Comment by plainOldText

Based on the features presented in the talk, Pony looks like a great language:

  * Actor-model 
  * Concurrency-aware type system
  * Zero-copy message queues
  * Work-stealing topology-aware scheduling
  * Fully concurrent GC with no stop the world

Since there's no such thing as a perfect language for all problems, I wonder what's "the catch" with this language - besides the obvious "not enough libraries yet"?