[overkalix]

Isn't that the basis/point of the actor model? Actors can message each other and processing the message can trigger state mutation of the recipient, but they can't directly mutate each other.

[lpil]

All data is immutable on the BEAM with a few exceptions, so no mutation within actors.

[dnautics]

No, that's not true. Actors in elixir/erlang mutate their state through tail call recursion through the loop function.

[lpil]

I said data is immutable on the BEAM, actors can update their state.