Probably many a trillion times less likely. Already, in the history of genetic testing we’ve noticed two among billions, even with retrospective testing of anci

Probably many a trillion times less likely. Already, in the history of genetic testing we’ve noticed two among billions, even with retrospective testing of ancient DNA. While we haven’t tested all living humans, we certainly know the typical rate of fraternal twins, so, with that as a benchmark for how infrequent twins usually are, over millions of years, this happens even less. Even with lawlessness, relaxed social norms and the simultaneous sharing of sexual partners throughout history. Even with evolutionary ancestors like higher primates.