Some comments on that: - Has other comments have said: TypeScript is getting (already in master branch) union types. - Support for JSX isn't really a huge dea

Some comments on that: - Has other comments have said: TypeScript is getting (already in master branch) union types. - Support for JSX isn't really a huge deal. - Windows support will probably come - it's an open source library. I hope it's not the OCAML tooling. You make some great points about generics and using their own type system instead of TS, especially since TS has investments from both Microsoft and Google (with AtScript which supersets it). They state they use a model like Hack - and the repo also looks this way but I'm also curious, it looks like a very peculiar choice.