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Farhenhiet and Celsius are equally made up. All measurement systems that we use on human scales are made up. And in this case, farhenhiet is actually just better. More granular and more useful on a day to day basis. Yeah, it doesn't have the freezing point of an arbitrary substance as the 0, nor the boiling point of an arbitrary substance at 100, but it has temperature you should immediately be concerned about coming into contact with outside of -20 and 120, temperatures you should be concerned about contacting outside of 10 and 90, and fairly normal weather between those two.
I don't care too much about 100 being the boiling point of water, but 0 being the freezing point is really convenient. Most weather has something to do with water, negative temperatures mean snow and ice.
Fahrenheit: 0=cold, 50=mild, 100=hot
Celsius: 0=moderately cold, 50=dangerously hot, 100=deadIt makes no difference to me if the boiling point of water is 100°C or 212°F, if I see it boiling the pasta goes in.
In a scientific context Celsius and metric in general are superior without a doubt. But to live my life Fahrenheit works just fine.
The only important property of a temperature scale is that it exists and is agreed upon for science. Farhenhiet and Celsius do that job equally as well.