I have made my most exciting discovery while reading Nil by Robert Martin Adams. His inventory of discontinuities and negations in the 19th century revealed to me that the cultures of the world have often been engaged in trying to restrict the continuum of visual space by various strategies of negation, nihilism. discontinuity, etc. Not knowing the properties of visual space, or the spatial properties of any of the other senses, has thus resulted in a huge waste of time and energy.