Three Roads to Quantum Gravity: A New Understanding of Space, Time and the UniverseThe Holy Grail of modern physics is the search for a 'quantum gravity' view of the universe that unites Einstein's general relativity with quantum theory. Until recently, these two foundational pillars of modern science have seemed incompatible: relativity deals exclusively with the universe at the large scale (planets, solar systems and galaxies), whereas quantum theory is restricted to the domain of the very small (molecules, atoms, electrons). Here, Lee Smolin provides the first accessible overview of current attempts to reconcile these two theories.Written with wit and style, Three Roads to Quantum Gravity touches on some of the deepest questions about the nature of the universe  are space and time continuous or infinitely divisible? Is there a limit to how small things can be?  while speculating on what developments we can expect at the frontiers of physics in the twentyfirst century. 
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Review: Three Roads To Quantum Gravity
User Review  Lucas Ventura  GoodreadsLee Smolin does an excellent job of detailing the current exploration in physics for a quantum theory of gravity. Most of the "physics for nonphysicists" books I'd read were a bit dated (In Search of ... Read full review
Review: Three Roads To Quantum Gravity
User Review  Carl Stevens  GoodreadsDo you know a similar book with a little more technical detail? This was an excellent popular treatment of quantum gravity and related topics but I have read several popular treatments now and find ... Read full review