Penrose, huh. I was reading the intro to Scott Aaronson's new book on quantum computing, and in it he says,

> More pointedly, one wonders who the audience for this book is supposed to be. On the one hand, it has way too much depth for a popular book. Like Roger Penrose’s _The Road to Reality_ – whose preface promises an accessible adventure even for readers who struggled with fractions in elementary school, but whose first few chapters then delve into holomorphic functions and fiber bundles – _Quantum Computing since Democritus_ is not for math-phobes.