Nice analogy. Here's somethine new. Rust is not just a sports car, but an eco-friendly electric one at that.
One topic OP hasn't touched upon is the disadvantage of "pushing client side to the server". JS is terrible at handling concurrent processes. The browsers have been able to make do because they typically care about just one user.
In the server though, it's terribly important to handle thousands of users concurrently. JS engines suck at it.
To put it in plain words, if you are into SPAs and want server side rendering, among all the other issues the one sure wall you'd be hitting is scaling issues.
JS will never be able to construct and send HTML over as efficiently as Rust could. This is going to be the reason why Rust(or a similar tech) will eventually win the web.
I wish speed mattered more, but JavaScript on Nodejs is performant enough for 95% of websites out there. Most websites are in the long tail, and never need to handle more than about 10 requests per second. For most websites, team velocity matters more than the AWS bill.
A clean static rendering system with caching, built on top of react / svelte / whatever performs well enough for almost everyone. And every year cpu costs drop, V8 gets faster and JS libraries get a little bit more mature.
I love rust, but I don’t see it displacing nodejs any time soon. Maybe when websites can be 100% wasm and the rust web framework ecosystem matures some more. Fingers crossed, but I’m not holding my breath.
One topic OP hasn't touched upon is the disadvantage of "pushing client side to the server". JS is terrible at handling concurrent processes. The browsers have been able to make do because they typically care about just one user.
In the server though, it's terribly important to handle thousands of users concurrently. JS engines suck at it.
To put it in plain words, if you are into SPAs and want server side rendering, among all the other issues the one sure wall you'd be hitting is scaling issues.
JS will never be able to construct and send HTML over as efficiently as Rust could. This is going to be the reason why Rust(or a similar tech) will eventually win the web.