Proxy is so so slept on. There's so many realms of programming we could imagine & do via proxies, it's such a portal into the language doing and becoming so much more!

There's some usage in some core frameworks like Vue and Svelte to enable reactivity. Good, nice. Maybe sedately working behind the scene is enough, but I feel like the story of this should be more forward, that we can also be doing things like persistence and AOP with Proxies.