I don't think anyone knows, hence all the experimentation going on in the space. There are already pretty good ways to manage state to choose from, from mobx/r

I don't think anyone knows, hence all the experimentation going on in the space. There are already pretty good ways to manage state to choose from, from mobx/reagent-style of mutating a store and things just re-render automatically, to observables/swiftui's compose reactivity, to other flavors of reactivity like Elm. They all are better to work with than what I was doing not long ago with uikit/backbonejs/whatever. It's never obvious when you're taking on the right trade-off between boilerplate and reactive magic, though. But times are pretty good these days for building a rich UI.