Is time real or is it an illusion? | Michelle Thaller | Big Think
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- Опубликовано: 12 сен 2024
- Is time real or is it an illusion?
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Time can change depending on how fast you're moving through space. Also, time can "flow" at different rates for different observers.
Light doesn't experience time - it exists outside of time. We perceive space and time differently, but they may be woven together.
For instance, they both balance each other out: If you are still, time goes by at a natural rate. However, if you move through space very fast, time begins to slow down.
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MICHELLE THALLER:
Dr. Michelle Thaller is an astronomer who studies binary stars and the life cycles of stars. She is Assistant Director of Science Communication at NASA. She went to college at Harvard University, completed a post-doctoral research fellowship at the California Institute of Technology (Caltech) in Pasadena, Calif. then started working for the Jet Propulsion Laboratory's (JPL) Spitzer Space Telescope. After a hugely successful mission, she moved on to NASA's Goddard Space Flight Center (GSFC), in the Washington D.C. area. In her off-hours often puts on about 30lbs of Elizabethan garb and performs intricate Renaissance dances. For more information, visit NASA.
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TRANSCRIPT:
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The universe is a single work of abstract art. It's only the mind that gives it subject matter. Basically we're seeing objects in a very sophisticated cloud.
Depends on how much pot I have smoked? WOOHOO
einstein is wrong about time and i will prove it oneday just need a bit time and funding
@@TheDeepening718 To suggest that the universe is a single work of abstract art, is to suggest that there is a painter.
If time isn't constant or it's different throughout the universe how do you measure how old the universe is or how old anything is
She explained a very complicated concept in a very simple way! That is a sign that she understands the topic very deeply and that she knows how her audience thinks. Respect
What she spoke is just nonsense! Einstein was partly right and partly wrong.
@@AmitKumar-sk9zq where is YOUR video, or your thesis explaining your counter argument using evidence, or do you think your simple statement on a youtube comments thread is enough?
@@AmitKumar-sk9zq Dont just throw some comment out here. She is an accomplished and a popular Astrophysicist and knows pretty well what she is taking about. Like @
Only A Northern Cyclist says, if you have a counter argument to prove your point, present the same with evidence to show hos she is speaking nonsense. Else stay away from throwing some nonsense and useless comment here. Respect these amazing Astrophysicists who are key for humanity
Easy dude. You acting like groupie
The best definition of time that I've heard is that it's something that keeps everything from happening all at once, just like space in something that keeps everything from happening in the same place.
why though
OVXX LSD
birdman49 I don’t know why, but that explanation satisfies me in a way no other has ever done. Its simplicity is beautiful. Now I can relax and disentangle my muddled brain. Thank you👍
All of time is already happening at once, it's just that a fundamental aspect of the universe (entropy) makes it seem as though we progress through a linear path. Also, for the fuck of it, you are the same consciousness that resides within every human being. You are all of them and they are all of you. You are the trees, the bees, the cats, and the dogs. All life is the same entity plugging itself into this dimension to experience its creation.
God made man is his image. It is not that the design came first, it's that the foundational mechanics of this universe are set up in a way that will always produce a spacesuit capable of navigating all terrain, thus will look something like us. (bipedal humanoid features)
@@Astares9 uhhh god? Oh boy.....
I've been reading about physics, including theories of space-time, for decades. And Michelle, after hearing you explain it, I understand it better than I ever have. This is the best explanation of the concept I've heard yet. Thank you!
Time is nothing but change compared to change. It is not expressed any other way. It's not an illusion, it is something we humans do.
@@The_Real_Indiana_Joe Nope, what we do is also an illusion.
I want her to be my teacher forever
Me too
Same here
Same
I would have a brain freeze everyday.
I would like her to be my mommy.
My mind exploded when you said that light is outside of time. Now looking at the light coming out of my lamp, I feel more excited and alive than any science fiction novel ever made me feel! thank you so much.... I feel like I could time travel if I thought about it properly.
