Celsius is already screwed up because it's not zero-based.
replyCelcius is eminently practical (similar to power of two prefixes). Absolute zero is completely irrelevant for day to day human life.
replyFahrenheit is even more practical for daily life, as it was designed to be.
replyHow so? 0 = freezing water, 100 = boiling water is at least more useful than more or less arbitrary points of F.
replyCelsius is just as arbitrary as farenheit so I wouldn't be so sure.
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