

If scales shouldn’t be arbitrary then a temperature measurement system that picked the state change of fresh water at atmosphereic pressure where you find a bunch of salt water which has a different state change temperature, might be just slightly arbitrary. Kelvin trys to fix it by moving the zero to eliminate negatives, but doesn’t change the scale making all the other temperatures arbitrary.
Metric is great, as long as humans are living on Earth. Any other planet or a major change to the atmosphere or Sea level and everyone is going to be why did they pick such random points. Luckily nothing is happening to change the atmosphere or Sea level on Earth so nothing to worry about.









Warm lights in bedroom lamps daylight in ceiling lights. Though it always looks like my bedroom is on fire when I look down a dark hallway towards it.