Memories of an oldie
Having worked on CPU and MMU design 40 years ago, I continue to be amazed that we use basically the same CPU architecture (at least 50 years new) and, while running it so much faster and cramming more and more functions in, actually manage to make it work properly. We simulated the design 40 years ago and made it work first time, that skill was then lost for a while, and then it came back and delivers.