I actually wrote way back at the start about encapsulation and inheritance (along with message passing). So I'm not sure my definition really is overly broad.

I actually wrote way back at the start about encapsulation and inheritance (along with message passing). So I'm not sure my definition really is overly broad. I'm also mostly talking about the runtime consequences of the things that most people worry about at the time of programming. But thanks for making me defend my thought!