate reality in which everything has changed from the previous reality. The assumption then becomes that things change within the same consistent linear reality, which is not true. It's not that there is one consistent reality in which your molecules move around independently. Every little change is a complete change, a complete shift of the total universe. You change world's every nano second.
One way to imagine this is to use analogy of a movie. You know that a movie consists of frames of images, and each frame is its own complete 100% reality. One frame has no structural relationship whatsoever to the next frame, even though they look very much alike. You could cut the reel of film, take one frame to China and one in a rocket and send it to the moon. The two frames have no relationship to each other whatsoever, even though they look similar.
It's up to the observer to create the sense of linearity or "time" based on the image, And the next one, and next. You could potentially stack the images ontop of each other, this is how I imagine we as a species traveling in time/space. But we will have to collectively raise the collective roof of consciousness first.
DJ The GameBoy thank you! This is what I always have in mind about time.
Please stop the Loan Depot ads that hammered me again and again that I endured while watching this excellent video-it was interrupted (for me) 4 times with the same Home Depot ad. Was I trapped in a time loop traveling back to the future? I learned that Loan Depot ads profoundly affect my concept of time and my relationship to the universe.
As Robert Lanza points out, the idea that all the time that has ever existed is stacked one piece upon the other and that we just happen to be standing on top is patently ridiculous. The chance of that happening is incredibly small. More plausible is that the past, the present and future all occur simultaneously.
in my math class, why *DOESNT* time pass?
Tlactl 😂
Oh, it *does* pass, just more slowly than elsewhere. That's the relativity effect!
You are moving at the speed of light during math class
In my class why don't I pass?
did a group of people just get together to deliver a message that is "we don't know shit."?
beats working for a living! aka theoretical Physicist?
😂😂
The message was "we know a whole lot, but we're still figuring out the answer to this specific question". The way you misinterpreted it is actually what this video made you think about yourself.
I've never been on a light speed spaceship nor have I even seen one! philosophically speeeaking I don't have time to discuss this further, I'm busy fighting my very own entropy!
party pooperZZZ that's pretty much what science is.. we don't know shit so let's pretend we do or whatever to pass the time... *bingo
This was the best video I’ve ever watched on UA-cam
Something profoundly comforting about this conversation
Simple, because Gandalf allowed it to pass.
Ma Sa you're the only one courageous enough to speak the truth
ExistenceAmusement
The truth is quite scary, but someone has to say it :p
you must be exclude from Hogwarts!
I love Lord of the RIngs
Ma Sa o
Time is just a measurement of "change".
pandagreat Then what is a change
+nadjim73
movement of particles?
maybe
AlecPlease Well, you are not wrong that changes are based on movement of particles because there is always motion, relative changes at atomic levels. But that doesn't answer what a change essentially is.
I say, a change is unity and separation combined, and separated.
Think about that, doesn't this view make sense
The real problem is like when we ask what it essentially is, we ask after something which has a clear picture like a particle.
Actually, we should say, something is changing rather than a change, because a change is not substantially to grasp, so to say
yes its the movement of energy through space, on a much more larger scale. the more energy in one place the faster time goes and vice versa
SuperBoxyBoy without time everything would happen at once
Awesome video.
Thank you.
Interesting subject and good video, even though it had no real answers, the Economist does fun stuff. The answers are in the stars and ill be long gone and dead but when we finally just start doing things in space answers, failures, and technological advances will come.
As Groucho Marx said, "Time flies like an arrow; fruit flies like a banana."
does time pass or is there only one persistent moment that lasts forever?
everything is bullshit.. we're an eternal conscious being having an experience of itself..
That statement is vacant new-age bullshit, just reproduction of other people's words that you regurgitate without the insight of what you're saying...you're just another inauthentic fuckin narcissistic new-age idiot and I'm fuckin sick of you people....I am just another troll, I realize that, but you....you fuckin people....you fuckin.....aaaaaagh....
Dejan Markovic hey that would be cool if you didn't tell me how I think but then again the world is filled with people like you who don't understand philosophy.. what are you like the shitty part of my brain trying to drag me back down to lower consciousness? no stay here.. be of the physical world.. don't realize your true nature.. be an animal or whatever.. it's actually funny how you pretend you're a personality having a human experience as if it's so important that everyone knows who you are, thinks all your jokes are funny and recognizes you as a very special individual. I'm sure it gets your rocks off real good.
