A Walkers bag on the pavement immediate interacts with the users passing by. They either ignore it or respond to it with a change of their behaviour. With a human being or any living organism the result is generally unpredictable as it follows a nonlinear pattern of organization.

Living systems respond autonomously to disturbances from the environment with structural changes, i.e. by rearranging their pattern of connectivity. A living organism records previous structural changes, and each structural change influences the organisms future behaviour. A living system can never be directed only disturbed, but will maintain the freedom to decide what to notice and what will disturb it. (Maturana / Varela - The Santiago Theory of Cognition)