CreativePhD14 m+170 XP

Reels & short-form video: the formula behind retention

Hook science, pacing structure, caption strategy & the brief that produces scroll-stopping content

You have 1.7 seconds to stop the scroll before the algorithm's attention data decides your video isn't worth promoting. The hook must do three things: create a pattern interrupt (something visually or audibly unexpected), establish a reason to keep watching (curiosity gap, promise, or conflict), and be relevant to the target viewer. The most powerful hooks use what psychologists call the "open loop" — a question or statement that can only be resolved by watching to the end. "The mistake 90% of traders make in the first minute of a trade" is a stronger hook than "5 trading tips."

Key Points

▸1.7 seconds: the decision window
▸Pattern interrupt + reason to continue + relevance = hook
▸Open loops create compulsive completion
▸First frame must work as a still image — many users have autoplay off

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