Maathiu Ra Yin if time slows down the faster we go, this is good. It will allow us to travel further into the universe in one lifetime in the future. Whatever way we look at it, it's a head fuck.
Maathiu Ra Yin Time does not exist. It is a man made concept, an underlining abstraction to have a better view and understanding of several events.
Time, physically, is understood to present the duration of an event like how long does it need (relative to a constant like the speed of light c) going from point A to B.
So, time can be seen as a duration, a length (between different events). Movement means "how much of a spatial length is reached for 'a' certain time (duration) like say 1 second" in one dimensional space per (a one dimensional) time.
Measurement means we "detect" a difference relative to a fixity. Lets say everything in the universe was moving in the same direction and with the same speed.
Would we recognize a difference, any motion? Would we have a time? No, we wouldn't because the relative differences are what makes time to what it is to us.
Entropy increases as time passes. If that's the case stars and planets would not form. Yes they eventually decay, but they form first, leading to more order. One of the first things I learned in Chemistry is that atoms seek the order of a complete valence shell.
1:13 Best explanation of time I’ve heard.
Not sure why they need to complicate time, its actually pretty simple. Time doesn't move, we move past time. Time is the 4th dimension along with height, width and depth, it is fixed.
The passing of time is an illusion just like the sun rising and falling over our sky makes the sun appear to be moving (which it is, very fast). Or like the scenery whizzing past our window on a train while we appear to be standing still makes it seem like its moving past us in one direction.
Charlie Parker
What baffles me is what it is that keeps us moving through time then? In order for an object to move some force is required, so what is moving us through the dimension of time?
I'm sure gravity has a lot to do with it. All matter has a gravitational pull, and the universe contains a shit load of matter.
Charlie Parker But gravity isn't a force, it's just the curvature of spacetime, right?
wrong. google it
Honestly, NObODY is certain about that at this point.....NOBODY!!! And don't let ANYONE bullshit you by pretending they actually understand something that even Experts don't truly know and are currently scrambling to figure out for themselves!!! A LOT of things in Physics and other areas of Science are nowhere near as Certain or understood as some people would have you believe!!!!
Why does time pass?? I suppose it's running game sucks.
Hahaha..... That's really bad.....but I did laugh a bit
Chris Nizer Time Tebow has neither
took me a second
Ha.ha.ha.
that's actually good lmao
Interesting video on time. Those booming sounds in the background reminds me of the Cloister Bell from the Doctor Who series. Chaos is approaching. The Cloister Bell was first introduced in Tom Baker's final show "Logopolis."
Many new dimensions of thinking ...Nice effort...
@0:00 hey, Vsauce, Michael here. And we all know how to pass the time but how does time pass????
MOISTURE GOD
Where are your fingers?
MOISTURE GOD *pops up from the lower corner of the screen "think about it like this. If there was no.. time.. it would be every time.. everywhere... and at the same time you would be able to be everywhere but at the same time... nowhere
I read this comment in Michael's voice and right after he asked "...but how does time pass?", the interrogative music played.
it just was mpossible to resist lol love that intro's music
SO COOL! This channel definitely needs more views/subscribers!
i understand time and the best way to use to your benefit. here is a tip for our time slice of 24 hrs always try and adjust time by acting on your thoughts asap. your thoughts is what molds your future and your future is ticking yes ticking time......time is in a motion, we can not control this. but we can adjust to our benefit as best as possible...all of us have busy life's the key is to live/ act slower than faster but to be concentrated while doing so..i cant explain in one phrase contact me for questions.
Viny, I could not agree more! On the bright side, however, almost 520 thousand people have been heroic and done the difficult task of putting down their fortnite games for a 10-20 minuted video
you telemarketeer?
Op
Time is our perception of entropy. Everything is winding down, decaying. Time is how we perceive that process.
And yet, life itself renews itself, decreasing entropy. eternally, in the face of entropy
But then doesn't entropy itself functions along the time axis? If time was just our perception of entropy, why does entropy take time at all? Why can't it happen simultaneously instead of in stages (aka along time)?
This is true. And when that entropy reaches it end...boom, another big bang. Roger Penrose has the right idea.
Time is a clever illusion as is space.
Things move and observers registrate the movement that relates to other movements in a certain ratio. You registrate and see the movement of the states in which something alters and the you experience the different ratio of other movements, which makes a perception called time.
