The Tetris effect demonstrates how sustained focus can reshape perception, as repeated exposure to Tetris shapes leads people to see those forms in clouds, buildings and everyday objects, according to the source. The article uses this phenomenon to illustrate a broader point: whatever occupies attention long enough will shape thoughts. While this can aid learning and discovery, the text notes that an increasing share of attention is no longer directed intentionally. Instead, platforms decide what appears on screens, effectively handing over control of mental focus. The source cites YouTube as an example, noting that the service recommends cooking and art streams aligned with past behavior but also inserts videos about stock‑market bubbles, global warming and conflicts in order to prolong viewing and increase ad exposure. Spotify is described as inserting AI‑generated tracks between real songs to avoid royalty payments, while LinkedIn allegedly buries genuine career updates beneath opinions from strangers who promote Microsoft‑linked interests. Reddit is portrayed as being populated by large‑language‑model accounts and Russian trolls, undermining the value of crowd‑sourced product advice. These practices, the article argues, amount to attention hijacking: when users let external algorithms dictate what they see, they give those entities a key to their brain. The piece contrasts this with an earlier internet era, where users relied on bookmarks to specific sites—video‑game news pages, tutorial hubs, niche anime blogs, or TV‑show wikis—to pursue chosen topics. Although harmful content existed, accessing it required deliberate effort; it was not served automatically after a pancake recipe or a cat video. The author maintains that the intentional internet still exists, though it is now buried beneath the commercial web. Returning to it involves choosing blogs, RSS feeds and tutorials over endless short‑form scrolls, accepting a slower pace where content is finite and updates are not instantaneous. Like any habit, the shift requires persistence; the text suggests that paying enough attention to this slower approach will eventually cause a mental shift, symbolized by the phrase “something will click in your brain.”