My grandmother was just diagnosed with cancer and I’ve been taking it pretty hard. And when you said something along the lines of “with the right perspective, you can see all the past, present and future all at once”, I found comfort in that. Thank you.
Thank you Michelle! For explaining this so clearly
Even more clearly: Time is change. Change is real.
Kaiser Basileus photons don’t experience time, are they real? But Change isn’t really what time is... time is actually causality. But if it’s causality, it might not be real. Quantum mechanics shows us our universe doesn’t have local realism, nor does causality have to be local. Quantum Physics most profound finding is that nothing really exists without observation (Niels Bohr has a great quote on that). So what is real except for the observer?
@@havenbastion She just told you that change is relative to speed.
1. Spacetime does not physically exist. It is a conceptual model used to visualize relativistic effects of fast moving objects. Within that model, the perception an object is affected by its direction in 3-dimentional space and its speed.
2. Photons do not experience time because they have no perception... but their movement through space is observable and measurable.
@@kaba_me 1) Semantics aside, Spacetime definitely does exist. Gravity is literally the warping/curving of spacetime. Without spacetime, you don't have gravity. Also, spacetime itself is expanding rapidly (faster than the speed of light). This expansion causes the Redshift we use to measure intergalactic distances. 2) Photons don't experience time because they travel at the speed of light. If you could put a clock "on" a photon it would stop. Photons don't experience distance either. These concepts are fundamental to Relativity. This has nothing to do with a photon's "perception", nor what you observe or measure.
"Einstein thought that the beginning
of the universe--the big bang--created all of space and all of time at once. So every point in the past and every point in the future are just as real as the point of time you feel yourself in right now. Einstein believed that literally. One of his best friends died, and he wrote a letter to this person's wife, talking about how his friend still exists. Time is a landscape, and if you had the right perspective on the universe, you would see all of it laid out in front of you--all past, present, and future as a whole thing...Einstein believed that you right now have been dead for trillions of years, but you haven't been born yet. That everything that's happened to you, if you could get the right perspective on the universe, you could see all at once."
Mind blown x2.
Tbh, for me, it's ×10
Wait... Isn't that something related to the one we saw in 'Interstellar'
I wish that teachers explain things at schools as clearly and simply as you do Michelle. You are a big extraordinary talent. Thumbs up 👍🏼
Great job explaining time, and I’ve gotten a few new things to think about. I’m saving this video for some later replays. these videos make me wish I’d taken more physics classes!
Michelle, you are a scientific story teller. And a good one. Thank you.
I feel that time, space, and information are intertwined with each other to form physical reality.
so well spoken and articulate thanks
I think had a perspective in a near death experience. I could see feel hear and know everything all at once. The center seemed like a huge continuous explosion that never got bigger (the light). I realize how ridiculous this sounds but I am very happy to have had the experience.
It helped my grasp time from a different point of view a tiny bit better.
i have had a similar experience but in a dream, or maybe a distant memory, thank you for sharing
So nice to see you in a documentary again, Michell
Time is an illusion; lunchtime doubly so.
--- Ford Prefect.
Don't Panic!
I have (for some time now) thought of time like a music record, and you are the needle of the record player experiencing the album one note at a time. You, as the needle can know what you've played, but not what you are going to play even though it is all mapped out.
I like that!!!
Let me postulate:
If light experience no time. Time is not uncertain. For light to interact with two separate points in time, while not itself experience time. Time has to be set from the beginning to end, and nothing else than an experience inside time.
So, everything that has happend, and will happen. Already exists all together where time isnt measurable.
Funny... a lot of people who've smoked DMT say they've been to a place where you can see all this. I've read many accounts.
well that isnt really your postulation, its actually what she said in the video lol .
"Time is but a stubborn illusion"
-Albert Einstein
It's actually, "The distinction between past, present and future is only but a stubbornly persistent illusion".
a.k.a THE BEYOND.
