you'd think we'd have more "bail top" bottles around today if they were so durable.
I've got a gully that was used as a trash dump in the 1920s. We found some "rust colored areas" in the soil and some ~10mm shards of ceramics with recognizable glazing still. even the bricks were shattered and easy to mistake for rock.
I think the speed of natural recycling is vastly underestimated. There's a few rare occasions and circumstances where preservation can happen; the default state is entropy eating things as fast as they're built.
It varies a lot by location and conditions. I find lots of stuff in fields around me, of all ages. Loads of Victorian ceramics, but also 1920s glass, 1980s ring pulls, Roman tiles, Mesolithic flint.
