Because information from the outside plays such a small role in our perceptions, Maturana and Varela note something quite important for our activities with one another. We can never direct a living system. We can only disturb it. As external agents we provide only small impulses of information. We can nudge, titillate, or provoke one another into some new ways of seeing. But we can never give anyone an instruction and expect him or her to follow it precisely. We can never assume that anyone else sees the world as we do.