 Subliminal advertising tactics—along with hypnosis and behavioral conditioning—are commonly portrayed as effective methods to influence others without their knowledge and thus without engaging their capacities for rational deliberation. The effectiveness of such tactics is almost certainly wildly exaggerated in the popular (and sometimes philosophical) imagination. However, if we imagine them working as well as they are sometimes portrayed, then they would constitute clear examples of what it might mean to say that manipulation bypasses reason. Thus, we might understand manipulation in terms of bypassing rational deliberation, and understand “bypassing rational deliberation” in terms of exploiting psychological mechanisms or techniques that can generate behavior without any input from rational deliberation.