I don’t usually click on ads, but this time I was curious. I saw an ad for an online iq test while reading about cognitive science, and I figured why not? What stood out was the mix of categories—some verbal, some spatial, some purely logical. It wasn’t just fluff or vague estimates. The whole experience was intuitive, and the interface didn’t distract me. For once, an ad actually led me to something that didn’t disappoint.