Technology

They are unrelated things. It has nothing to do with "what we feel"

I didn't say it did. I just said it's more useful for that. Whether it was on purpose or not, 100 and 0 are when it's dangerous. Before those it can still be, but beyond them you really need to be careful.

Celsius is also arbitrary. There's no particular reason water, at sea level, is used for the scale. It was just chosen. If you're measuring water, it's great. Otherwise, there's nothing that makes it "better" than F. It's not easier to convert to scale to higher or lower numbers or anything, which is what the metric system usually has an advantage with. They're both just scales.

I've been playing Stationeers a lot lately. (It's a game about managing a station on another planet, and simulates liquids and gasses really well, following the ideal gas law, and phase changes, and all that good stuff. I highly recommend it, and the devs are great.) In that you use Celsius and Kelvin, with you often needing kK or even larger. It wouldn't make sense to use F, because it's hard to switch between F and K, but C and K are the same, with K just being 274.15 higher. I have no issue with C, but this type of use is the one place it's better, and no one I know would ever have to do this.