Younger dryars boundary. Or ybd impact theory. Randall Carlson got a lot of stuff on this. Probably 100 hours of solid podcasting. Ben on Uncharted X on YouTube got some pretty good stuff, but the OG is Carlson.
Tldr:
Earth almost died about 12600 years ago. We barely made it. Huge amount of evidence for this. But main stream science don't want to talk about it. It would end the careers of hundreds of scientists in many different field.
