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You are making the appeal to common practice fallacy. Even if human death (or sacrifice) is a common occurrence, it does not make it acceptable.

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Not only is it acceptable, it is necessary. How do you think our ancestors determined what was safe to eat? As the saying goes, sometimes you need to break some eggs. Now don't get me wrong, I'm neither condoning, nor encouraging, wanton negligence concerning human safety, obviously all possible efforts should be made to ensure it, but sometimes, such as in cases like this, the rewards far outweigh the risks.

> How do you think our ancestors

Right, but that doesn't mean we should follow that just because the ancestors did that?

On the opposite, I'd hope for astronaut-level safety precautions be spreading for the rest of society, so everybody could benefit.

Yes. And thousands have died in death camps to bootstrap our modern cariology. We should be grateful to all people who died in the past providing us data and knowledge, and to honor them we should use it in the best way we can, so that no one else has to die.

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