Why does it have to be based on weather? There's plenty of other reasons to measure temperature. Some with handy reference points that lots of people are familiar with.
Well if you're going to bring precautions into it, we may as well say the upper and lower bounds should include things like 'feels hot even with air conditioning on' or 'survivable with a heated jacket and boots'.
Imperial is defined by the metric system anyway.
Rather than say people are using imperial, I just say they are using metric with some extra complications thrown in.
I don't think I can tell the difference if something is only one degree apart in Celcius, let alone Fahrenheit.
Comparing an 18C day to a 19C day, for example, I challenge anyone to notice a difference. A 64F to 65F day? Good luck.
I agree with the Celsius scale making sense around zero. Water freezing is probably one of the most relatable, quantifiable examples of a temperature point for the most humans. However, lots of people don't live somewhere that it snows, or even own a freezer.
So what's the most common touch point for people? I'd go with water boiling. I can't really think of what sort of person who did not have exposure to that at some point. That should be the zero point, the common denominator.
This isn't so much a vision for the future, as it's an option right now.
I can't wait until work puts in car chargers- Top off the battery for free during the day, come home and sell that juice back to the grid, baby!
@Pok
@lemmy.world