What I like is it’s not a vague “we’re all connected” thing. I can actually TRACE the connections through real people.
Just did one of my favorite authors from high school.
Jorge Luis Borges is your 20th cousin thrice removed.
Mathematically, it’s easy to poo poo how much similarity there would be *yet* when you consider each of the subsequent pairings might *also* have genetic similarities that could amplify effects, 20th cousin might actually turn out to be a lot closer genetically than it seems.