If sufficient steel and lead artefacts from modern civilization are still around, a future civilization's scientists might notice a discontinuity in the background level of radiation amongst the artefacts, hinting at some of our antics...
Not linked to directly to sources, but fascinating:
(no subject)
Date: 2023-06-04 06:11 pm (UTC)Not linked to directly to sources, but fascinating:
Low Background Steel. - Twitter thread (https://twitter.com/CyberPunkCortes/status/1662105701982896128?s=20)