The importance of JavaScript as a Platform is not abt billions of browsers running JS, but abt how each one of them is also a JS IDE. If we could click the fork button, and start editing, testing and deploying right away, all within the browser, we'd probably get programmers to contribute to open source web apps in a way never seen before.

A sea change in how web software gets built and consumed, in the same way Britannica yielded (had to) to Wikipedia.