Eventually, the generator and the discriminator begin to agree more as they settle into something called Nash equilibrium. This is arguably the central concept in game theory. It represents a kind of balance in a game—the point at which no players can better their personal outcomes by shifting strategies. In rock-paper-scissors, for example, players do best when they choose each of the three options exactly one-third of the time, and they will invariably do worse with any other tactic.

This last sentence is completely wrong, yeah?