I might be misunderstanding Graeber, but I thought his point was that by viewing play through the calculus of evolution and survival probabilities, scientists h

I might be misunderstanding Graeber, but I thought his point was that by viewing play through the calculus of evolution and survival probabilities, scientists have not paid as much attention to the fact that play is fun. How did animals come to play? Because it allows them to explore their environment and increases their evolutionary fitness. Why do animals continue to play? Because they enjoy it.