Wanna know what time is?
3:52 am here,
nice meme
+Counter-Strike Source It's actually 1:30 am in here.
Alex SH stfu
5:16 here
Alex SH 1:33
I would've liked to see this explored deeper rather than just accepting that "time is what it is". Entropy is a circular explanation for time IMO. The best beginnings of an explanation in this video was the guy who suggested that space-time is a bunch of slightly different moments in which we find ourselves.
entropy has nothing of circular
pitthepig Could you explain your reasoning? I'm willing to accept I could be wrong. But in my opinion, entropy--at least the way we think of it--is a phenomenon arising out of time.
I think that what is considered a staple of the universe is entropy, not time. So time is a consequence of entropy, but entropy is not a consequence of time. You can't stop entropy, there's not way of holding it back.
Hmm... I believe it to be the opposite. Entropy is basically the state of disorder of a system. In and of itself it's not really time based so I should be more precise here: the observation that disorder always increases IS reliant on time.
On the other hand--if we look at the universe as an infinite collection of all possible configurations--then entropy and time have no direction. So one could not say that disorder increases or decreases.
This is a you tube page for the economist - a publication not noted for deep philosophical metaphysical thinking...
They might do a good job telling you about the local economies in Abuja or Lagos however.
Loving your shorts economist! How do I get a job with you guys as a videographer guy? 😃
Just Wow, The Economist taking on General Relativity!
Title: Why does time pass?
10:00 into the video "no one knows why time passes..."
So if someone is moving faster than you you see him like he indeed is but in real situation he is going through time slightly faster than everything around them do he is faster. So is speed the curve of time?
The easiest way to explain time is: time is movement perceived by beings. Things are moving from an atomic level to what we can see, and since we have memory and we're also able to imagine the future movement of things, we create the illusion of a timeline - past, present, future.
Actually the whole reality just exists in the present, whereas past and future - which compose the timeline - are just inside our thoughts.
Second, just a comment, you can't affirm our world is moving 'from order to disorder'. The definition of 'disorder' here is not a consensus in scientific community.
Edit: complementing, things like speed or gravity may affect the way movement happens, that's why we have relativity.
Decay is supposed to happen Is only logical. Things are suppose to exist for a period of time...and as physics develop their theories that for every action is a reaction.
Decay is very much part of time.
- The idea that time is also quantized into seperate distinct (here now) segments has been negated by observing photon streams from split beams from billion year quasar gravitational lenzing which showed no evidance of time segmentation down to near plank size.
- Time, like the concept of volume, a manifestation of 3D space would be an unknown, but essential concept to a flatlander trying to understand 3D reality.
- So we may be missing a vital conceptual component of 4 dimentional (spatial) space that our universe may be emersed in. Thus creating the enigma our 3D minds precieve as time.
It's hard to define time it can be looked at as moments but the messure is relative not absolute
I'm coming back and watching this stoned to try to understand it better.
Msw .9 I'm stoned rn
time = movement and the measurements of such movements. without movement time would not exist. right?
Nope, time is a clock that's ticking. 1,2,3,4,5 etc.
Spot on. If earth did not move, then there would never be time. We never stop moving in one direction, hence the arrow of time goes in one direction. Simple.
you are right
Adonigh Ah thats right, actually time doesnt exist, only there is movement of objects, imagine if there is no matter then how do you define time
No time is just something that is presented on a clock.
Excellent narration about Space- Time relations. Still it make a lot of Time but not space to fully understand this.Thank you Economist.
this is the moment of time in which the world still doesn't know that i already solved this problem, with the most unexpected and craziest way u cannot imagine. they think they'll probably find it out with relativity and quantum mechanics but no, it's about solving another huge problem that has been long forgotten, it's the key to understand this universe and the key to answer this question.
it's cringy haha but still
why do we pass gas
Because we eat horrible shit that starts decomposing before we've even finished digesting it. As it literally "rots" inside our guts, gases and bacteria are produced... And along with the gases expelled some horrible shit is bound to be expelled as well. Now you know. :o)
Delousing.
If what we ate didn't decompose inside us, we would have no way of metabolizing it.
gnarth d'arkanen the way you explained it doesn't make any sense
Because the internal processes of the body utilize time.
You can use entropy to explain time going forward vs backward.
