[weatherlight]

> Why isn't Phoenix/Elixir more mainstream?

Very simply. It hasn't been adopted by a giant tech corporation as one of its main languages. All the startups that do use it aren't the size of Google or Microsoft.

Thats not to say it's not a wonderful language.

The frameworks and libs are top notch.

Elixir developers tend to be polyglots and very good engineers.

I know of plenty of small companies who did start off with elixir because they could do so much with a single language across multiple domains, with fewer engineers and lower server costs.

Maybe one of them will be the "next big thing."