I always have to comment when I read s.th. like this. And I read it a lot when it comes to temperature scales. Celsius is completely fine scale for humans, most of the world uses it without any complaints. A human cannot tell 22° and 23° C apart. Even americans using Fahrenheit say something like “temperature is in the fifties”. Fahrenheit (like lots of other scales in the US) has no real place in this world anymore except in this special american view…