Makes you wonder how life operated near the beginning, before "how to behave sustainably" evolved. Before individual death, before sex, before speciation, befor

Makes you wonder how life operated near the beginning, before "how to behave sustainably" evolved. Before individual death, before sex, before speciation, before children, maybe even before genes. The world must have seen some wild, explosive action in its day. Immortal organisms still exist (two-headed planaria!), but on the whole the ecosystem seems pretty well calibrated by now.