Cyberspace.
A consensual hallucination experience daily by billions
of legitimate oerators, in every antion, by children,
being taught mathematical concepts...A graphical representation
of data abstracted from the banks of every computer
in the human system. Unthinkable complexity. Lines of light
ranged in the nonspace of the mind, clusters and constellations of data
Like city lights, receding...

Neuromancer
William Gibson