Yeah I thought it was accepted it likely emerged around vents and spread upwards slowly. Iirc the earth was hit with a ton more radiation back then as the ozon

Yeah I thought it was accepted it likely emerged around vents and spread upwards slowly. Iirc the earth was hit with a ton more radiation back then as the ozone layer was created when creatures moved up and evolved to use the suns light as an energy source (photosynthesis.) I’m also a layman so this could be outdated or potentially wrong