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Physics Quote by Lee Smolin

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““Quantum mechanics has to be expanded, to allow for many different descriptions, depending on who the observer is.””

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More by Lee Smolin

“This unification of forces and motion has a simple consequence. In a particle theory, you can freely add all kinds of forces, so there…

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“One field Faraday studied was the electric field. This is not a number but a vector, which we may visualize as an arrow and…

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“It is interesting to note that the quantum-mechanical revolution was made by a virtually orphaned generation of scientists. Many members of the generation above…

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“In fact, the particle-antiparticle annihilation and the closing of the string is necessary, if the theory is to be consistent with relativity, meaning the…

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Every string theory that's been written down says the speed of light is universal. But other ideas about quantum gravity predict the speed of…

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“Unfortunately, no one has ever successfully postulated a super-symmetry holding between two known particles. Instead, in all the supersymmetric theories the numbers of particles…

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Those who do good science do so because they choose problems that are suited to them.

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“Here's a simplified version of what the Stanford group did. They started with a much-studied kind of string theory-a flat four-dimensional spacetime with a…

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“The current crisis in particle physics springs from the fact that the theories have gone beyond the standard model in the last thirty years…

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“By the time I began my study of physics in the early 1970s, the idea of unifying gravity with the other forces was as…

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“These two discoveries, of relativity and of the quantum, each required us to break definitively with Newtonian physics. However, in spite of great progress…

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“So the challenge for any quantum theory of gravity is to give us a deeper understanding of Bekenstein's entropy and Hawking's temperature.”

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