I love space/science etc and the perspective it brings to life. It inspires deep thoughts but this is one thing i have struggled to understand my whole life. Just the concept of "spacetime" being one thing instead of space and time being different.
It's quite fascinating and frustrating at the same time.
It also makes your brain hurt thinking about it, in a good way, but still, it hurts.
That was an awesome explanation! She always helps me think of things in such a different way, a way that helps my brain comprehend a concept so much more clearlyn and that is so cool. I think Michelle is my favorite scientist to listen to on this channel. Cheers!
Thanks Michelle! Pls dont stop educating us! ❤️❤️❤️
Her last few comments about Einstein believing that if you have the right perspective you could see your whole life… is quite mind boggling!
And makes me wonder - is our life path already set out or do we really have free will? Fascinating question!
i absolutely loved that part, very interesting. i do believe we have free will, just that every single choice we make is one of many paths leading us to a particular future.
She said about basically the universe from a photons point of view: “I’ve never found the right way to think about that.” I wish she’d make a video all about what she’s considered or ideas she’s debated about it. If we could experience what it’s like to be a photon, what would we even be experiencing? Just existing in all of space at all times? Can there even be more than one photon particle in spacetime if the photon doesn’t experience space or time? Can we even think of photons as particles at all, or should we only think of it in terms of a quantum field?
you just blew my mind, and made me excited about learning something new. Thank you.
hope u found it again
Wow you let a demon blow your mind lol
Her enthusiasm is infectious and she always makes such complex topics seem simple
This makes me miss my grandma, but hopeful that she still exists on a different plane of reality.
with all due respect to Einstein, when u die u die as time doesn't have a reverse gear
@@ukidding you didn’t get the video LMAO
Hang on- so, if Einsein’s ‘dead’ friend still exists, just at different space-time coordinates, then surely I exist in future too.. which means my future is pre-determined right?
I mean, if everything that has, is and will happen is occurring all at once then we’re all just passengers on the train of life.
Exactly... It’s like a movie on a reel. We experience the movie one frame at a time (time slices) moving in a forward motion. From the forth dimension (time) you would be able to see any frame in the movie at the same time. The end or the beginning. Understanding how flatlanders experience life in 2 dimensions helps to understand this phenomenon. 5meo dmt allows one to experience this in “real time” ; )
Very helpful, well constructed, and also somehow leaves lots of room for expansion.
Space-time expansion even?.....
I see what you did there…
@@josephasghar you clever boy :)
Michelle, Neil, Brian, Bill, Lawrence, and Richard.... I love the way they present, in an easy to understand way, tough science concepts to the layperson and general public. They ARE good.
It seems like that movie “Arrival” was more correct than I realized. This was a really interesting video. Thanks so much Michelle!
Special relativity is a topic that I crave to understand intuitively more than anything. It would give meaning to everything if all our lives and everything we care about have (always) been etched into forever. If all moments in time are equally real, nothing is ever really lost.
When my best friend died over 2.5 years ago, this has been the one thought that I've desperately held onto each day to keep him alive (in a literal sense). This is the first time I'm hearing someone else also speak of death in this manner, and I could feel a form of relief welling up inside that I haven't experienced in a long while. It's finally a step in the right direction in dealing with this grief that has struck me deeper than anything I could ever anticipate. I hope to understand time the way Einstein did. Even if I have to spend the rest of my life searching for the answers.
Woaahh right in the feels
Sorry for your loss
If I move through space really fast and time slows down, then if I stay completely still, does the external time speed up?
So I can travel into the future relative to my internal time by achieving stillness?
