Open loops — the Zeigarnik effect applied to video hooks
The brain remembers incomplete tasks better than completed ones (Zeigarnik effect, 1927). An open loop hook deliberately leaves a question unanswered until the end. Done right, it holds attention through the full runtime.
The end-of-video promise
"By the end of this, you'll know X." Defers payoff explicitly. Adds 6–10% to retention curve tail.
The unfinished story
"I'll tell you what happened next — but first, the part nobody believes." Two loops, one nested.
The tease return
Mention X in the first 5s. Don't return to X until second 90. Brain holds the thread.
Frequently asked
Can I have too many open loops?
Yes. More than 3 simultaneous loops overloads working memory and the brain drops all of them. 2 is the sweet spot.
Related tools
Score your hook free
Free. No signup required.
Open the toolKeep exploring