5 years is a bit optimistic. I have no desire to use anything dumber than Claude - but I doubt I'll need something much smarter either - or with so much niche knowledge baked in. The harness will take care of much. Faster would be nicer though.
That still requires a pretty large chip, and those will be selling at an insane premium for at least a few more years before a real consumer product can try their hand at it.