Kind of, but in practice not really. Sure, something like a photo editor would never be possible in Web 1.0.
But 99% of web applications are forms and displaying stuff. All JS accomplished is making it look prettier and enhanced tracking.
I mean, Facebook, my bank, Amazon… these can all be created with no client side code. It would be a lot of refreshes, but it can be done.
A declarative approach would go a long way. Like, I'm not evaluating restaurants on the basis of their website quality, so why not have a restaurant browser and they can all just expose data according to some common schema. Same this with banks. Same thing with most things.
If you want a wildly interactive art experience, just load the appropriate browser for that.