We should have had a standard like WebAssembly from the beginning. The lack of it is the reason for the outrageous explosion of features in web browsers. At first html made sense: it was ideal for quick transfer and rendering of documents. But today that's not enough. So we keep tacking on layers atop already fat abstractions. And all this fat is trying to support a moving target. At first it was about rendering text, but then it was animations, and then videos, and 2D games, and advertisements, and now 3D games and full fledged apps. Notice that operating systems don't play this game trying to build an abstraction for every possible use of a computer because it's unwinnable. And now, some 25 years since its inception, the web is learning the same lesson.

Web browsers have been like operating systems all along, because they execute programs, albeit with different performance and safety characteristics. That the two are converging upon the same solution to the problem of hosting apps should be reassuring, not concerning.