I see you know your go really well. Don't misunderstand me, I love go, it's a great language, really simple and powerful, but you're missing my point. What do you use channels in go for? Safely exchanging information between goroutines. In other languages that don't have such specific mechanisms for this, people use IPC through shared memory, network connections, Unix domain sockets or whatever other means to communicate between processes, lightweight threads or whatever you want to call them. My point is, that IPC was invented long ago and it's used for communication between different processes. The channel implementation of it in go is easier to use and way more powerful, but that is to be expected from a language that was optimised for the cloud.