The summary your viewer would have written

After watching an explanation, a diligent viewer would write down the main points. The three or four things they need to remember. The key decisions, the critical steps, the things that matter most.

ExplainItOnce generates those key takeaways automatically. Not a transcript, not a full document: the main points, scannable and to the point. The kind of notes someone would write if they were paying close attention.

This serves two purposes. For people who watched the video before, it's quick reference: they don't need to rewatch 10 minutes to find the one thing they're looking for. For people who haven't watched yet, it's a way in: a quick scan to decide whether this is the explanation they need.