xkcd comic: Fields arranged by purity HD Wallpaper

A minimalist xkcd comic depicts various scientific fields arranged on a line from left to right, labeled 'Sociologists', 'Psychologists', 'Biologists', 'Chemists', 'Physicists', and 'Mathematicians'. Text above each group defines their field in relation to another, with an arrow indicating 'More Pure' towards the right. A mathematician at the far right comments on not seeing the others.