No, time moves at a rate that is relative to the speed you are going, achieving stillness wouldn't speed time up for you as we don't possess the ability to move through time, we can only change the rate we perceive time
I'm particularly interested in this topic because of some subtle but striking parallels between this and the literature surrounding meditation, including the scientific data, religious descriptions, anecdotal accounts and so on. The most obvious being that with sufficient practice the meditator will describe living in a "timeless state" described as experiencing all time/all events as being "one moment". Strangely enough, as they approach this "zero-point time" experience the general feeling is that time and their lives are "slowing down" something quite similar to time dilation. It's quite a big jump, there are other similarities that click for me in saying this but, the thought in my mind is that in some way the literal "observer" isn't that different from the "scientific" observer. This is to say that perhaps concsiousness itself can attain "light speed" via meditation or may, even a bigger stretch be "light". Because in the simple sense you could say that light, by contrast to darkness, simply implies "sight" where darkness is lack there of. And what is concsiousness besides seeing? And don't even get me started on black holes and holograms cause that just makes this too weird
Our brain runs on electricity and isn’t electricity light? Just something else to add. They do call meditation “enlightenment”.
@@eliciagarcia3601 one of the other things that makes me consider this ;)
It is simpler, and equally valid, that time does not exist, but is a perceived as a side effect of how the mind organizes experience in memory (sequentially). We see change of one thing relative to another. The rate a car is moving through 3 dimensional space compared to the speed of light (or some other rate of change we perceive as relatively constant, like the earth's revolution, a day, an hour, etc). According to Einstein (and satellites timing functions), as an object approaches the speed of light (or the faster an object travels through space) the slower it changes (it's atoms slow down). Time is just how our brain manages the dynamics of change that affect our lives. With regard to time being a thing, 'now' is all there is. 'Now' is all there ever has been. 'Now' lasts forever, and everything in the universe is always changing (accept light, maybe). Sci-fi sometimes toys with the idea of time travel. Not possible, as there's no place to go. Einstein's timespace model might work in his mind, but he might be looking at it skewed. The idea that everything happens at the same time? Yeah, it all happened, will happen, is happening 'now'. but not at the same 'time'. Now lasts forever, and everything is changing. no going back, no going forward. What has been has been, what is is, what will be will be. But always 'now'.
The passage of time can be explained pretty easily with a simple 2D graph with X and Y axes.
In order to gain faster progression along X axis, the graph line has to be drawn as a rather flat profile (little increase along Y axis).
In order to gain faster progression along Y axis, the line conversely needs a steep climb (little increase along x axis).
One cannot gain rapid progression along an axis without sacrificing progression rate on the other axis.
Expand that to 3D space with X/Y/Z axis, and the same principle applies. In order to progress quickly up the Z axis, X/Y axes have to be traded off.
Now consider space-time as a 4D graph with the same rules. If moving rapidly along the X/Y/Z axes, one can't go far along T(ime) axis.
Michelle Thaller, you're simply the best. ☆
Sooo.... If time stops when observers see you traveling fast. Will time speed up when you see something slow down? If so, is there a constant that defines how fast time happens when you observe something not moving?
Suddenly she reminds me of Amy Adams in Arrival
I would say more Erin Burnett
Arrival is my all time fav movie...the opening and end scenes always get to me.
Unfortunately many people do not understand that Arrival is about time, and how we perceive it. Just read the IMDB user reviews; they think its about language and first contact.
Life Improvements ...I would say Erin Burnett too...it’s that bitchin’ hair!
Lol. I dont like her
So that's why when I dozing off or fallen asleep(brain slow down) sometimes time around us flowing so fast.
And when I really concentrated like when playing intense games or solving a difficult problems, I felt moving faster and time around me getting slower.
Is perception can affect time and space? Or just my imagination?
Michelle; intelligent, clear speaker and great teacher. I too am trying to understand the time space concept.
The fact that light doesn't experience time has always freaked me out too!
Every time I watch one of these videos, I end up more freaked out than b4 I watched it. She did a wonderful job- as always- explaining the concepts. The saying goes, " truth is stranger than fiction." In the study of the quantum world, everything appears to be counterintuitive and just plain bizarre. It's fascinating, riveting, and it will leave u with a sense of total confusion. At least for me!
I love just...listening to this woman teach.
its a stubbornly persistent illusion, that requires a biological entity to exist, without the observing entity, effectively a clock that watches its self, there is only motion and other independently acting forces in the universe. That's what will make quantum computing so very interesting.
