Title: Too much of commitment
Product review: This book requires a great commitment from the reader. I have a B.S. degree in physics and I found parts of it confusing. I should think that you would want to have recently studied calculus & complex analysis. The hard work required does not lead to a great reward. Penrose's Twistor theory has been around and dismissed for a decade or more. Combining this book with The Emperors New Mind and I start to get the idea that Penrose is kind of a crack pot.This book is very difficult to follow and does not lead one to the road to reality, only a little madcap corner of it.
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