In a similar vein, I saw this linked from HN not too long ago and thought it was a really neat application of the birthday paradox--all about finding duplicate

In a similar vein, I saw this linked from HN not too long ago and thought it was a really neat application of the birthday paradox--all about finding duplicate packs of Skittles: https://possiblywrong.wordpress.com/2019/04/06/follow-up-i-found-two-identical-packs-of-skittles-among-468-packs-with-a-total-of-27740-skittles/ https://possiblywrong.wordpress.com/2019/04/06/follow-up-i-f...