I love it how the press reports this result as if the family tree had a single root.
A family tree has two parents, four grandparents eight grandparents, etc. Out of the 2^n ancestors in the n-generation, two branches standout, one the fully male one carrying the Y chromosome and the other the fully maternal line, carrying mitochondrial DNA. There are good mathematical reasons why such lines come to be dominated by a few individuals over the centuries if not millenia yet the press makes it sound like Warren Beatty was alive 100K years ago fathering each and every one of us. As someone else pointed out, if somehow I became Will Chamberlain and happened to father 10K daughters but no male offspring, the Y chromosome line would makes it look like I ws never there though in practice I'd be the (grand) daddy of half of New York within a few generations.