His previous partner started leading him down what I regard as a bad direction. He's a competent geologist, he's had interesting insights, but he isn't for example a competent astrologer, because, y'know, astrology is incompetence. He's also wandered off into Bauval's delusional system.
Given his Yale pedigree, and the looneybirds he's dated/married, I guess it's safe to assume he's a Biden voter?