It's not often you can point to an indie game as the perfect illustration of a core scientific concept, but here we are. Einstein's theory of relativity lays bare the relationship between space and time. They're essentially aspects of the same thing - spacetime - and as you travel through space at the speed of light, time flows very differently than it does for the people you've left behind. At light speed, a journey that may take a few hours for you would be years for everyone else. 8/10