Generative Grammars

So basically, all human languages are generative -- which means, there is no limit to the complexity of the statements that can be constructed. For example:

I saw the boy with the telescope who was watching the girl with the binoculars who was watching ... "

And, basically, this made our brains get big, but it is not hard tech.

I have written an interpreter and a compiler with a corresponding pcode machine, both of which are still in production and generating $millions of income. Both of them, it is so cool, when someone gives you logic 10s of times more complex than any you ever imagined, 100s of parentheses, and it just keeps pushing it up onto the stack, and then, it just works!