How does recent popularity work for a member's profile?
Recent popularity is a weighted popularity score across each content type, and the entire site, whose calculation is a function of several factors:
1. Number of unique people who looked at the content
2. Time spent on content
3. Time between content requests of unique people
4. The distance from "now" that the event occurred (not a calendar event but a user event like a page view or trend detection)
The weighting for each type of event drops off logarithmically as the distance from "now" increases beyond the a set interval. The interval time is also adaptive as it can increase depending on how heavily content is trending.