Every time I engage with Elixir/Erlang content it just makes me happy. I don’t feel like I get that from most tech.

More specific to this video, I’ve always thought that the preemptive multitasking model made BEAM particularly well suited to UI work. In Jupyter, you often wait for cells to complete. If it’s a large task this can be a major blocker. Here that seems to be less of a concern. Very remarkable.