That sounds perfectly reasonable to me, but John Hennessy literally wrote the book on computer architecture. Towards the end of the deck he has a slide that we

That sounds perfectly reasonable to me, but John Hennessy literally wrote the book on computer architecture. Towards the end of the deck he has a slide that we shouldn't expect large gains from improved architecture (on general purpose chips) in the future. I'm inclined to believe him, although I would be interested in hearing a deeper proof/disproof of the architecture you proposed.