"There are two persistent and coexistent metaphors for the Internet: the cloud and the cave. The cloud represents precognition; the cave represents discovery. The cloud possibly originated with J.C.R. Licklider’s 1963 conception of the Intergalactic Network, but the cave dominated the 90’s: the Internet was an uncharted space navigated by contiguous links and lit by the glowing text of other users."
– Allen Riley