X’s "For You" recommendation matrix heavily weights early interaction velocity (hours 1–4).
When initial likes exceed 1,000 and repost velocity exceeds 150 within 3 hours,
out-of-network impressions compound by up to 3.2x.
Viral Gate: 250,000 24h projected impressions.
Algorithmic Dampening: Saturation begins at Hour 14 as timeline refresh decays.
Creator Tip: Thread replies during Hour 3 to capture secondary notifications.