No, you cannot. You can use entropy to explain most collections of matter undergoing increasing entropy together by the basics of stochiometry but that's a probabilistic characteristic of position and velocity. It says nothing about a directionality of the underlying time in which microstates change from one state to another.
Highly informative...
On entropy I believe it has been found to go to an orderly state at the quantum level or under extreme conditions
Absolutely well done and definitely keep it up!!! 👍👍👍👍👍
If 4 people of identical age (quadruplets) are each travelling in separate spaceships travelling at différent near light speed velocities towards the same star- when they all finally arrive at the same star are they the same age? Obviously the fastest arrives first, and has aged least- but has to wait for the next to arrive. When the 4th has arrived- are they all the same age?
Depends on how much faster each ship is and how long they each wait at the end...
@Oliver Butler "Obviously the fastest arrives first, and has aged least". Obviously? First of all, we need to define the POV and the reference system. Secondly, the star is also moving, so the one that is moving in the direction closer to the opposite one of the star could still arrive first even with a slower ship. Thirdly...there are too many assumptions to make your Obviously statement not obvious at all.
The fact that you think movement affects aging shows you lack a basic understanding of biology. All those people "age" irregardless of where they're traveling to or from.
You make a logical fallacy of confusing cause and effect and you seem to be making an equivocation fallacy in regards to the definition of what you mean by "age(ing)". So to answer you, your reasoning is full of bullshit logic...i.e. nothing logical at all
I guess they will be the same age when all of them has arrived. Due to speed is "distance covered divided by the time you used to travel", so the only difference will be the acceleration. The first person will stop first, and when the second sibling arrives, his age would have caught up to the second sibling because he aged fastest when he stood still. When the last sibling arrives, the three other siblings reached his age in the moment the last one arrived.
IcanFartLOUD The fact that YOU used the term “irregardless” shows you have no understanding of the English language.
Although now I am a Arts student B.A. 2nd year. But my Love for Physics will never Die out. It gives me Wild Pleasure thinking about Physics. I just left it because It became unaffordable for me. Sala Neet Exam ke Questions ne... Mere Physics ke Pyar ka Gala Ghot Diya. Otherwise today I would have been Graduating as B. Sc. Physics.
But I swear I will full fill my this dream through IGNOU. Or UA-cam itself is enough.
If entropy increases over time, then the future is more random or more entropic then the past. If we proceed from the big bang, the instance that energy defined matter and time began was the more ordered period. As the weight of accumulated time moving forth increased entropy and no outside energy makes for greater order, then the future will become more and more random until it becomes total chaos. As I note, things get crazier every day.
Time is important and I am a clock!
TheStrober I literally read that as something else for a second!!!
If you're close to a fat person, time slows down!
Basicly yes XD
salmansengul hahahaha
Weong the mass is not big enough to cause time to slow down maybe next time tho 😀
joel 123 Any mass is big enough to cause time to slow down. _Maybe next time tho_
Henri Oinonen so what ur saying is being next to a fat man is going to slow down time
Because of the motion of matter. Time is a dependent variable of motion. If all matter in the Universe was to abruptly halt, so would the passage of time -- and this would not be a coincidence, because both are one and the same.
Thanks you so much Best Regards SpiralkingCosmic
Time only matters because we exist. We have the capacity to perceive time. If there was no living thing in the universe, then time would be irrelevant.
Short answer. We don't know.
But we must pretend to know.
Like Einstein.
There is this moment right now. Past is only an illusion because we have memory that remembers many "now" moments from "before".
Future is only our expectation based on our memorized experience.
Entropy is really the key to all of this, as mentioned by others below. When there can be no further entropy, you get another Big Bang. This has been going on forever.
Time is the the unfolding of events. It's very much real, and very much necessary for the existence of the universe. You will not convince me otherwise.
Comments on educational videos always lower my IQ.
I don't think your IQ can go any lower Trevor.
"A calm and humble life will bring more happiness than the pursuit of success and the constant restlessness that comes with it." -Albert Einstein, 1922, in a note to a bellhop in lieu of monetary gratuity.
Yeah my IQ got lower when I read your comment
Well yes it's much 2 flexible#
@@DavidAgolli
What do you mean, specifically?
Time is the mental construct we have because we are in the 3rd dimension, it is a by-product of cycles, (Earth rotation for instance which dictates the duration of a day) entropy (an ice cube melting down) and the capacity of matter to occupy different positions in space. How could you measure time if you don't have this elements? Hence the absence of time in the 5th dimension and the higher dimensions.
