Well, I meant more like the dangers of nature.

Having your whole city get destroyed is an unnatural thing that comes with advanced civilization and armies. I’m totally fine with eliminating that kind of “danger” from the world.

But the danger of riding a motorcycle, or lighting firecrackers, climbing a tree, fighting a beaver, whatever, those are dangers on the level that we evolved to deal with.

Just like in the analogy with sterility, I’m fine with making environments free of bio weapons and meat industry goop full of mega bacteria and the kinds of biological threats that civilization itself creates. But getting rid of the base load of strange micro critters, that yes do pose some danger of sickness and even death, turns out to be taking it too far because it makes people more likely to have allergies and autoimmune problems.

Explosives are actually predictable. Way more predictable than people or animals, for instance. A person can protect themselves when handling explosives by being careful.

But these are just my theories about what the mechanism might be. At the higher level, by analogy it’s just there’s a system we have, that has evolved to protect us, but it’s evolved to learn from encounters with the thing it’s designed to protect us from. If you give ir no encounters, it goes haywire.

I don’t know what the mechanism might be exactly, but I worry our ability to navigate danger might itself be a system that can go haywire.