[skybrian]

For RPC, substitute "sending a message to a remote machine" if that's what you prefer. Network requests and responses are pretty universal and can be represented in different ways at the language level, but they are pretty different from local requests.

I'm wondering if this stuff could be better explained without going back to what Alan Kay supposedly wanted? If a software architecture idea is good then it should live on its own and others should have elaborations on it.