lineal waiting had done centuries earlier.

     A main fact about numbers has now been reached, with 
the link between the medieval positional zero and the 
Renaissance vanishing point. That both vanishing point and 
infinity were unknown in the Greek and Roman cultures can be 
explained as byproducts of literacy. It was not until printing 
extended the visual faculty into very high precision, uniformity, 
and intensity of special order that the other senses could be 
restrained or depressed sufficiently to create the new 
awareness of infinity. As one aspect of perspective and 
printing, mathematical or numerical infinity serves as an 
instance of how our various physical extensions or media act 
upon one another through the agency of our own senses. It is 
in this mode that man appears as the reproductive organ of 
the technological world, a fact that Samuel Butler bizarrely