Right! And there, too, wise algorithms can add “smart wisdom of crowds” beyond simplistic ratings and weightings. I built on some promising ideas related to that from Cass Sunstein in my post, Filtering for Serendipity — Extremism, “Filter Bubbles” and “Surprising Validators" (and an update on that in “2016: Fake News, Echo Chambers, Filter Bubbles and the “De-Augmentation” of Our Intellect.”)