If Scala makes developers more productive and code less buggy at all, it will only do so for some developers. Look at the investments required: APIs need rewrit

If Scala makes developers more productive and code less buggy at all, it will only do so for some developers. Look at the investments required: APIs need rewriting, apps need rewriting for the new APIs, people need to be trained within Google, people need to be trained for it outside of the workplace, and other people will still look at Scala code and stay behind confused. And you need to do that for what? Because Java is too verbose? I hate (real-world) Java as much as the next guy but I don't have any illusions on this because the argument just doesn't add up and the effort doesn't seem worth it by a big margin. It would be much more feasible if Google would release an improved Android APIv2 with stronger immutability, first-class support for Java 8 and its features (lambdas, Optionals) and no 64k DEX limit. That would be a huge improvement for both Java and Scala Android devleopers, and it would also be feasible.