Some have claimed that for humans the coalescence to one (or first coalescent) does not happen for well over a million years back in time, calling into question the idea of a single-couple human origin.
This particular shambling zombie takes another punch now with news about identical twins.
What Dr. Swamidass has going for him is primarily a quirk of semantics.
If textbooks evolve, then what we thought we knew yesterday is no longer true today.
There’s a famous scene in an Indiana Jones movie where the hero barely makes it under a closing gate descending on him in an underground tunnel.