[weberc2]

I've been using Go since 2012 (I believe). It's a great language, but it doesn't "solve concurrency". It makes concurrency quite a lot easier than in most other languages, and much easier than almost all mainstream languages circa 2012, but there's still lots of room to improve.

[kod]

I don't know if you consider Scala mainstream, but pretty sure both Finagle and Akka were available by 2012

[andreygrehov]

The ease of development in Go vs. Scala is day and night.

[kod]

Agree, it's a lot easier to write correct code in Scala.

[weberc2]

Scala was not on my radar in 2012; take that for whatever it's worth to you.