The plateau of intelligence. And now you could ask me to define intelligence and I would stick with the common definition:

Intelligence is the mental capacity to learn, understand, reason, and solve new problems.

Hmm. That's a very odd definition. I guess we shall see.

> If a less intelligent species, like humans, is able to create a more intelligent species

I think we have yet to even show that this might be true, so let's cross that bridge first.