Like, I think in terms of a musical instrument; if it’s played and played and played and played, over time it’ll get out of tune. And I would think the various physical “constants” of the universe would work in roughly the same way – over time, there’d be variations due to entropy. But, for example, the speed of light in a vacuum is constant, and continues to be constant. If entropy is an unavoidable aspect of our universe, shouldn’t it affect the speed of light in a vacuum too? Wouldn’t we expect to see some sort of slowdown or at least variation over time as a result of entropy?
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>But, for example, the speed of light in a vacuum is constant, and continues to be constant.
It is constant by definition (and only for inertial frames). If tomorrow Einstein v2 comes up with a completely different (but more empirically accurate theory) that doesn’t define it as constant, it won’t be.
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