devtoolsentity · one source so far

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Steadyhackernews

Signal score

Live items

Trajectory

⏳ Too early

needs a few more snapshots

Why this scored 9

every term, weighted

Velocity+12.9 / 40

Its fastest-moving item, measured against the pace of its own source

Acceleration+10.8 / 25

Whether that velocity is itself speeding up, as a per-hour rate

Cross-source spread+0.0 / 25

How many independent communities its own items come from

Recency+0.0 / 10

Decays to zero over 14 days, counted from when we first saw it

Saturation penalty−15.0 / 30

Subtracted once something is big and old — sized by its biggest item, aged from when we first saw it

Composite8.7

Weights are hand-tuned, not learned — we're calibrating them against realized trends as history accumulates. On an entity's first sighting there's no previous reading to compare against, so acceleration starts from a neutral prior rather than a measurement, and velocity falls back to engagement over its whole lifetime until a second reading exists. Full methodology

Signal history

7-day window (free)

The evidence

The live items this entity's score aggregates — every community independently talking about it right now. This is the corroboration, shown, not claimed.