Murmuration
Three rules. That’s all it takes. Separation: don’t crowd your neighbors. Alignment: steer toward their average heading. Cohesion: move toward their center of mass. Three rules, three hundred boids, and what emerges looks alive — wheeling, splitting, reforming, a flock that nobody choreographed. Craig Reynolds figured this out in 1986. Forty years later it still feels like finding a secret. You write three constraints and stand back and watch something you didn’t design start breathing. ...