The actor model also gives you a good amount of isolation between your contexts (no public API, just async message passing). It gives you the advantage of runni

The actor model also gives you a good amount of isolation between your contexts (no public API, just async message passing). It gives you the advantage of running everything on a single node as long as it's feasible without having to go through some `data -> JSON -> HTTP -> JSON -> data` route and still when you need to scale out, it is easily and transparently done.