Yes, but as you've said, the idea isn't exclusive to Smalltalk/Erlang. Message passing is a very common pattern [1], but some languages decide to support them w

Yes, but as you've said, the idea isn't exclusive to Smalltalk/Erlang. Message passing is a very common pattern [1], but some languages decide to support them with built-in constructs. [1] https://en.wikipedia.org/wiki/Message_passing https://en.wikipedia.org/wiki/Message_passing