Heh, sorry, I (the author) wasn't the one who created the post. But the idea is reactivity in JS shouldn't require new syntax.

Gea works best with the compiler, I documented a non-compiled (only compiles JSX) browser usage here: https://geajs.com/docs/browser-usage.html but this obviously requires manual store observers and manual DOM updates, which means it's not _really_ benefiting from Gea.