The larger problem is that humans are kinda shit at eyeballing the relative size of areas. You can generally tell if one is larger than the other, most people

The larger problem is that humans are kinda shit at eyeballing the relative size of areas. You can generally tell if one is larger than the other, most people just can't estimate how much larger one area is to another with any sort of accuracy (which is why area comparison graphs are often used when it's desirable to minimize the perceived differences).