Entropy can decrease, it's just statistically unlikely. It's a "law" due to the law of large numbers, not because the transitions are forbidden. Another way to

Entropy can decrease, it's just statistically unlikely. It's a "law" due to the law of large numbers, not because the transitions are forbidden. Another way to phrase this is that there's no law of nature the says your pool balls can't end up neatly racked after the break, but you'd still never expect to see that happen.