> Percentages are unitless, you're making a trivial observation that didn't need to be said. My original observation was that Celsius and Fahrenheit are arbitr

> Percentages are unitless, you're making a trivial observation that didn't need to be said. My original observation was that Celsius and Fahrenheit are arbitrarily shifted, and that matters. Then you countered that Kelvin is arbitrary too, to which I write that it is only arbitrarily scaled, and that is fine (of course, for the exact trivial reason that you point out). If your best argument is that I made a correct but trivial statement in addition to my main point, then I don't think there's much more to be had from this discussion. I bid you farewell.