nostr:npub19fywau9ff6pjmjek7k4kukgdcdf7w4chne57upj5s7y87gk7v27qx7n5nv only 3 weeks of 5 topics will be retained.  You stop showing an interest in movies, it will drop off your topics.  When pages hit that API, they will get a random topic from each week.  Not all 15, just 1 from each week.    The page can't ask "is he interested in fly fishing". 

 They get RANDOM values from a SUBSET of your interests over a BRIEF window time.