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Zeigarnik effect 0:32
A 32-second explainer of Zeigarnik effect, narrated over the same demo you can try yourself.
Try the interactive Zeigarnik effect demo
What this video covers
We remember - and keep feeling pulled towards - tasks we've started but not finished. An open loop sits in working memory and nags for attention until you close it; the moment you complete it, the mind quietly lets go.
That itch while one step sat unfinished - the way your eye kept sliding back to it - was the whole effect. The steps you'd already done went silent; only the open one tugged. Close the loop and the pull vanishes, which is exactly why progress bars and "profile 80% complete" nudges work so well.
