Actually, you are describing the "oxygen catastrophe," when prokaryotes poisoned themselves. "No snowflake feels responsible for the avalanche." https://en.m.

Actually, you are describing the "oxygen catastrophe," when prokaryotes poisoned themselves. "No snowflake feels responsible for the avalanche." https://en.m.wikipedia.org/wiki/Great_Oxidation_Event https://en.m.wikipedia.org/wiki/Great_Oxidation_Event