Thus the book begins with a nearly fatal bicycle accident which happened when he was a teenager (and the various quantum mechanical ways it might have been fatal!) and throughout the book, there are various anecdotes, for example about meeting the amazing Princeton physicist, John Wheeler. Besides, he combines all this science with personal anecdotes about his own life and times: from his growing up in Sweden, to his later career in the USA. He writes clearly and wittily about all the mind-bending ideas which his book expounds: not just the established physics of relativity, cosmology and quantum physics, but also the controversial possibilities - those four main ways for the cosmos to be bigger and stranger than you would have thought - that he wants to convince you about. Then the second main way is the level II multiverse and so on till we get to the level IV multiverse.īut fear not: Max Tegmark is not only a gifted and distinguished cosmologist. So he calls the first main way it is bigger - the first main way he wants to surprise and unsettle you - the level I multiverse. Each represents such a vast extension of what we usually call the cosmos (or Universe) that he suggests we should use the word multiverse for these extensions. Tegmark argues that it is bigger and stranger in four main ways, each one building on the last. Indeed, it is bigger and stranger in ways you probably have not thought about - even though you are a reader of Plus, and so of course both very clever and very imaginative! The message of this book is that the cosmos is much bigger, and much stranger, than you might have thought. Our mathematical Universe: My quest for the ultimate nature of reality by Max Tegmark
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