Bhamv, it's not a big deal. Everything descends into cannibalism eventually.
It's why one of my dates didn't end up working out. Food was lovely though.
Dave, invent time travel and go back in time to back roll20 on kickstarter, allowing you to be a gm on that while it's in closed beta. That system is nice.
Oh god no. Knowing everything is basically impossible. All you need to know is the vocabulary, how to calculate things, and what your character can do. And most of that should be written down beforehand.