If I remember right, I have on several occasions read that the second law of thermodynamics is a consequence of the very unlikely initial state of the universe, and that it is this "potential" that drives the universe. I would rather give the credit to the fact that the universe can expand, since *any* initial state (even a "maximally relaxed" one) will become less likely, or even impossible, to re-occur as the universe expands. In a non-expanding universe on the other hand, the probability of a maximally relaxed initial condition to re-occur would be quite likely in comparison. As the universe expands, particles without volume will have access to an increasing number of states since they can occupy a larger number of positions in space. This, from my current point of view, would be a better explanation of the second law of thermodynamics. Are my arguments flawed, or have I just read the wrong books?