You're Being Copied Right Now

Somewhere in a cafe right now, a man just crossed his legs — and eleven seconds later, the woman across from him crossed hers. Neither of them decided to. This video is about the hidden setting that syncs your posture, your voice, and even your answers to the people around you: the lab that caught it on hidden cameras, the 1947 classroom films that staged it before science named it, the waitress who doubled her tips with one trick, why applause locks into rhythm, and the two tests this video runs on you, live. Chapters: 0:00 The cafe experiment 0:34 Meet your guide 0:47 The lab that proved it 1:27 The flip: copying makes them like you 2:11 1947 already knew 3:00 The waitress trick 3:34 Two thousand people syncing 4:46 TEST 1: the yawn gauntlet 5:38 TEST 2: the line test 6:31 Why brains ship with this 7:02 The payoff Archival film: "Are You Popular?" (1947), "How to Say No: Moral Maturity" (1951), "A Touch of Magic" (1961) — Prelinger Archives / Internet Archive (public domain).