Heat (temprature) itself too, is an emergent property. It doesn't exist when you go down to the individual atoms. It's a property that happens on the macroscopic when there are lots of atoms bouncing around, a measurement of their <b>average kinetic energies</b>.

I slightly mentioned that when talking about the "spilled milk" example and I quote:
<blockquote><sup>...what forces can prevent it from going back. Well, we got gravity of course, air pressure, surface tention, and of course the <b>dissipated kinetic energy</b>, to name a few. The point is, not a single reason you can find that itself isn't emergent.</sup></blockquote>

So, for sure. Temprature as an emergent property does interfere with the reversal for the macroscopic. It's part of the "pile-up" I talked about, but it's not fundamental. 🙂