Prismatic learns from everything you do. We have implicit signals (when you recommend, share, shave, remove, or click), and explicit signals, when you follow topics, publishers, or people. We know more about your interests than anyone, and you can expect that to be more true over time. Fortunately, we are only partially evil, so we mostly use this information to make your life more interesting, and only occasionally, we will use it to troll your newsfeed! :-P