[e12e]

I believe with the combination of native functions ("NIFs") in rust and some work on the nif interface (to avoid making it so easy to take down the whole beam VM on errors) - you might get more of best of both worlds today - than you used to. As you say erlang itself is rather slow wrt compute.

[mercer]

Thankfully it's not an issue for me. Elixir/Erlang is pretty much perfect for most of my use-cases :). But I foresee a few projects where NIFs or perhaps using Elixir to 'orchestrate' NumPy stuff might be useful. Most of my work would remain on the Elixir side though.