Fasinating,entrophy is so true
I told you, it's always because of One Direction
Judin Kinds 😂😂😂
So the way going backwards in time is described here is that entropy must be reversed. That being the case he's not talking about the traditional one person going back in time but that the whole universe goes back in time. How do we even know that doesn't happen? Entropy could stop and start all the time, go backward and forwards you couldn't detect it because detecting relies on entropy in itself.
Bobby Dazzler The issue with that idea is that spontaneous materializations of useful energy do not occur, at least not on a scale that we can observe. Stars do not miraculously split (fiss?) helium back into hydrogen, the ATP fueling your muscles will not suddenly return to carbohydrate form, and the electromagnetic radiation coming from your computer screen won't decidedly fail to be emitted. The universe reversing entropy, even for less than a second, would have unimaginable consequences on both a quantum and grand scale.
Just analyze "motion". Soon you will discover the Special Relativity(SR) phenomena all by yourself.
Also, you will derive all of the SR mathematical equations as well. Even a high school dropout can do it.
Excellent!
If an item in space moves infinitely in one direction once it has been pushed
maybe the reason time moves infinitely in one direction is because it has been acted on by some force we are not familiar with?
+Rapid000 TF2 シ damn this kush iz gud
+Rapid000 TF2 シ Interesting insight! And what is more interesting is that science detected an unknown force which has been expanding the universe for a certain time: the dark energy. Maybe other "dark forces" can emerge...who knows?
+Rapid000 TF2 シ
Yes, i think that would be the case.
Maybe kinetic energy makes time to pass.
+Rapid000 TF2 シ so this is a weird question but i think it's a good one, if a guy travels in speed of light and i'm the guy who lives in earth will the guy who travels die faster than me?
+is it good to do Actually, you will die faster then the traveller because time flows more slowly near speed of light. Your question is answered by the Twin Paradox proposed by Einstein himseld
"Why does time pass?" --- Why is time called 'time'?; why do squirrels eat nuts?; why do people wear socks?; are you sure the light in your fridge goes out when you close the door? -- yes, life is full of mysteries --- why is the fluff in your belly button always a blue-grey colour ? ...hmm-m.
ang galing pano naman kahit na naglalakbay ka sa speed of light.you are just..it does not affect the other matters around it
-jillmer
in order to travel backwards in time you have to "teleport" the arrow of time using quantum mechanics and technology meaning it will only accept one person at a time due to advancements not made yet to supply the data to render it open long enough to handle 2 or more people. we call it the "star gate".
Its the flow of energy in all its forms within the universe.
Better than most answers
"Time is what stops everything from happening at once."
More likely, it keeps everything from not happening at all.
- I'm so tired of hearing the obvious as if it was a profound statement of wit. When infact it leads us right back to square one. What is the fabric of time that allows for these percieved manifistations?
The answer to this is “yes”
Wake up call, so enlightening 🙌🌹
Time describes the rate of a process. Everything is in a process or change. Some processes are cyclical such as revolution of the earth about its own axis and around the Sun. These of course define our days and years. So a object can have multiple and different time components. For humans time also has multiple components. We just relate them to global or universal time components which also are exact - days and years and subdivisions of theirof. Artak Tchalgouchian 2019 AD
“I’m stein, Line stein” lol! Two screwups in the captions.
there is nothink like time it exists in our mind
Time is a measurement of change aka motion aka action. Time is the measurement of a unit or a mass of units in their relation to another unit or mass of units. Change aka time happens because of imbalance, each unit of matter has a dominant negative or positive charge which causes an imbalance that creates motion aka change or time....
Three questions. 1. If time slows down as you approach speed of light then light must have no time. 2. As matter decays into chaos with thermal entropy then eventually it will reach the same likeness and chaos ends. 3. worm holes cannot exist because to bend space to shortcut across space would mean space is a flat two dimensional plane, which it is not.
Both "time" and "the arrow of time" are philosophical explanations of matter-energy decaying and our conscious awareness of that decay. So why are they asking why time has a forward direction? There is no "direction" of time. If the real question they're asking is why does energy-matter decay then that to me seems like an entirely different question.
So the real question is why does matter have entropy. We don't know the answer do we? Just like we don't know why matter has any other characteristic!
