And it is this thermal and quantum time, I believe,88 that is the variable that we call “time” in our real universe, where a time variable does not exist at the fundamental level. The intrinsic quantum indeterminacy of things produces a blurring, like Boltzmann’s blurring, which ensures—contrary to what classic physics seemed to indicate—that the unpredictability of the world is maintained even if it were possible to measure everything that is measurable. Both the sources of blurring—quantum indeterminacy, and the fact that physical systems are composed of zillions of molecules—are at the
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