Also, was the Erlang VM written in Erlang? Probably not. So I'm skeptical about the universality claims of the language. The article states the opposite opinio

Also, was the Erlang VM written in Erlang? Probably not. So I'm skeptical about the universality claims of the language. The article states the opposite opinion: that you should use the right tool for the right job. Change the requirements... and the spectrum-of-ridiculousness for any option changes drastically. The language matters, deeply.