Earlier quoted context omitted.
> The list seems rather arbitrary As opposed to what list? An exhaustive one? The quality he asks of the languages in the list is "interesting", which is by definition rather arbitrary itself.
Elixir is Ruby like wrapper to a prolog based syntax to do actor based programming. It's more of a mess trying to move Erlang's syntax forward than interesting, but ok. Ponylang is listed as "--" instead of "concurrency as a primitive type". I'm not sure I can trust anything on the list, so it doesn't motivate me to investigate further. YMMV
I do care for a set of links to languages I've not seen yet, where I can click and check their websites -- and this provides it.