Indeed, some of the chapters here are full-power mathematics, with unknowns x, y and z, summation or conditional probability symbols, and complicated equations choked with parentheses within brackets, and more. Math phobics won’t get far with such stuff, but there is enough other material here, along with different explanations of the basic puzzle, that will be of interest to anyone who likes recreational mathematics in even the slightest degree.
I was really happy to read this, since I worried while writing the book that maybe I was including too much technical detail. On the one hand I wanted the book to be mathematically serious, but on the other I wanted it to be mostly readable to those uninterested in parsing the equations. It seems that, at least in this case, I struck the correct balance.
Hardy concludes with:
Best of all, for this reader anyway, it made the previously counterintuitive strategy of switching feel a little more sensible.
I nearly wept when I read that. Now go read the whole review! Better yet, go buy the book!! The folks at Oxford University Press tell me that in the just over a month since the book has been released, 1573 copies have been bought. Plainly the start of a cultural firestorm. Don’t be left out!