Framework · 2021–now · Platform Wars
SolidJS
Fine-grained reactivity without a virtual DOM. The framework perf nerds cite when explaining why React rerenders hurt.
Why SolidJS stuck
SolidJS stuck in admiration because signals and compile-time optimization deliver measurable wins on benchmarks. Adoption stalled because React owns hiring, libraries, and employer risk tolerance. Being right about performance does not beat being default.

Compare with
Related
Framework · 2013–now
React
Components and unidirectional data. Won the front-end by being good enough and having a gravitational ecosystem.
Framework · 2016–now
Svelte / SvelteKit
Compile away the framework. Less runtime theater, more shipped HTML — including this site.
Framework · 2014–now
Vue
Progressive framework with a friendlier learning curve. Steady share without the cult volume.