In his book Do We Need God to be Good? anthropologist C.R. Hallpike quotes mathematician Kevin Devlin:
“Whatever features of our brain enable (some of) us to do mathematics must have been
present long before we had any mathematics. Those crucial features, therefore,
must have evolved to fulfil some other purpose.”
This sort of statement is incredibly common among evolutionary psychologists and biologists, but “some other [undefined] purpose”
is pretty much the best they have to offer the world. The gaping holes in their
theoretical framework are orders of magnitude larger than the frame itself,
calling their entire dubious intellectual structure into question.