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Are People Becoming Dumber?

According to the fall in IQ scores, it is certainly a possibility:

Technology may be getting smarter, but humans are getting dumber, scientists have warned.
Evidence suggests that the IQs of people in the UK, Denmark and Australia have declined in the last decade.
Opinion is divided as to whether the trend is long-term, but some researchers believe that humans have already reached intellectual peak…..
The most pessimistic explanation as to why humans seem to be becoming less intelligent is that we have effectively reached our intellectual peak.

And the proof is that final sentence.