Yeah, 0 isn’t the limit of what humans can endure, but it is a decent limit between ‘you need a reasonable coat and it’s not going to be comfortable being outside for long’ and ‘ok, we need to be taking some precautions and take things seriously until it comes back within reasonable temps’… Really similar to over 100…90s is pretty uncomfortable but most healthy adults with reasonable accommodations can deal with cold down to 0 and heat up to 100. Above and below those temps and you have to start prioritizing temperature into your planning for safety rather than comfort.
Yeah, 0 isn’t the limit of what humans can endure, but it is a decent limit between ‘you need a reasonable coat and it’s not going to be comfortable being outside for long’ and ‘ok, we need to be taking some precautions and take things seriously until it comes back within reasonable temps’… Really similar to over 100…90s is pretty uncomfortable but most healthy adults with reasonable accommodations can deal with cold down to 0 and heat up to 100. Above and below those temps and you have to start prioritizing temperature into your planning for safety rather than comfort.