You can discover that there are other people—other agents—in the environment and learn about your relationship to them; unless a certain type of conscious experience makes this fact globally available to you, you cannot cooperate with them, selectively imitate them, or learn from them in other ways. If you are smart, you may even begin to control their behavior by controlling their conscious states. If you successfully deceive them—if, say, you manage to install a false belief in their minds—then you have activated a virtual organ in another brain.

