**3. Conclusions**

The critical element in Figure 2, which holds the key, is the brain with its resistive will. This brain is both an object and at the same time a related subject. Simultaneously, the subject observes itself as an object. Determinists state that the object "somehow" produces the subject as a correlated epiphenomenal side-effect. The constellation of Figure 2 shows, however, that the subject can disprove the state of its relating object by refuting its predicted future. It is able to disprove decisions that the object seems to have taken.

If anything that is predicted about the system can be refuted, the system turns into a non-predictable one.

In 1970, the philosopher Alvin I. Goldman [3] proposed a thought-experiment of a perfectly informed, accurate deterministic predictive system, predicting that a subject will perform a certain action (say, raise her hand) at time *t*. If the subject were aware of that prediction, they can simply refuse to raise their hand at *t*. The thought experiment presented here is designed to support the same idea, by having the deterministic predictive system directly monitor brain and environment of a subject and feed the prediction back to them. It places the bases for the deterministic prediction inside the test subject's own brain and provides the test subject with what counts as neurological biofeedback, together with deterministic knowledge about their own brain, thereby bringing the thought experiment much closer to home for our intuitions about ourselves and our brains in a way that relates more directly to Libet's veto power claim.
