This is a fascinating insight into the world of theoretical physics from an acknowledged authority. The majority of the book is a thoroughly enjoyable tour of ideas that occupy the minds of theoretical physicists. The book is very well written and the author draws the non-specialist into his world such that the concepts can be appreciated without the mathematical skill required for a deep understooding. The narrative is frequently punctuated with humour and I found the anecdote recorded near the bottom of page 245 hilarious. The concluding part of the book focuses on the politics of science. The author argues that new post-docs are faced with a stark choice of securing a tenured position in mainstream theoretical physics (String Theory) or risk financial hardship pursuing something new. From these pages the author emerges as a man of integrity and considerable courage. Highly recommended.
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