Although I agree that the observer effect is very real and very strange, Im not sure I agree that you need a biolgical entity to observe time for it to exist.
More likely just a complex enough system that can experience change. Take radioactive deacy and half-life for example.
So atleast on a large enough scale, atoms and up, I do think its just systems with the possibility for change that is needed. Might be you dont even need that. But the deeper one goes into the web or foam of reality, from electron down to quantum, to planck lenght and possibly lower levels there might not be such a thing as time. But ofc entropy will play a role pretty far down/deep(maybe all the way to the "bottom" of reality, if there is such a thing+).
This does seem to be interconnected with the concept of spacetime itself. But yeah, dont think there is the need for specifically a biological entity for time to exert itself on reality. I could very well be wrong though :p
I just so love to hear her talk. She and Brian Green are so incredible!
*There is psychological time and there is clock time. The later one is an human invention. The first one leads to inevitable decay of this human body. Clock time is what stresses people out and makes them obsessed with experiencing everything there is, multitasking.*
This is like what Bhagwad Geeta also speaks...it's never we didn't exist and never we never died...it's happened time and again...decoding these scriptures in right perspectives will unravel many secrets of space n time
Thank you Michelle, my father is still alive, its just that we are on different time frame now.
islam said that we can see everything like at 04:40 , but later on "Here After" or "Judgement Day"
@@kampretmemanggila8649
And, it says the sun set in a muddy spring.
I think the block universe concept is more poetic than real and we should not take it literally. Also at 1:00 i almost had a heart attack.
Perhaps time is caused by the expansion of space itself...
You are on to something. Id call it growth of space-time rather than expansion. Tomorrow grows out of all of our yesterday's and now is the common temporal frontier that we conquer together to bring about that tomorrow, based on whats been but who knows what will become.
I can listen to her talk all day. Such a soothing voice
Amen. I feel exactly the same way. She is so pleasing and comforting to listen to.
😱😱😱😱💭💭💭💭💭
Boom goes my brain.
What a concept.
She is so great at explaining concepts. Keep up the great work.
the perspective of a photon is the whole universe, where time is compressed to a single moment?
Its not so much about time, from the perspective of a photon, it doesn't travel from the sun to your eye because there is no distance between the two.
Aaaaaand now you might enter the realization that the entire universe might have only 1 single electron in it.
such a great explanation!! Michelle is the best! 👏👏
She explained what we believe God “is”, in a scientific way and measurable way. Awesome! Science is getting so close. Science and God should never disagree.
Time can be manipulated in so many ways, I have missed time, lost time, gained time, wasted time, killed time, and even bought more time, just to name a few.
Very well explained!
Thanks for another great video
Wow, mind blowing words at times...nice!
Physics videos are always good on "Big Think". Unlike Social ones...
Maybe perhaps you're open to ideas in the Physics ones. If you already have a preconceived mindset about societal norms, then alternating theories may be "bad" for you.
@@videos-mn2ul Some can be enlightening, but many are just so unscientifically subjective that it's pretty fair to call them bad.
Videos 👏🏻👏🏻👏🏻👏🏻
@justsomeguy Think then comment? I mean I would but you have already narrowed the topic down to issues without any explanation at all.
@justsomeguy Or did you just quickly read my comment without considering the overall context of this thread to make a quick jab?
This was really an excellent description. I'd love to hear one of these that coordinates this notion with entropy and the arrow of time. How does the physical order of the Universe connect to, or "grab on," to the spacetime continuum to link dimensionality to process?
