" ‪If only because there is so much to know in our human universe, the working assumption you can go on is: You may assume, about absolutely any fact (how many transuranic elements are there? why does cold water remove human blood stains faster than hot?) that nine hundred and ninety-nine people out of a thousand do NOT know it- which goes for the working assumption too. "

― Samuel R. Delany , Stars in My Pocket Like Grains of Sand