The collapse of Western IQ:
A 2013 study by Michael Woodley and colleagues found that average Western IQ has fallen by 14 points from the mid-1800s to the present day, almost an entire standard deviation.
In practical terms, this means that during the 1800s, the average Westerner was as intelligent as a modern-day college-educated accountant, teacher, pharmacist, etc. Today, the average Westerner is as intelligent as a modern-day shop assistant or office worker.
If our IQ fell by another standard deviation, the average Westerner would be as intelligent as the average Latin American, Middle Easterner, or North African.
You best start believing in societal collapses, anon: You're in one.
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Sources:
https://sci-hub.wf/10.1016/j.intell.2013.04.006
(https://doi.org/10.1016/j.intell.2013.04.006)
https://web.archive.org/web/20220128234813/http://www1.udel.edu/educ/gottfredson/reprints/1997whygmatters.pdf
