If you put any stock in the ability of IQ tests to assess intelligence, we humans have spent the past century steadily getting smarter. (And if you don't put any stock in them, well, we humans have steadily gotten better at IQ tests.) Because IQ is a standardized measure, humankind's average score still sits at 100'but this isn't your granddaddy's 100. IQ tests are regularly recalibrated, and over the past many decades, when new subjects have taken an old test, they have almost always outscored their predecessors' average; Grandpa's generation might have hovered around 100, but the kids are scoring 115 ' which then becomes the new 100. This phenomenon is called the Flynn effect, and researchers still aren't sure what causes it. Perhaps it's due to more efficient education or better nutrition. The reason could be that modern environments contain more interesting stimuli or that modern gasoline no longer contains lead. I haven't seen anyone propose that trivia is to thank, but the...
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