The Rules of the Game
	v A game in the sense of a simple set of rules that can give rise to complex behavior, rather than in the sense of several players competing. v The game is played on a 2 dimensional array of cells. v Each cell is either alive or dead.  We are given some starting configuration of live and dead cells. v At each step, we compute the next state of the array. v The game continues indefinitely, although obviously you'll want to stop it at some point.