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by NotSammyHagar 2311 days ago
I don't know. Imagine a virus that is 100% lethal to humans. The flu and other virii are in a sense a kind of living organism focused grey goo because there's nothing that stops a new virus from evolving and killing all living members of a species, what's left rots. There probably exists something that could kill all of us and we'd be rotten meat after we are dead. A virus uses our metabolic energy to make new copies of it and doesn't kill us immediately so that we can spread it.