zlacker

I'm not convinced that JavaScript is the difficult part. HTML/CSS rendering seems far more challenging.

>>IshKeb+(OP)
Servo seemed to have pretty much got rendering working. I'm no expert but I feel like the hundreds of JS apis contribute a lot to the complexity. Just looking at the list here looks like it would take decades for a single person to complete https://developer.mozilla.org/en-US/docs/Web/API

>>Gigach+02
https://github.com/servo/servo/issues/28777

>>Gigach+02
Decades of work for a single person shouldn't take longer than 3 months for one of these mythical "100x" developers.

>>IshKeb+(OP)
It's the interaction of JS with HTML and CSS, combined with the expectation that all browsers will implement everything in ways that are functionally identical. Current "web platform" specs are in the form of algorithms/pseudocode rather than descriptions of desired behavior.