We know about dye molecules diffusing in solution, or solvation, as entropic forces; they're not real forces but driven by thermodynamics. The increasing entropy gives us a direction of time. Dye molecules diffusing in water will never re-concentrate as a drop of dye in pure water. And yet, gravity can affect time, according to general relativity. Most importantly, it can slow the rate of time passage. This seems to be a very strong connection between thermodynamics and gravitation. I think then that the gravitational waves are an entropic process: stable orbits would violate thermodynamics as that's a closed system with a spontaneous process yet is not increasing in entropy; orbits must decay (as we see with gravitational wave emission) simply due to entropic considerations. So how does time dilation, black holes, etc. factor into a possible thermodynamic view of the universe? Can heat affect time, as RMS velocities approach relativistic speeds? Are there any more examples of interesting phenomena in gravitation fully explainable by a thermodynamic view?