One of my favorite topics to debate 😎
So what is your supposition? So we can debate the subject? 🇬🇧👍😘 x
Here's how I think about it (and Einstein seems to agree). Time exists, what is an illusion, is the timeline. By timeline, I mean the belief that there is a concrete past and a concrete future. That they actually do exist and somehow, you can travel to a future or a past self. I believe that that's where the illusion is. I strongly also believe that this is why spiritual teachers insist on the power of now. The present. Because it is the only concrete time that exists. If you think of the present moment as a car, then the past and future are these illusions that are created as time moves along. It's just how you cannot live tomorrow, outside today. The past that you call a past, was a 'today'. The 'today' has moved to today. Not leaving a concrete past that you can run back to, but carrying that 'past' to this present moment. I hope I haven't gone far deep into the rabbit hole and your head isn't spinning, ha-ha.
Shrooms will explain everything she's talking about.
Careful, don't want to get stuck in time.
shrooms chemically destroy your brain, whereas this video will not. That is the difference...
By om
Everything destroys your brain 🧠
@@ineedmondayoff what a nonsense
By om
Surprisingly, the researchers saw that upon receiving psilocybin, the brain actually re-organized connections and linked previously unconnected regions of the brain. These connections were not random, but appeared very organized and stable. Once the drug wore off, the connections returned to normal.
rsif.royalsocietypublishing.org
Your statement is more nonsense than mine.
Omg Dave mustaine can I have an autograph???
I had to play at x2 because I’m on the space station.
Which one? ISS?
Nice one
Nope you didnt... because time dilation is only relevant to an observer. You on the ISS would experience time passing at a normal rate. You are kidding I know, but thought I'd mention it.
@@martinw245 you must be fun at partyies
@@drink15
Only when idiots are at parties
I love your clear and direct explanations of every topic! Sadly it's not common to see women physicists in youtube, but your explain yourself so good! Keep up this videos!!
while sitting, I am actually moving at amazing speed, I am moving at the speed of = speed of earth spinning + speed of earth surrounding the Sun + speed of solar system surrounding the Milky Way + speed of Milky Way galaxy moving
EK Lim Exactly right... Nothing in the universe is ever at "rest". E=MC2... mass is derived from kinetic energy. The faster mass moves, the more kinetic energy it gains. No motion = no mass, on the other hand, matter @ light speed = infinite mass.
@@heavyhitter8972 you completely misunderstood relativity. Your notion that stationary object has no mass does not make sense. I'm stationary relative to myself. Am I massless? You are also considering that there is an absolute center of the universe, but there is no centre.
@justsomeguy stop playing smart. You know what I mean. I'm speaking in terms of classical relativity here. You just changed the scale by adding quantum mechanics.
Heavy Hitter thanks but how does speed of light = infinite mass reconcile with Michelle Taller's mentioning of photon having zero mass even though it is moving at the speed of light
Drkwll Everything including light and matter are the result of the perturbation of a field. Nowhere in my comment did I imply there exists a center to the universe.
Her voice is incredibly satisfying to hear
Besides the effects of speed, gravitational space-time dilation compounds the relativistic effect: The further a satellite is from the center of Earth's gravitational field, the faster time goes relative to a surface dweller. So a GPS satellite experiences a slowing of time, due to its faster speed than a surface measurer, but also a speeding up of time due to it being further from the center of Earth's gravity well. They take both factors into account for GPS to work accurately...
How exactly do GPS satellites compensate for time dilation relative to the earth? How exactly does it occur? How significant is it?
www.quora.com/How-exactly-do-GPS-satellites-compensate-for-time-dilation-relative-to-the-earth-How-exactly-does-it-occur-How-significant-is-it
Real-World Relativity: The GPS Navigation System
www.astronomy.ohio-state.edu/~pogge/Ast162/Unit5/gps.html
The Speed of Light is NOT About Light | Space Time | PBS Digital Studios
ruclips.net/video/msVuCEs8Ydo/видео.html
Randy Caba ~ really interesting, informing comment. Thank you.
Jenn
_relative to a surface dweller_
Who is younger than their twin, a basement dweller...
