It’s probably useful to know that scales that may appear linear at first sight may actually not be, and then you have to be careful operating on it. For exampl

It’s probably useful to know that scales that may appear linear at first sight may actually not be, and then you have to be careful operating on it. For example, ever notice how sweet lemonade may become sour when you dilute it with water 1:4? That really doesn’t make sense, since water isn’t sour. But perhaps sweetness and sourness have different gamma curves, changing the relative perception when operating on some value.