How far did you get with the "Neuroevolution Through Erlang" book? I happen to own it (there must be like 10 of us!) but haven't gotten around to it yet...
I am more than a third of the way through. I got distracted, and need to pick it up again. I like the writing style, and that if focuses on TWEANNs and practical examples rather than broad ML. I like the BEAM/OTP but Erlang syntax rubs me the wrong way. I've tried Elixir and LFE, and now I might try Luerl. Not enough time in the day...
For note, luerl is more of a library for erlang/elixir/BEAM and not a full language, as it is basically just lua's interpreter rewritten in erlang with some modifications to make it fit the system a bit better than normal Lua (there is normal Lua available via a Port though).
