This is in fact what happens in the human body. For example, when you reach out to pick up a green can, your brain makes the decision to do the task but it's y

This is in fact what happens in the human body. For example, when you reach out to pick up a green can, your brain makes the decision to do the task but it's your spinal cord and peripheral nerves that carry out the detailed work – orienting the hand, managing grasp strength, controlling the arm movements etc. This process is mostly unconscious – you don't need to actively think about how to tense each muscle in the same way that an embedded controller wouldn't need to understanding the working of the entire robotic system to carry out its specific task. Much like the model suggested, the human body communicates feedback across layers — this process is crucial to maintaining balance, coordination and effectively reacting to the environment. For instance, if your fingers touch a hot stove, the sensory receptors in your skin will immediately send a signal to your spinal cord and a reflex action will make you pull your hand back even before you consciously perceive that the stove is hot.