> various lisps have been doing it for decades
There's an insanely long road from having a prototype of a language to having a production ready thing. There isn't a lisp where I could achieve the same experience.
It isnt a mature enough language to be trusted so soon, no body has a sufficient enough industry grade experience with it. Especially with large code bases.
I mean, Google adopted it as a first class citizen language on android which counts for something.
> no body has a sufficient enough industry grade experience with it. Especially with large code bases.
There aren't really any "new" features in Kotlin, as in features you haven't seen before. If you've been programming Java and know some Haskell/Ocaml or idk what else, you are good to go.
Something but not much. It works on JVM, talk to all Java libs and tooling is taken care by Intellij. It is low or little effort from Google to support. Unlike other language fans who clamor for Android support from Google, here hard work is done by someone else. So Google support looks most like a co-branding deal.