The average working week was now about twenty hours – but those twenty hours were no sinecure. There was little work left of a routine, mechanical nature. Men’s minds were too valuable to waste on tasks that a few thousand transistors, some photoelectric cells, and a cubic metre of printed circuits could perform. There were factories that ran for weeks without being visited by a single human being. Men were needed for trouble-shooting, for making decisions, for planning new enterprises. The robots did the rest.

The existence of so much leisure would have created tremendous problems a century before. Education had overcome most of these, for a well-stocked mind is safe from boredom. The general standard of culture was at a level which would once have seemed fantastic. There was no evidence that the intelligence of the human race had improved, but for the first time everyone was given the fullest opportunity of using what brains they had.

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