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Dr. Dave and co-host Jerry Trumbule respond to a listener comment about the previous show on artificial intelligence with more discussion of the intelligence concept, referring to a review by Malcolm Gladwell in the December 17, 2007 issue of The New Yorker, in which he discusses the Flynn Effect. James Flynn of the University of Otago in New Zealand has found that IQ scores across the world have been rising over time, 3 full points per decade. Also discussed are Feeling On The Internet and research on rats laughing and playing.

(Psychology podcast by David Van Nuys, Ph.D.)