"Alan Kay's idea of OOP-- encapsulate complexity behind a simple interface, and separate the two while preferring stability in the latter-- was utterly sound an

"Alan Kay's idea of OOP-- encapsulate complexity behind a simple interface, and separate the two while preferring stability in the latter-- was utterly sound and right. He wasn't saying, "go off and write opaque, complicated objects". He was talking about what to do when complexity becomes inevitable." I agree completely, I was only pointing out another problem with OOP (or, if you will, OOP done poorly) is that it leads to the trap I mention.