What's a good metric for when to stop masking?

Or for that matter, a year ago.

Pandemics do eventually fade into obscurity as the diseases become endemic and (typically) less virulent and lethal, and people develop resistance. Look at the 1918 flu epidemic- it’s still here as H1N1, but it’s not causing pandemics anymore. And by mid-1920, the pandemic was over with.

That’s where I feel we’re at with COVID- it petered out after the Omicron surge pretty hard, and just isn’t showing up anymore.