source URL: a Firefox start page story with many links to sources for further reading.

getpocket.com - seems not too spammy though looks like click-bait. lmk. usually don’t notice them on new tabs

  • Head@lemmings.world
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    2 months ago

    It says in the article that the pupils enlarge with increased concentration. Perhaps more intelligent people are just always paying attention in new surroundings, where less intelligent people are more disinterested.