Maybe this is the perspective of someone who has spent a lot of time in the northern US, but it's cold but really not that cold. I might even run outside briefl

Maybe this is the perspective of someone who has spent a lot of time in the northern US, but it's cold but really not that cold. I might even run outside briefly in bare feet in the snow. But, yes, get to 0 degrees F and you're in bitter cold territory although, of course it gets colder in the northern Midwest/mountains/etc. And my contractor has been in shorts and a T in 40s-ish weather this week. The point is that F degrees seems a pretty human scale that doesn't usually need a lot of decimals or minus signs for routine purposes. That it doesn't correspond to a couple of water transitions at standard pressure/temperature is sort of irrelevant. Of course, I and many other people are perfectly happy with using Celsius/Kelvin degrees for various purposes.