[autoconfig]

You won't die even in those temperatures if you take the time to build up tolerance. That's key. Wim Hof has trained his body to survive longer than one hour with his entire body submerged in ice. Similar feats have been replicated by people using his method of cold therapy to build resistance. https://www.smithsonianmag.com/science-nature/science-explai...

[kyuudou]

I was waiting for someone to bring up Wim Hof. I think he's amazing and pioneering but I think there may also be a genetic component to his work since NW European DNA already gives him a headstart IMO plus probably has neanderthal DNA which was probably well-attenuated with extreme cold.

[autoconfig]

I wouldn't be surprised at all if there is a genetic component but that's why I mentioned that these attributes have been replicated in his students. But then again the fact that your body can acclimatize to cold or heat is not exactly groundbreaking news. We've known that for a long time.