+Stevo1361 I don't know if I understand you well but I think that yes, we know why and the video answered that question. Entropy exists because the probability is there to support it. You only have one way to keep "order" and an infinite ways to decay. Which one is more likely to happen next then?
That alone creates an arrow of time which goes along with entropy.
lexgotham Yeh that's what i was saying.
So then the real question is why do things decay!
Stevo1361 I believe that, ultimately, your "real" question is: why the big bang?
Decay doesn't mean anything if you don't look at it as a quality thing. The order or decay factor is just a matter of point of view. You see a deck of cards as ordered or not according to your expectations. But whatever your expectation is, you will always expect one configuration of order and any other configuration will be considered as decay. Which means that the more you go, the more things will look like loosing order/decaying. Ultimately, there is no decay, there only are things that happen. Why they happen? Because there is transfer of energy. And things will stop happening when there is no (useful) energy left to be transferred. And why there is energy to begin with? Because there was a bang and it was big. And why so? Where the initial energy comes from? No one knows. The how is almost explained but definitely not the why.
I may be wrong but this is how I understand it all.
lexgotham Nice explanation, i like it. But you started with saying "decay factor is a point of view". True, that the idea of something decaying is a human concept, but the natural process of entropy is not a human concept. So i was thinking out loud, why do things become less complex.
And from your reply you're saying it's due to the impossibly slow reduction in energy within the universe?
Which makes logical sense so i know it must be a shitload more complex than that.
Yep, time is a social creation, part of the socio-psychological identity, and its historical point of view, which is necessary of course in real life, but theoretically unnecessary. The clocks are man made too. Time doesn't pass, things do, or we pass other things. Our position is not the right one, as there is no general time. There are only changing things, which go from one point to another according to their physical nature.
+Teemu M. Through the Never \m/ \m/
+Teemu M. If women had made time it would go in all directions.
Makes sense. If we as conscious actors force things to go in "reverse" (such as by walking "backwards", lift a fallen object) they will seem to have gone backwards in time. But actually just be following the same laws of physics applied inversely to them. +Teemu M.
+Teemu M. I wish scientists would understand this. And step away from this rediculous theory that time can actually slow down or speed up.
+Thrillseeker303 WOT?
This is a Awesume Question.Pryor to The Bang Time as we know it didn't exist.After the Bang Time began and things started to Die.This gets even more Fascinating when we ponder what lays beyond this physical world to what some call Heaven."Souls" can be considered EM energy .so for them to be contained on a body would require that object to be Super Massive in Density . also, would this body (planet for ex)be the only one?
Time is a artificial thing when it comes to count it in seconds or in whichever other kind of "unit between now and later". Time without a scale is only the now-and-then and the perception of how things change and how it behaves in space near bodies (curved space) or in empty consistent space, while it moves fast or if it does not move at all relative to a body. And yes: identical and synced clocks run slower if in motion relative to earth than the one same clock with the same precision which sticks to earth sitting in one place all the time. Planeflights were already sufficient to show this effect.(the compared clocks were actually atomic clocks!)
If you imagine the passing of time as the movement of our entire Universe in a higher dimension, we can theoretically change the direction of time by changing the direction of movement of our Universe. Although, this practically is impossible.
Daniel Șuteu i can also imagine my dick is larger than average, however...
An obvious good point. Imagination does not change reality, but yet, it's fun to imagine. ;)
Daniel Șuteu Reversing entropy...hah! Blasphemy! Guards, take him away...
Physics Teacher : WHY ARE YOU SO LATE TO CLASS ?
Me : Sir i was coming to school with speed near to light ,
so " i am on time "
but for you the lecture is over , as time passed rapidly for you...!
Physics Teacher : " Convinced...! "
🤔🤔🤔 😌
" next time please travel slowly "
wOW~ yOU ARE gENIUS~!🙂🙂
It is necessary to wear an "accelerator", "laser light" emitting that light, "gravity control" around the "accelerator" and the N pole S pole magnet above and below the vehicle around the vehicle, Prepare 'fuel' and if things are done directly it will somehow distort the spacetime. Even if it is impossible to go to the past, if it can go only in the future world, that is enough.
Time is just things happening in relation to the speed of light?
Is there in any possibility that I can use any of this to explain why I was late for work?
Being a night owl / someone who is chronically late to everything really makes you question your perceptions of time.