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Is the purpose of theoretical physics to be no more than a cataloging of all the things that can happen when particles interact with each other and separate? Or is it to be an understanding at a deeper level in which there are things that are not directly observable (as the underlying quantized fields are) but in terms of which we shall have a more fundamental understanding?
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― Quantum Mechanics: Symbolism of Atomic Measurements
― Quantum Mechanics: Symbolism of Atomic Measurements
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Einstein on time travel:
"People like us, who believe in physics, know that the distinction between past, present, and future is only a stubbornly persistent illusion.
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