Probably because you didn't grow up with Celcius. Celcius makes sense because it's based on water, 0 is freezing and 100 is boiling. What's Fahrenheit based on? Anything we use in our daily lives?
I grew up with and actively use Celsius, but this instinctive disdain for other measurement systems leaves me… a little cold. It’s not even like Fahrenheit has weird non-decimal ratios. Save your mocking for the avoirdupois furlongs!
30C+ is too hot to go outside.
20-30C is a hot summer.
12-20C is the rest of the year.
0-12C is jumper weather or freezing to death in your home, depending on whether you can afford your energy bill.
<0C is fucking Baltic.
Celsius has many strengths, and is obviously better suited for scientific purposes. Fahrenheit is handy for outdoor temperatures. That doesn’t mean Celsius is useless for those.
These turf wars are weird. A good engineer doesn’t spur different tools, for different tools have different strengths. I can immediately make sense of both systems, and I consider that to my advantage.
Celsius and Fahrenheit are equally arbitrary / bad for scientific purposes, Kelvin is the only scale that makes sense since it's zeroed at absolute zero. Celsius is only marginally better than Fahrenheit in that you mostly deal with temperature increments rather than absolute values and celsius increments are the same as kelvin increments
What's your standard of too hot? Uncomfortably hot? From the climate I'm used to then 80F qualifies. I'm not sure 80F is any less arbitrary a threshold than 25C. Don't confuse "my personal range of comfortable temperatures goes from 0-100F" with "0-100F maps neatly to every person's preferred temperature range and therefore is an advantage to fahrenheit"
(and that's before we get into the effects of humidity, or if outdoors, windspeed, on perception of temperature)
Similarly, 0F is -18C. -18C in my country would be a minor disaster, given our historical low is -5C. Our usual yearly low is about 0C, and 0C is more logical here than 32F, with negative temperatures actually being exceptional
As for personal preference, I think the first two thirds of that range are unbearable. I grew up in an subtropical area that regularly rises over 100 F in the summer. I don’t go around pretending that’s not hot though. It’s very hot! Unless you’re proposing different temperature scales for every climate, I’m unsure how your point about your local area is relevant. Surely people travel outside of your (and my) warm climate.
In Fahrenheit 0 and 100 are defined in random ways, but it ends up covering most of the range of temperature human experience in the environment.
Celsius's definition does not include putting a thermometer inside an adult horse, but the common range of everyday temperatures is -18 to 50.
There are points of view in which imperial units can claim to be easier to use.
In the end the SI are technically better for sure; US imperial units are defined in terms of SI units, according to Wikipedia the pound is "legally defined as exactly 0.45359237 kilograms", nor it is a coincidence that -40F° = -40C°
I adore Randall.
Actually I had found it apparently but convinced myself that it was not the correct one, I deeply misremembered the setting.