image getting cached on an <img> tag but not on background-image on a <button> tag
Explains why cached images appear on <img> but not on background-image of a <button>.
Why this scored 39
every term, weightedEngagement gained per hour since the last capture, against the fastest item on its own source
Whether that velocity is itself speeding up, as a per-hour rate
How many independent communities are talking about the same entity
Decays to zero over 14 days
Subtracted once something is big and old — we rank what's next, not what's peaked
Weights are hand-tuned, not learned — we're calibrating them against realized trends as history accumulates. On a topic'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 guarantee7-day
~19
range 0–31
14-day
~18
range 0–32
30-day
~15
range 0–35
Signal history
7-day window (free)projected trajectory (estimate, not a guarantee)
Embed a live signal badge
[](https://www.signalcrest.app/topic/so%3A80008733)
Drop this in a README or blog post — it updates automatically as the score moves.