We rewrote only the opening sentence on 25 videos. Median 30-second retention rose from 61% to 74%.

We rewrote only the opening sentence on 25 videos. Median 30-second retention rose from 61% to 74%.
Not the thumbnail. Not the edit. One line. We cut every "in this video" and replaced it with the single most contested claim of the piece.
The first sentence is a contract. "In this video" promises homework. A hot claim promises a fight.
Most of you waste your most valuable second. Fight me.