It's a modern fetish that we're brilliant while our ancestors were idiots. After all, they didn't have iphones, internets, or Kim Kardashian. This is also academic consensus, for what it's worth: called the Flynn Effect, the idea is people do better on puzzles so we must be smarter.
ORIGINAL LINK: https://www.profstonge.com/p/how-did-american-voters-get-so-dumb