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The Goldilocks Enigma
Davies devotes much of the first half of the book to explaining the concepts of modern physics and cosmology. Remember, however, that this is a speculative book, rather than one designed to teach you physics. For instance Davies mentions the Hawking-Penrose singularity theorems, but a few pages later says 'A disorderly arrangement of particles moving according to general relativity will generally not all converge to a point' - well my impression is that singularity theorems were proved to show that they will. Now Davies may be justified in saying what he did, but I felt that an opportunity was lost to clarify a difficult subject.