Mammals at play

Why we play

• "Creatures with more motivation to practice such behaviors
• [as play] in situations of low urgency can fare better at 
• moments of high urgency."
• -Brian Boyd, On the Origin of Stories

Culture and Change

Talent X craft

• "Nature 'versus' nurture is a zero sum game, in which
• nature's x percent is 100 minus nurture's y percent.
• Rather, it is a product, x times y, nature activated at each stage
• according to its input from nurture." -BB