Speaking of knowledge, there is something a very large part of the population just won't get. If some sort of augmentation comes out, like having a neural net or chip implanted in your brain that allows your brain to process information better, or faster, the vast majority will only get the tech level they can afford. Get it?
There is another misnomer. Average intelligence is merely something they came up with to help people feel about themselves. My observation has been either you have it, or you don't. And no machine will be able to change that.