You never used Erlang/OTP, did you? ;) Message passing is just part of the language and it's definitely not the most interesting one. It becomes really powerfu

You never used Erlang/OTP, did you? ;) Message passing is just part of the language and it's definitely not the most interesting one. It becomes really powerful when you combine all the interesting things together (pattern matching, message passing, lightweight processes, supervisors, gen_*, ...).