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From the Blog
Are We Living in a Multiverse? Why We Might – and Why We Might Never Know
Simon Friederich, author of Multiverse Theories: A Philosophical Perspective discusses the “multiverse” idea. What the idea entails and whether it can truly be tested.
Why do we need a second edition? An Author’s Explanation
Why would anyone write a new edition of a book that is still selling after many years? The explanations of the basic theory in the first edition are still valid, and the methods are still the ones that are most widely used. However I still felt an update …
One of the greatest challenges in fundamental physics is to reconcile quantum mechanics and general relativity in a full theory of "quantum gravity”. It is a challenge that has by turns excited and frustrated physicists, for nearly a century.