The 2nd law states that "Any large system in equilibrium will be found in the macrostate with the greatest entropy (aside from fluctuations too small to be measured)." This is saying any system will tend (over time) to exist in the state with the greatest multiplicity or entropy. In other words it will tend towards states that have increasingly greater probabiliy. Is this not by definition true? Because probabilities are calculated with how likely an event will occur. The highest probability => most likely senario if given the opportunity for long enough. So by itself the system will always tend toward states that are more probable by definition. This would mean that the 2nd law is not based on empirical observation hence will be true in any universe or system.