Benjamin Libet's research on free will raises significant questions about the nature of human behavior and consciousness. While his findings suggest that brain activity precedes conscious decision-making, leading some to challenge the concept of free will, it is important to note that Libet himself does not conclude that all behavior is solely brain-based. He introduces the idea of a "free won't," where individuals can veto actions indicated by readiness potentials. This suggests that not all actions are predetermined by brain processes. The discussion emphasizes that while certain biological responses may be automatic, they do not encompass the entirety of conscious experience. The autonomic nervous system's role in survival is highlighted as an example of how physical reactions can occur without conscious intent, indicating a more complex interplay between brain activity and conscious decision-making.