I'd love to see a Babel sort of thing that backs away from transpiling as much as possible and functions more as execution time polyfill. Maybe an http2 server

I'd love to see a Babel sort of thing that backs away from transpiling as much as possible and functions more as execution time polyfill. Maybe an http2 server that uses browser detection to push polyfills so that your app can just assume everything works without transpiling up front? I'm super hopeful http2 with es2015 modules will make web dev tooling drastically more streamlined in the nearish future.