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by bemmu 1138 days ago
Suppose today you go on YouTube and see 10 recommended videos.

There are thousands of videos it could put in these slots, so they'll be ranked and only the very best (based on metrics and your interests) will make the cut.

Video #11 might have been great, but wouldn't get suggested to you merely because it had a few seconds lower average watch time. Because of this I'd expect a 10% better video (like %, watch time) would improve its views by some huge nonlinear factor (maybe double?).