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Fabrications? Yes, this is a well-written and intriguing book. It is also quite thought-provoking in places. THE PROBLEM IS...... as you will be well aware of if you are a physicist, physics student or simply watched the PBS TV presentation and listened to the physicists disagreeing with Greeene on string theory therein-Or, above all, read the recent New York Times article in which one prominent physicist commented that, while it was lamentable that Einstein wasted the last years of his life pursuing the unverifiable "Unified Field Theory," it was tragic to see a whole generation of the best young physicists pursuing the same sort of unverifiable chimeras......IT'S SPECULATIVE. Nothing's wrong with speculation. It's just that one becomes rather frustrated with reading such fascinating conceptualizations of the nature of different aspects of the cosmos only to read in the end that "of course this can't be verified as of yet, maybe never." After a while, one is overcome by this creepy feeling of rereading a slightly less whimsical version of "Through The Looking Glass"-Lewis Carroll had a degree in Mathematics from Oxford as well. The physicist Richard Feynman (whom Greene clearly admires) once described theoretical physics as "imagination in a straight jacket." Greene seems to have cast off the straight jacket and decided to chase after what may turn out to be, after all, white rabbits.