December 20, 2018
December 20, 2018 11:10 AM EST
If you could go back in time, what would you do differently? Or, would you prefer to fast forward and see what the world is like in the future?
While time travel doesn’t exist at the moment, it might be possible according to theory.
Physicist Albert Einstein theorized that time is relative depending on how fast you travel.
For example, the faster you move in space, the slower you move in time.
To a certain extent, astronauts at the International Space Station are already time travellers in the sense that they are doing things at fractions of a second in the future.
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