mathematicians in the past. It has been assumed till now that 
so long as everybody is hypnotized by the same isolated sense 
or spell, that the resulting homogeneity of mental states will 
suffice for human association. That print increasingly 
hypnotized the Western world is nowadays the theme of all 
historians of art and science alike, because we no longer live 
under the spell of the isolated visual sense. We have not yet 
begun to ask under what new spell we exist. In place of spell it 
may be more acceptable to say “assumptions” or “parameters” 
or “frame of reference.” No matter what the metaphor, is it not 
absurd for men to live involuntarily altered in their inmost lives 
by some mere technological extension of our inner senses? The 
shift in our sense ratios brought about by exteriorizations of 
our senses is not a situation before which we need be helpless. 
Computers can now be programmed for every possible variety 
of sense ratio. We can then read off exactly what would be the