To introduce a corrective force, AI developers frequently use what is called reinforcement learning from human feedback (RLHF). But where does that human preference data come from, and how much of it is needed for the input to be valid? In fact, social media platforms are actively using AI not just to analyze likes, but to predict them—potentially rendering the button itself obsolete. Courtesy of HBR Press Buy This Book At: AmazonBookshop.orgTarget If you buy something using links in our stories, we may earn a commission. Early in 2024, for example, Facebook experimented with using AI to redesign the algorithm that recommends Reels videos to users.