Back in the 80’s I worked as an OS software architect. I used to do a mental exercise occasionally. I would imagine how I would design things if processors were

Back in the 80’s I worked as an OS software architect. I used to do a mental exercise occasionally. I would imagine how I would design things if processors were infinitely fast. Back then we were still following Moore’s law, even for single processor machines. Processor speed, memory size, disk speed, and network speed all put hurdles up for what we could do. I remember talking to a colleague about the possibility of a TeX system that would rerender a page as it was typed in one screen and viewed in another. Ok