Neil Gershenfeld "When Things Start to Think" 1999 p.63 Thomas Watson, the chairman of IBM, observed in 1943 that "I think there is a world market for maybe five computers." In 1997 there were 80 million personal computers sold. To understand his impressive lack of vision, remember that early computers were * large machines * housed in specialized rooms * used by skilled operators * for fixed industrial operations * with a limited market From there it was too hard to conceive of a computer that could fit on a desk without crushing it, much less on a lap. Unseen beyond that horizon in packaging lay the revolutionary implications of personalization. Now consider machine tools. These are the large mills and lathes and drills that are used in factories for fabrication. For the ordinary person, they are about as exciting as mainframe computers. In fact, they really are quite similar. Machine tools are * large machines * housed in specialized rooms * used by skilled operators * for fixed industrial operations * with a limited market Sound familiar? With the benefit of hindsight, plus a peek into the laboratory to see what's coming, this time around we can do better than Thomas Watson and recognize the impending arrival of the Personal Fabricator. p. 205 ...every group now has an oscilloscope.... basic computer literacy is quickly coming to include machining, and circuit design, and micro-controller programming.