Can you really reach anyone in six steps?
Veritasium unpacks the beautiful math of “six degrees of separation,” showing how a mix of random shortcuts and everyday weak ties turns vast social networks into tiny worlds. You’ll see how Duncan Watts’ small‐world model and Albert‐László Barabási’s hubs naturally emerge, making surprisingly short paths between any two people.
Along the way, we simulate disease spread, watch how information (and viruses) zip across our networks, and learn how preferential attachment creates superstar nodes. Spoiler: your own behavior—who you befriend, share with, or isolate from—can literally reshape the world’s connectivity.
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