I wasn't very clear, but I meant to say that the number of lines that will naturally end up between 80 ~ 100 columns is greater (in practice) than the number of

I wasn't very clear, but I meant to say that the number of lines that will naturally end up between 80 ~ 100 columns is greater (in practice) than the number of lines that will go over 100 columns. I.e. I think that 100 is a better "sweet spot" than 80 or 120.