FlyWealthCo™ on Instagram: ""We should allow up to four lines to disappear at once." It's a tiny change in code, but it's the difference between a good game and a global phenomenon. In this scene, the creator of Tetris realizes that simply clearing lines isn't enough—players need a "celebration" for high performance. He iterated until he found the "Tetris" moment: clearing four lines at once for a massive dopamine hit. For entrepreneurs, this is a lesson in product iteration. Your first version