They’re both arbitrary, the only scale that has any claim on not being arbitrary is Kelvin, but I don’t care to get a weather forecast that it’s going to be 294° tomorrow. it makes sense to put the values I use in my everyday life inside of a reasonable range, and the thing I use temperature for the most is weather, so I like using a scale that puts weather in that range. If I was a chemist or had some job where the boiling point of water was more relevant to me then I might care that it sits at a nice number like 100, but the way my life is now it just doesn’t seem relevant
They’re both arbitrary, the only scale that has any claim on not being arbitrary is Kelvin, but I don’t care to get a weather forecast that it’s going to be 294° tomorrow. it makes sense to put the values I use in my everyday life inside of a reasonable range, and the thing I use temperature for the most is weather, so I like using a scale that puts weather in that range. If I was a chemist or had some job where the boiling point of water was more relevant to me then I might care that it sits at a nice number like 100, but the way my life is now it just doesn’t seem relevant