i*****s 发帖数: 4596 | 3 A counter-intuitive manifestation of a zero-one law: according to computer
models. everyone who was alive in 3000 BCE is either an ancestor of
everyone alive today (including people in extremely remote and isolated
communities), or else an ancestor of nobody alive today; furthermore,
someone alive as recently as 1000BCE is also the ancestor of everyone alive
today. |