Imagine a commuter who lets a streaming service pick the next show every night. The algorithm learns what holds attention, then feeds more of the same, because similarity and completion drive watch time. Over months, their taste narrows, not because they chose it, but because the system made novelty costly. That is the core problem: algorithms optimize for predictable engagement, not curiosity. My opponent may say users can still search, but defaults shape behavior far more than menus do. When millions get the same narrow loop, culture converges. That is boredom at scale, manufactured quietly.