Actors are a bit of a off-the-wall paradigm (https://patterns.ponylang.org/async/actorpromise.html), and I'm (as an old network protocol guy) not sure I'm happy with the attempts to make message passing look like sequential programming (like async/await).

I kinda see where Graydon is coming from. I have this broken half-assed Pony parser combinator thing staring at me right now.