Well JavaScript isn't going to see any more leaps in performance, and people write slower JavaScript than they wrote yesterday, on average, so it must be remediated somehow.
And until a lot of people realize that most web technologies are fundamentally bad, things are not going to get better.
We are not going to be using this same web tech in 300 years, almost certainly, so at some point it's going to change. It won't be soon, because people love tradition, even when it causes them pain.
> people write slower JavaScript than they wrote yesterday, on average
This is only true because computers are faster than they were yesterday, on average. People don't optimize code to some arbitrary absolute level, they optimize code that's slow on their computer.
And until a lot of people realize that most web technologies are fundamentally bad, things are not going to get better.
We are not going to be using this same web tech in 300 years, almost certainly, so at some point it's going to change. It won't be soon, because people love tradition, even when it causes them pain.
So, for now, it's webassembly time.