Yes, gravitational time dilation and the special relativistic time dilation due to the orbital velocity are separable additive effects in weak gravitational fields (weak in comparison to what one might find in the vicinity of a black hole), and need to be accounted for separately. They are competing effects and, interestingly, roughly of the same order of magnitude for typical orbits. At lower altitudes (like that of the ISS), the special relativistic effect is more significant and clocks appear to run slower, while at higher altitudes (GPS and geosynchronous satellites) gravitational time dilation dominates and clocks appear to run faster.
Thank you Michelle! It's super interesting!
So if you move through time really fast - space slows down?
exactly, you know when people talk about how they saw a ball out of the corner of their eye, moving uber fast towards beaning them in the head, and time slowed down as they dodged the ball at the last millisecond.. and for them, in their reality, and only their reality, time slowed down from their perspective, because space was adjusting for the fast movement needed to dodge the ball thru time.. as they dodged the ball.. this is because they had to move..space had to compensate.. other than that, i cant really think about abny other way a person in modern day society, can move thru time fast.. lol.. maybe in the future, but now it only happens in our memories.
@@raidermaxx2324 humans are way to small-scale to give an accurate exemple,
if we go the speed of light, we move through space fast but time is slowed down
if we just stay still, time is as fast as it can be but you dont move through space
time is described with speed
but space is described with position
@@gameriffy2458 i know i wasnt being too serious.. :P.. I dont think this is a question any human being can answer or even make sense of , as of our current understanding of the universe and the physics involved..
Ms.Thaller should be everyone's professor before the time when people got scared of Physic.
The past, the present, the future, all of time and all of space exist all at once...I swear, I'm not on psychedelics, I'm on physics.
"...at the speed of light, time does not progress at all.
..Light does not experience time...It's something that actually exists outside of time, and yet we still interact with it."
Mind blown.
I can control space and time by smoking weed
ruclips.net/video/6SfNq6haYII/видео.html&t=24
but why. that would be interesting to find out
That's called wasting space and time, it's a common misconception. :)
It's sad that whenever someone says something smart and interesting, there's always at least one dumbfuck who feels the need to mention his drug habits to feel relevant. Weed doesn't make you smart and clearly doesn't make you funny either.
@@n4n1damn Hey, if you reach behind you and pull that stick that's shoved up your ass out you might feel better. Obviously my comment was boss since I got the highest upvotes on this video. You're just jealous your shitty comments don't get this many thumbs up!
This women is so great i can listen to her the whole time, wish she was my teacher back in the days.
From a photon's point of view, it is born and it dies in the same moment. It's VERY weird that we are interacting with particles who "live" like this.
what do you mean? can you please explain?
You did a great job explaining this topic. Would you please incorporate gravitational time dilation with this subject?
I love Michelle, but did she answer all these questions on the same day, or does she only have one shirt? Lol
It's a official uniform
It'd a single video rehashed to keep people coming back
If time and space are woven together and observable space is constantly expanding, does that mean that time is also expanding?...and if so is that why we experience time as linear as we have collectively expanded into more space?
Ironically, we measure the speed of light with units of time...
That is not ironic. The speed of light is absolute, so perhaps we should say that light defines time and space.
I see...Exactly how fast is the speed of light again?
@@peternichols9233 About 300,000km per second. You can find the exact figure easily if you want it.
@@nightjaronthegate, you just told me that light speed is constant, but units of time are not. Then, you defined the speed of light in distance per unit time. Seconds are time units. I want to know how fast light travels without using any units of time; if you can.
Well speed is related to time so it has to...
Thank you Michelle and Big Think team.
Michelle looks like Erin Burnett on CNN
CNN us shit
Is was so beautiful explanation, that anyone can understand this concept in given timeline of the video, Thank you Michelle for beautiful explanation! 😊
Time is the shadow of movement. Movement is real...time is inferred.
No movement no Time.
Shadow of movement? Expand?
@@Jess_uk.
Movement determines Time.
If there is absolutely no movement, there's no time.
