The test that convinces people who've never used AI

Give a room a block of text and ask: how many distinct five-letter words are in here? You can't do it with Ctrl-F. You can't do it with Google. It takes a person several minutes and a lot of squinting, or it takes Claude a few seconds. For someone who has genuinely never used AI for anything, this is usually the moment it clicks, not because we explained it well, but because they just watched it happen.