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Watch Time

Definition

Total seconds watched, added up across everyone the video reached. Recommendation systems weigh it above likes, above follows, above almost anything a viewer taps. A 30-second video watched to the end by 200 people beats a 60-second video that 400 people abandoned after four seconds.

Two related numbers get confused constantly. Watch time is the total, summed across an audience. Completion rate is the fraction of viewers who reached the end. They move independently, and short-form platforms lean hardest on the second one, because a finished 20-second video is a far cleaner signal than a half-watched 60-second one.

That has a counterintuitive consequence: cutting a video shorter often raises its distribution. A 45-second script trimmed to 30 gives up 15 seconds of possible watch time per viewer and can easily win more than that back in reach, because completion climbs and the feed shows it to more people. Most creators discover this by accident, after posting something they assumed was too short.

The curve worth studying is drop-off rather than the total. Nearly all of the loss happens inside the first three seconds, and a second cliff usually appears wherever the video stops delivering on its opening promise. Both are fixable. Neither is fixed by better footage.

Captions are the cheapest lever available. Around 85% of social video is watched on mute and captioned versions see up to 40% more watch time, which is a bigger effect than most editing decisions produce.

Pacing is the second lever. A scene running four seconds longer than the line spoken over it leaves the viewer looking at a still image while nothing happens, and that dead air is where people leave. Orange sizes each shot to the narration it carries, which removes the most common source of mid-video drop-off before anyone notices it was there.

Everything else is downstream of the first sentence.

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