Jay W. Forrester Dies at 98; a Pioneer in Computer Models
nytimes.com
nytimes.com
Professor Forrester abandoned digital computing in 1956, in part because he believed that the major innovations in the field had been made. “I might not have envisioned how much smaller and faster they’d be, but the fundamental logic hasn’t changed.”
Take that, Silicon Valley!
Although "logic" might not make clear what we're talking about, it's things like parallel execution, modularity, 3D core memory, the first seriously useful form of it which got us going until DRAM, etc.
Note HN has this currently larger discussion of him: https://news.ycombinator.com/item?id=12983740