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by rdtsc 4403 days ago
> If two actors A and B send a message to an actor C and expect a response from it, they are sharing memory: what's in C's state.

Ok in that respect there is just one big pile of shared memory in the whole world, isn't it (maybe except for military air-gaped system). It is the equivalent of saying if A makes an HTTP post to server C the it shares memory. Well ok, I am not sure what you mean by "shared memory", usually it means living in the same heap. So can access it via a pointer or reference.