I think fermentation and radioactive beaches are my favorites. From a thematic perspective, I don't have the brains to actually have an opinion on whats most likely or correct.
Fermentation is funny & resonates with how fermentation is the most important chemical process to civilization
Radioactive beaches are nice if we ever manage to destroy all life in thermonuclear war, dust to dust, radioactive beaches to radioactive beaches.
edit: Creation Myths are acceptable
panspermia but with horizontal gene transfer orgiastic characteristics
like the origins of life came from some asteroids and comets or whatever, but this wasn't a one-time thing, it's keeps happening periodically, and the horizontal gene transfer takes in whatever happens to fit/work into existing life
life on earth is just a hodgepodge craft project of gravity and energy physics
:panting: