Want to blow up the world?
My headline to this review is tongue-in-cheek.
Very many of the answers to the sometimes silly, but "made-you-think" questions which Mr. Munroe creates end up blowing up at least the questioner, maybe the world and sometimes everything! He does develop his reasoning well in each.
However, I would ask Mr. Munroe to take the summer/fall/winter or spring off and evaluate his apparent conviction on the validity of evolution. I do think he will find such an effort very challenging and, hopefully, fully rewarding. 2+2=4 is truth in a rational world. Evolution is not.