[thiht]

That makes no sense. Kelvin and Celsius are the same, just with a different 0.

I know exactly what a temperature of 0°C, 10°C, 20°C or 30°C will feel like, and I’m pretty sure I’m human.

[muli_d]

I think that the idea is "what it feels like in a scale of 0 to 100".

So, in Celsius, water are "very cold" (=freezing) at 0 degrees but "very hot" (=boiling) at 100 degrees. Same with Fahrenheit: 0 is extremely cold while 100 is very hot.

I get the logic but I am too used to Celsius at this point, just like you.