"Often people who dismiss philosophy end up going over the same ground philosophers trode hundreds or thousands of years ago."

See the paper on the Heideggerian critique of AI I posted earlier.

The notion that we have Platonic a priori knowledge looks pretty silly without a great deal of massaging as we learn more about the mechanism of brain development.

Oh? I would think that one of the lessons of neuroscience is that we are in fact hardwired for a great many things.

The language in impenatrable because they have nothing to say.

How do you know? That is, what evidence other than your lack of understanding do you have for this?