T-Rex: Any machine that travels through time has to be a machine that travels through space as well! I've been saying this for years.
T-Rex: Because dudes, the Earth is spinning on its axis!
T-Rex: And it's whipping around the sun, and the sun is rotating in the arm of a galaxy that's also whipping around the Universe. You go back in time without travelling through space, you're likely to find yourself alone in the vacuum, millions of kilometers behind the Earth you left a (relative) instant ago!
Utahraptor: Perhaps! But this problem only comes up if you're not the centre of the Universe.
T-Rex: Huh?
Utahraptor: If you're not the centre of the Universe, then you're perched on an Earth that's whipping through space, and sure, there's problems from that. But if you ARE the centre of the Universe, then everything's revolving around you! You can go through time without worry, because you'll always arrive right where you started.
T-Rex: Oh, wow! This means that if we can travel through time, then we can also SCIENTIFICALLY PROVE whether or not someone is actually the centre of the Universe.
T-Rex: Science keeps surprising me in surprising new ways!
