It has been reported, but not much discussed, that Norwegian researchers have discovered that intelligence, as measured by standard IQ tests, has been declining since 1975. I had been wondering about this myself, especially for the last couple of years. In the national league table of IQ tests, America comes in ninth, slightly behind Norway. In case you hadn’t guessed, Hong Kong and Singapore come in first. America’s average IQ score has gone down at about the same rate as in many European countries, which seems to suggest that intelligence is on the decline across the Western world.