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!