He isn't suggesting that. He's suggesting it is the right place to start, in the same way that we normally start writing sync code with a single thread.
> “..and when you need to utilize multiple CPU cores, you just spawn multiple processes that listen on the same socket. This is a much better way of structuring servers..”
Yes it is. Spinning up another process is not multithreading, like, literally. It’s multiprocess. I never cease to be amazed with the complete lack of basic CS literacy from JS script kiddies.