Is Time Travel Possible? ⌛️ w/ Neil DeGrasse Tyson

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[Prae_Stat]

I always thought of it this way. If you could go back into the past then theoretically the world would have always been filled with time travers, billions of them, given that there is infinite time in front of us allowing them to do it

[Skizm_admin]

Literally the plot in back to the future 1

[mohdaamir]

Moral of the story : You can try to change your future, but you can't change your past !

[everyrickneedsamorty]

That part about the parents meeting each other is a mind F' on it's own... 😂

[Rem-vkif]

Going back in time is not about changing the past. Time isn't a line. If we went back in time and killed our parents, nothing would change for us. However, it would create another reality, another universe, where we'd never been born.

[LimakPan]

A logical assumption seems to be that going back in time won't send you there, but will instead rewind the universe. This way you do not break the continuum. Otherwise, we may assume that time isn't a certainty. If light doesn't experience it, maybe it doesn't have to stay linear for the universe to work.

[RadicalNomad]

I feel like as soon as one travels through time it would create an alternate reality. It wouldnt matter if your parents never met because u already exist .

[DDREVO]

This is how I think of it. Forwards and backward don't exactly exist but is the result of entropy, reason for this is because the energy needed to move time forward would be the same amount needed to move time backwards meaning every known atoms, particles, and everything else would have to be put exactly back to how it was unless you believe time as an alternative reality but in this case the Time Paradox would be solved i.e it would never happen since you would be visiting a separate reality.

[maxspiridellis]

It is possible. I saw a video and it talked about a person who has been spending his whole life on time travel to save his father from dying (it’s real and not just a story) but he’s spent his time doing this and figured out that in order to travel back you need a black whole. You need a rotating black whole to bring you back to the time the original black hole that the person made was invented.

[UnohanaMash]

it’s literally impossible. to truly go back into the past, you’d need to rearrange the molecules and atoms of the entire UNIVERSE back to their original state at that time

[jparker]

And a higher understanding of the universe was what Einstein meant when he said he found a problem with time travel and that was that the universe expands and doesn't travel in a circle.

[sezuin_]

You can't go into the past. Time is just a metric for events occurring, and light doesn't convey reality. To properly go back in time, you have to reverse the movement of molecules, not just go fast or slow enough compared to other things. That would only allow you to SEE events that have occurred, not interact with them.

[Blobster]

Whatever happens happened
-Daniel Faraday

[ronniemacthegr]

Wouldn’t going back in the past imply tht things/ moments are infinitely occurring? Which isn’t the case because once something is over it’s just over.

[ericgrosvenor]

We can go back into the past. That’s what our memories are for

[therealmagmalord]

I tend to think that even though you go back in time and prevent things preventing your life, youll still exist, i forget why i think this and dont feel like thinking it again. But now thinking about it with physics in mind, i realize, oh, this is probably different from what i thought.

[siddharthdraws]

Proboiz slowly transformed from a gamer to a movie director

[firstimpressionss]

Travelling into the furure or past would also alter who you actually are which would not effect the past or future it just gives insight into the moment you are travelling 2

[gettingthroughlife]

We are time travelling every second that passes 😉

[NikosKrepeniotis]

Time travel in the past is dangerous in many aspects. Considering that the whole solar system is moving, one shouldn't only calculate the time but the exact position in space. Otherwise the TT would end up mid air, into the ground, in space and other funny places.