devtoolsentity · one source so far

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for frontend engineers

Steadyhackernews

Signal score

as of 3d ago

Live items

Trajectory

↓ Cooling

7-day est. ~0

Why this scored 0

every term, weighted

Velocity+0.6 / 40

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

Acceleration+12.1 / 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−13.9 / 30

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

Composite-1.1 → clamped to 0

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

Outlook

low confidence · estimate, not a guarantee

7-day

range 0–12

14-day

range 0–15

30-day

range 0–20

Signal history

7-day window (free)

projected trajectory (estimate, not a guarantee)

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.