Yes, as Terence McKenna says, the human brain evolved too fast for the theory of evolutoin to explain. Which is particularly embarassing for the theory of evolutoin, because it is the organ that created it :D

I do lean towards the idea of evolution (or revolution) coming from a small vanguard, which spreads. Lots of authors point to this, not just Wallace-Darwin, but Vico, Spengler, Joyce, (later) McLuhan, and many others all had something to say about these cycles, particularly, technology cycles.