Is There a Steak in Keller's Theorizing?

Daryl: Keller starts off with very sweeping theory, a very potentially compelling vision. He goes in with that very big soaring picture, and then he get to the end with the action items, and there's not much there. Resby: It's really quite impressive, because there were at least two or three times where I nearly dropped my phone into this giant jacuzzi tub from which I've been recording this episode.