What survival myth is completely wrong and can get you killed?

https://lemdro.id/post/37509347

Boiling water for safety.

No, you are only concentrating the heavy metals, neurotoxins and the salt in the water.

You need way more context about what you are trying to eliminate from your water to do it safely.

You’re not even concentrating it that much when you boil it. Keep the lid on the pot next time so you lose less to steam and evaporation.

Also, “concentrating it” makes it sound like you’re making it worse, but the total amount (mass/moles) stays the same.

Plus if you build a simple condensation setup, boil the whole thing and drink the condensed steam, you’re also getting rid of 99%* of those heavy, inorganic impurities

*out-of-my-ass number