Well, going faster than the speed of light isn't possible, but if compressed really well, you could theoretically send massive quantities of data really quickly.
For example, if you want to play a game with someone who's on the other side of the world (or the galaxy) without that annoying lag imposed by relativity, you can simply have them send you a full scan of their brain, and then you can simulate it locally (not necessarily in your computer, it can run in the nearest Google MindSharing Center™).
Heck, you don't even need to play the game yourself. Send Google a copy of your brain too, and they will simulate the encounter in their servers and insert the memory in your brain when they're done. EVERYTHING can run in the cloud!
