You are sitting across from someone in a conversation. Normal small talk. Nothing unusual. Then ten minutes later, they suggest something. An idea. A plan. A decision. And they present it as if it is completely their own thought. But it is not. You planted it. You put the idea in their head without them noticing, and now they are running with it, convinced it originated from them. This is not manipulation in the coercive sense. It is influence at the level of cognition. And once you understand how it works, you will see it everywhere. The technique mentalists use...