But in <answer>statistical mechanics</answer> things get more complicated. On one hand, <answer>statistical mechanics</answer> is far superior to classical thermodynamics, in that thermodynamic behavior, such as glass breaking, can be explained by the fundamental laws of physics paired with a statistical postulate. But <answer>statistical mechanics</answer>, unlike classical thermodynamics, is time-reversal symmetric. The second law of thermodynamics, as it arises in <answer>statistical mechanics</answer>, merely states that it is overwhelmingly likely that net entropy will increase, but it is not an absolute law.
What are superior to classical thermodynamics?
statistical mechanics