I am not anything close to an ecologist or a biologist so this question may be really dumb. But I know that water is essential. It is used in many important bodily processes and we would die without it very quickly.
So my question is, how did so many generations of humans survive without the water purification standards that we have today?
Is there a reasonable amount of dirt, toxins, bacteria, etc… that can be in water and it won’t make us sick?
I also know people have boiled water for a very long time but didn’t we only discover bacteria and viruses in the lasts several hundred years? Did people know that boiling water would purify it?
Also am I wrong for thinking that most water in nature is dangerous to drink?
Hopefully these questions make sense.
In: 1437
because its a numbers game. humans that you see are decendents of the ones that did not die mostly, this is relevant through out time with almost anything u can pin point. basically, lets say you had 10 ppl, 8 of them died with various causes, 2 of them survived. those who lived, both learned to not do what the 8 did, and they thought what they did to their children and repeated. the habits were distilled and passed to offsprings.
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