Look at your product right now. Is it waiting for the user to act? That is old thinking. The fifth hack acts before the user thinks. It predicts, adjusts, and loops.
The "Hack of Products 5" works because it leverages . hack of products 5
Use tools like FullStory or Hotjar not just for clicks, but for rage clicks and dead clicks . Program your UI to react to these signals. Look at your product right now