Watch
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 are drawn back to - tasks we've started but not finished. An open loop lingers in working memory, pulling attention until it's closed; once completed, the mind lets it 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.
