Almost certainly there’s no meaningful insight to my random thought, but your comment reminded me of a conversation I had with Joe Armstrong about 10 years ago,

Almost certainly there’s no meaningful insight to my random thought, but your comment reminded me of a conversation I had with Joe Armstrong about 10 years ago, discussing control vs data plane for Riak. Originally Riak shipped its data around as part of Erlang’s standard messaging mechanism, the process mailboxes. Over time that was recognized as a bottleneck and data started being handled differently (honestly it’s been such a long time I don’t remember the details, or how far down that road we went). I have no conclusion to this ill-formed rumination, I’m afraid, just that your point about managing state independently reminded me of that conversation.