There is some circular reasoning in the book (why should we care about our future / parallel branches / past selves), and some questions on self-reciprocity are left unanswered. Also, author tries to substantiate certain strategies (e.g. transparent-boxes version of Newcomb problem) on unfounded future self / parallel branch proposals, while much simpler precommitment notion would suffice.

Overall, this is a great though somewhat dull account on subjective human experiences, thinking and deciding.