Brian Greene Quotes About Physics
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When I give this talk to a physics audience, I remove the quotes from my 'Theorem'.
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Free will is the sensation of making a choice. The sensation is real, but the choice seems illusory. Laws of physics determine the future.
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All you are is a bag of particles acting out the laws of physics. That to me is pretty clear.
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The bottom line is that time travel is allowed by the laws of physics.
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...quantum mechanics—the physics of our world—requires that you hold such pedestrian complaints in abeyance.
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Before the discovery of quantum mechanics, the framework of physics was this: If you tell me how things are now, I can then use the laws of physics to calculate, and hence predict, how things will be later.
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Physics grapples with the largest questions the universe presents. Where did the totality of reality come from? Did time have a beginning?
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That is, you can have nothingness, absolute nothingness for maybe a tiny fraction of a second, if a second can be defined in that arena, but then it falls apart into a something and an anti-something. And that something is then what we call the universe. But can we really understand that or put rigorous mathematics or testable experiments against that? Not yet. So one of the big holy grail of physics is to understand why there is something rather than nothing.
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Assessing existence while failing to embrace the insights of modern physics would be like wrestling in the dark with an unknown opponent.
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In quantum mechanics there is A causing B. The equations do not stand outside that usual paradigm of physics. The real issue is that the kinds of things you predict in quantum mechanics are different from the kinds of things you predict using general relativity. Quantum mechanics, that big, new, spectacular remarkable idea is that you only predict probabilities, the likelihood of one outcome or another. That's the new idea.
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