When somebody outside of a specialisation comes up with an idea that'll overturn the entire field, they're usually wrong.
Besides, it looks like he's just publicizing what another PhD geologist and PhD archaeologist have been researching.
I have no idea if either one is right, but it's more credible to argue with their data--not the club they belong to.
When somebody outside of a specialisation comes up with an idea that'll overturn the entire field, they're usually wrong.