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For questions on the limits of human survival or on ways to stay alive under extreme conditions. Generally, "evolve new abilities" is not an answer to these questions. These questions are about humans as we are today.

6 votes
5 answers
2k views

How many airborne bacteria can I put into the air while keeping it breathable?

I have a setting where I want the atmosphere to basically be filled, heavily and consistently, with a bunch of small, airborne bacteria-like cells/microscopic biomatter. For the sake of keeping the qu …
maisaur's user avatar
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