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It is important to distinguish between the time and the flow of time. The time, $t$, is just a coordinate like $x$, $y$ and $z$ that we use to specify points in spacetime. The time coordinate doesn't have an arrow any more than $x$, $y$ or $z$ have arrows. The time axis has a negative and positive direction, just like the spatial coordinates, but at normal ...

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One may still describe the behavior of such a system at maximal entropy using a theory that does use the concept of time, or the time coordinate $t$. But it is true that operationally speaking, the passage of time ceases to exist because the equilibrium associated with the maximum entropy is incompatible with the existence of thinking observers. Note that ...

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We know particles that exists outside of time: Photons, travelling at the speed of light, see their path (and their lifetime) relativistically contracted to a point (and an instant of no duration). It must obviously be mathematically possible to describe what happens to a photon in its own rest frame. We just do not know how: Just changing our frame of ...

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No complete formulation of physics without time is possible. To be physical, a formulation must explain and predict the observable universe, of which time is a fundamental feature. In a timeless formulation, no quantities can change and no events can cause or be caused. Since we overwhelmingly find that quantities do change and events have causal relations ...

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In my opinion there is a misunderstanding here in what the arrow of time means, entropy and what time is. Time is a way to measure changes in space:dx/dt ,dy/dt , dz/dt. Take a contour map. If there were no time, the contour is invariant. In a similar way that if there were no dx/dy, dy/dz,dz/dx ... three dimensional space would be an unchanging invariant ...

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