I remember reading and seeing a demonstration of how the youtube recommended videos had significant tendencies to tend toward the worst, were it be fake news, c

I remember reading and seeing a demonstration of how the youtube recommended videos had significant tendencies to tend toward the worst, were it be fake news, click bait, dumb stuff, mindless conspiracies or else. IIRC it was linked to the business model of youtube and that it was an effective way to keep the audience captivated longer hence shown more ads.