The most profound technologies are those that disappear. They weave themselves into the fabric of everyday life until they are indistinguishable from it.
Verified
designSource: "The Computer for the 21st Century", Mark Weiser, Scientific American, September 1991
These are the opening two sentences of Weiser's ubiquitous-computing paper, quoted verbatim and correctly. One of the best-documented attributions in computing; the text matches the published article word for word.