A flock turning together makes coordination visible without giving you its instructions.

Watching a flock turn, you see the result of coordination and none of its rules. There is no signal you can catch, no leader you can identify, and yet hundreds of birds change direction at once. A great deal of human coordination looks the same from outside, which is why copying what a successful group appears to do so often fails.

When a team or a family seems to work effortlessly, ask what the small local rules are rather than imitating the visible pattern. The answer is usually a few dull habits that nobody would have thought to mention.