If you find yourself in a game of StarCraft, and ahead of your opponent, the worst thing to do is to try to wipe them out. This is counterintuitive. You have a better economy and a stronger army. Why not attack? The first reason is in game theory. StarCraft is very similar to rock-paper-scissors: you can defend (rock), attack (scissors) or build economy (paper). When your opponent is defending, they have the defender’s advantage and attacking straight in is unwise. The second reason has to do with non-linear growth. If your position is only 30% better, and both your economies...