The Problems with Secret Santa - Numberphile

Dr Hannah Fry discusses Secret Santa, anonymity and derangements. And a better way to do it. More links & stuff in full description below ↓↓↓ More Hannah on Numberphile: Hannah’s co-written Xmas book: Hannah’s love/math book: Numberphile poster: Graham’s Number T-Shirt: Other Numberphile T-Shirts: Hannah on Objectivity: Support us on Patreon: NUMBERPHILE Website: Numberphile on Facebook: Numberphile tweets: Subscribe: Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): Videos by Brady Haran Brady’s videos subreddit: h