Synchrony as a general and widespread phenomenon

I once asked @stevenstrogatz a simple question.
Why do so many systems in nature fall into rhythm?

He smiled, almost amused by how deep that question actually goes.

Fireflies blinking in unison.
Heart cells pulsing together.
Crowds swaying on a bridge until it starts to move… pic.twitter.com/xSa60Fu10K

— Christopher Michel (@chrismichel) April 12, 2026