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AMA | September 2023
Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas
Temperature is not the average kinetic energy of atoms.
In classical mechanics, temperature is described by a probability distribution over moving states. In quantum mechanics, temperature is a sum over states that are not moving themselves. This difference is relevant for the Boltzmann-Brains problem, where we consider the intrinsic behavior of the system.
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