I like the idea of Babel, but would prefer it as a sort of compile-for-production step. The performance and debugging complexity don&#x27;t seem worth it as part of the development process. Seems like it&#x27;d now be possible w&#x2F; Node v6 and a modern browser to develop &quot;live&quot; in (93% of) ES6 and then just Babel-compile to ES5 for backwards compat at the end?<p>Which unfortunately loses the ES7 features.