Oh wow, now this was a fabulous gem of a story. Falling into Neumann's head was easy, he reminded me of a grown-up scientist version of Christopher John Francis Boone a little. And the whole idea of the book, though not novel ('xcuse the pun) played out remarkably well in such a way that I couldn't put it down.

The second of Barry's books I've read and the second I have utterly loved, I think this may well make it to my rereading pile.