Your reasoning is valid, but it only explains virtual memory, not processes. Processes are primarily a means of isolation. If anything they're liable to increas

Your reasoning is valid, but it only explains virtual memory, not processes. Processes are primarily a means of isolation. If anything they're liable to increase memory usage, because the lookup tables need to be saved somewhere. See also my comment at https://news.ycombinator.com/item?id=19121443#19129363 https://news.ycombinator.com/item?id=19121443#19129363