Reasonability. In an age where billion dollar companies are gutted by 16yo hackers on a monthly basis, it's worth the effort to build strong, secure systems that can be formally reasoned about.
I am so freaking excited about Scala Native. I haven't been so genuinely excited and enthusiastic about something for such a long time, but Scala Native is so awesome.
I feel like turning Scala into a cross-platform language is the best idea possible. I'd love to see Scala someday be able to just dump out WebAssembly, or JVM bytecode, or LLVM IR, or whatever the next "hip" format is, while keeping the language the same.
I also find it shocking how hard people are pushing Typescript when Scala.js exists. Why would you ever subject yourself to TS?!?!