Veritasium: Something Strange Happens When You Trace How Connected We Are

Something Strange Happens When You Trace How Connected We Are

Veritasium unpacks the beautiful math behind “six degrees of separation,” showing how tiny shortcuts and “weak ties” turn vast networks into tight-knit small worlds. You’ll see simulations of disease spreading in just a handful of steps, learn why network hubs inevitably dominate, and discover how preferential attachment drives those superstar nodes.

Along the way we tackle Strogatz’s viral calculations, Barabási’s hub revelations, and even dip into the Prisoner’s Dilemma—proving that your behavior, no matter how small, can echo across the global network.

Watch on YouTube