Time is simply impossible *_in the total absence of movement._*
@@JappaKneads Time is the measurement of the space in between two movement's? But the fact that no movement occurs doesn't mean any movement will not occur and when and if it does then the interval has been measured so time was always been there to measure it? Am I getting things totally wrong, time goes on without movement and doesn't need movement? Just time? I'm confused LOL
@@Jess_uk. Time is NOT the measurement of the space in between movement. Time is the measurement of movememt itself. Space is not required for spin or rotation...movement is...
@@JappaKneads movement or no movement? Surely the fact that the distance in between the movement or action between two moments are measurable means that time was there whether it happened or not?
I knew it. We are all infinite beings.
"You've been dead for trillion of years"
Also "you haven't been born yet"
Lol what?
@Samael Yeah I remember a video that explained it like that....that it's all one snapshot
Watch the movie "Arrival".
It's all a matter of perspective. Of course this deeply complicates causality, but that's the fun thing about physics. It's not easy and every answer leads to 3 questions.
Time is the measurement of the duration or motion of particles. Or without measuring time, it is simply the rate at which particles are in motion.
Time only changes for the subject in motion through space, as the subject experiences it internally. It changes from the subject's individual experience. Time itself is not affected by anything in motion. It is simply the measurement or rate of that motion.
A poor choice of a word, light does not "experience" time. Light is not alive. Only conscious creatures can experience time and observe or measure the elapsed of time. The difference between time, or rate of changes, objects and the individuals go through can be measured. Such as she said between satellites in motion and people on earth experiencing time. One could say that light does not change over or interact with time, if that is what she meant.
Time is abstract. It is a measurement. Abstract things and measurement have no direction nor do they actually move. It is the human mind that perceives time as having direction and movement. This gives humans a sense of direction , spacial position and a sense of sequential order.
Space is the realm of physics that expanded from energy. Time is the rate or measurement of that expansion. Space and time seem to be one thing, but time is the measurement of the rate at which space moves. So throughout space there is time.
I am respectfully sorry, but Einstein was a scientist not a spiritualist. Once a person dies time stops for them and they no longer exist. That is scientifically proven. The past no longer exists and the future does not yet exist. The present is always what does exist, from the past toward the future.
While space is observable and there is tangible evidence of its existence time is abstract and a measurement. Space is the cosmos we observe but time is what we sense as changes take place.
This really puts Rebecca Sugar's Time Adventure into perspective.
Not only do away with time but also language, words. What would it be like without words? Everything would still be here now, the sky, air, trees, animals everything even people. People could still build things, grow food, eat, etc etc. no words, what peace and tranquility would there be without words, everything would just be. Imagine a world without words, people would just walk around looking at stuff. No words no commentary, no narrative, no judging of whether it is good or bad, right or wrong. What a quiet place it would be on the outside and inside of human beings.
Light does not experience time 🤯
Tracchofyre in German we have this nice word for people who like to get a tan: „Sonnenanbeter“. Literal translation would be sun-worshippers
Tracchofyre 😃
A photon of light can live thousands of years inside the sun bouncing around and then once freed it takes eight minutes to hit your face on a sunny day. For the photon, all of that took 0 time. It it's perspective, it was born and died at the same exact time.
We truly live in a magical world
We live in a complex world. Magic has nothing to do with it.
But when you think about instincts you when the hair stands up on your neck when something is wrong or the energy you can feel from other people the list goes on some can describe that as magic.
Guess speed of light = forever young 😁😂🤣
No, everything around you just gets older
Or forever old 😑
Interstellar always an inspiration...
As I understand it, it would be more precise to say that we do no experience light's time. For us, light does not change over time, since the change is infinitely slow? But light itself may still very well experience time, like all other fast moving observers do. How could we prove the opposite?
Thank you.
I have a solution to this problem...
Read more
P P Clever
Ya got me good 🤣
YOU HAVE HAD ME FOOLED AND TARNISHED MY REPUTATION AND HONOUR! FOR THAT YOU MUST PAY THE PRICE!
She is the best of all and her is mesmerizing too.