I was listening to episode 369 of Cal Newport's podcast today and found the deep dive interesting. Cal talked about the Flynn effect, the observed increase in IQ scores over time. While our IQs have increased over the generations, they have recently started to decline.
The reasons for the decline are speculated to be the rise of distracting media, starting with television, then radio, and finally the internet. While the increase in IQ has slowed over the generations, the decrease started around 2010, which is the same time smartphones became a household staple and social media came soon after.
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