What is the difference between `std::launder(ptr)` and `reinterpret_cast<T*>(reinterpret_cast<uintptr_t>(ptr))` in C++29?
Clarifies behavior differences crucial for safe low-level C++29 code.
Why this scored 28
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
~38
range 0–50
14-day
~38
range 0–53
30-day
~39
range 0–58
Signal history
7-day window (free)projected trajectory (estimate, not a guarantee)
Entities
Embed a live signal badge
[](https://www.signalcrest.app/topic/so%3A80010258)
Drop this in a README or blog post — it updates automatically as the score moves.