Is time travel possible?

[Spock]

Roma said:

it's not possible

if time was fluid it would be possible to go back and forth but it is like dot traveling forward leaving nothing but history behind it.

imagine yourself moving around, you move with yourself and not in front or behind yourself :P

I can confirm that time travel is possible.

Ever heard of time dilation? If not, review it.

This matter concerns Einstein's Theory of General Relativity. One can move forward through time more slowly relative to another region of spacetime.

Examples are the astronauts who frequent the international space station. These astronauts are a few billionths of a second younger relative to people on Earth because of the gravitational potential differences.

Earth's Surface gravitational potential is 60 MJ/kg.

LEO (Low Earth Orbit) gravitational potential is 57 MJ/kg.

The lower the gravitational potential, the slower time passes.