A body traveling for infinte time

[phinds]

Mass can neither be created nor be destroyed.

Uh ... this is nonsense. have you ever heard of the atomic bomb?

( universe is expanding = universe is shrinking )

More nonsense

 

[Varun Bhardwaj]

Thanks you all for finding my mistake.

 

[A.T.]

No, it won't ever reach it. How could it? the galaxy is moving away at superluminal speeds.

Your misconception is explained here (at 1:40):

https://www.youtube.com/watch?v=XBr4GkRnY04

 

[dauto]

Your misconception is explained here (at 1:40):

https://www.youtube.com/watch?v=XBr4GkRnY04

Yeah, I saw that.

 

[stevendaryl]

Infinite time does not and cannot exist, so why bother trying making a thought experiment that begins with an impossibility?

I think that's just his way of saying: If we wait long enough.

 

[xAxis]

Quote by Bobbywhy

"Infinite time does not and cannot exist, so why bother trying making a thought experiment that begins with an impossibility?"

What do you mean? If expansion o the universe is accelerating, then time will always exist.

 

[phinds]

Quote by Bobbywhy

What do you mean? If expansion o the universe is accelerating, then time will always exist.

Yes, and what does that have to do with the statement that infinite time does not exist?

 

[Khashishi]

There's another problem with the original question. There isn't a unique way to define the same point in space at two different times. This is because velocities are relative and there is not a unique point that can be considered to be at rest. At large scales, it is possible to use the cosmological microwave background as a reference for absolute rest, but the laws of physics don't require this at all.