You understand, just small children are difficult to explain concepts such as infinity, the theory of boundaries, and so on. Therefore, in elementary school they say that it is not possible to divide by 0. And then these little children grow up into big pigeons who no longer listen to what they are being taught there. Therefore, they remain with the education of primary school and are simply convinced that it is impossible to divide by zero, 0/0 - beyond the boundary of good and evil; that a kilogram of bricks is heavier than a kilogram of water, because the brick density is greater, and therefore the brick occupies a smaller volume, and the mass here has nothing to do with. They consider themselves very Russian, although they do not know how to speak properly in their native language, ignoring the letter; and very Patriots, clinging to the Georgian tape anywhere, although they do not know exactly what they mean, confused in the concepts of the Civil and Patriotic War, believe that in the first world war we (yes, they very much like to talk about the US) fought against the French, and the Great Patriotic and World War II are generally 4 different events. Hitler was defeated in the Battle of Borodin at Kulikov Field in 41. And at the same time, they very much like to laugh at “stupid Americans,” although most of the myths about their stupidity have been invented by themselves.