Exactly, saying that's all there is to know about entropy is like saying all you need to know about chess are the rules and all you need to know about programmi

Exactly, saying that's all there is to know about entropy is like saying all you need to know about chess are the rules and all you need to know about programming is the syntax/semantics. Knowing the plain definition or the rules is nothing but a superficial understanding of the subject. Knowing how to use the rules to actually do something meaningful, having a strategy, that's where meaningful knowledge lies.