Being realistic, it might take more than a decade to see a standard EcmaScript version with type annotations available in all major browsers. Until then, transp

Being realistic, it might take more than a decade to see a standard EcmaScript version with type annotations available in all major browsers. Until then, transpiling is the only choice. So I don't think diverging from the (possible) standard is too bad. We don't know how the state of web development will be at that time, and probably the standar won't ever catch up with TypeScript and transpiling will be required for quite a long time until something like WebAssembly really takes off.