Crockford's thoughts on actors are really interesting. I tried to pull them apart but I didn't get very far and ended up not including them in the episode.
What he is envisioning is not exactly like Erlang but not exactly like Scheme. He said that Carl Hewitt had a lot of ideas and they were hard to unpack.
If you're interested though, I would reach out to him. He is very approachable and excited to talk to people with ideas for new ways of making things simple.