But 0K (notice there's no °) is the lowest temperature - it's just that it's also the hottest temperature, depending on which direction you're coming from. Tem

But 0K (notice there's no °) is the lowest temperature - it's just that it's also the hottest temperature, depending on which direction you're coming from. Temperature has a nice interpretation as average energy for classical systems, but in a sense thermodynamic β = 1/kT is the more 'natural' quantity that has a pole at T = 0, corresponding to infinite hotness or coldness respectively.