The web could certainly use an alternative to the HTML / CSS / JS stack. The paradigm is just so awkward nowadays for how it's used that we invent new web frame

The web could certainly use an alternative to the HTML / CSS / JS stack. The paradigm is just so awkward nowadays for how it's used that we invent new web frameworks almost daily to make working on the web less awkward. So there is certainly a need for an alternative, in my opinion, that can offer better performance, device access and most importantly a less awkward development cycle. Plus local storage sucks. Having said that, like others mentioned security is a huge, huge, huge hurdle to getting this right. However I don't think that automatically means it wouldn't work. On the contrary many new technologies start out as being very insecure. I think the real hurdle is adoption. In order to use your technology stack a user would have to install a new type of browser (messaging around this may prove difficult) and a developer would have to dedicate to writing something in your stack. Granted if you're looking at React Native then you're likely thinking JavaScript here so that makes it easier but it's yet another platform for a developer to learn. Most companies need to be present on the web, android, ios and sometimes beyond that onto windows, mac os x and maybe even into IoT devices. Adding your platform to that list is going to be tough.