Later in the list he has Gödel Escher Bach - which seems unfathomable to read in a week to me. I used to keep this with me while I was working overnights - can't imagine you'd get much out of it if you read it in a week.

That said, my personal conspiracy theory is that he's using books he's already read as buffers for the longer harder books. If he doesn't really reread, and has read ~30% of the list already, it's much more reasonable.