HackerTube / Video
Sasquatch music festival 2009 - Guy starts dance party
dkellerm

Amateur footage from the 2009 Sasquatch music festival in which one person starts dancing alone and a crowd gradually joins in, turning it into a dance party.
Used as the classic example of a lone first follower turning one person's action into a movement, in threads about bystanders and group behavior.
4 Hacker News mentions · 2009–2022