Playbook: optimize the first-30-minute window
Posts in the top engagement-velocity decile reach 2.7x further (n=350 posts, 30-day window). The first 30 minutes set the ceiling.
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Measure first-30-min engagement-per-reach for your last 20 posts.
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Post when your insights show peak active followers, not just online.
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Seed one genuine reply-prompt in the caption; early comments weigh heaviest.
Reach multiple by 30-min velocity decile:
Bottom: █ 0.8x | Median: ███ 1.4x | Top: ██████ 2.7x
So what: early velocity is the algorithm's strongest early signal. Win the first 30 minutes and distribution compounds for days — lose it and no later engagement fully recovers.
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Playbook: optimize the first-30-minute window
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