this is great, but what sticks out to me is how quickly this seems to have been rolled out. Unless I'm misreading something, this went from first public draft [1] to full support [2] in less than two years?

Maybe I just haven't been paying attention to the rate new CSS features, but from my perspective this totally just dropped out of the sky. Here's hoping we can continue this pace.

[1] https://www.w3.org/TR/2020/WD-css-sizing-4-20200526 [2] https://caniuse.com/?search=aspect-ratio