[He shakes his head.] No. No, it's more complicated than that. We use dreams. [He rubs the back of his neck, taking another quick glance around.] Years ago, the technology was developed to allow for shared dreaming-- the ability to enter somebody else's subconscious while asleep. It was used by the military, originally, as a convenient tool to train soldiers. They could shoot, kill each other, without any of the consequences, because... What happens when you die in a dream? [He gives her a knowing look, because come on, everybody knows this.] You wake up.

Eventually, more enterprising individuals entered the picture. And that was how extractors became involved. Corporations, world leaders, celebrities-- people with money and power, interested in the secrets of their competitors.