> they all share many common ancestors, but that those common ancestors are probably shared by many others as well so it's not very unique. That's my point. B

> they all share many common ancestors, but that those common ancestors are probably shared by many others as well so it's not very unique. That's my point. By "common ancestor" I meant, common ancestor common to them only. That's what I find to be unlikely. And yes, you are right about this. There is plenty of vids on YT that explain the math