I believe he means that each process requires ~5 seconds of CPU/system time per update, meaning that even a single 8-core machine wouldn't keep up. It's not rea

I believe he means that each process requires ~5 seconds of CPU/system time per update, meaning that even a single 8-core machine wouldn't keep up. It's not really related to how many threads or processes can be created, rather how many can actually be doing work in parallel.