Gary, you’re right that science doesn’t provide incontrovertible answers to metaphysical questions like free will. That’s because science, by design, doesn’t try to prove anything. It recognizes that absolute proof is unattainable and focuses instead on what can be falsified. Science works by gathering evidence, testing hypotheses, and ruling out inconsistencies with our observations. It tells us what doesn’t fit the overwhelming mountain of evidence we’ve accumulated over centuries.Gary Childress wrote: ↑Sun Jan 12, 2025 9:23 amI'm not a scientist nor in the academic profession but last I heard the argument regarding whether humans have free will or not is not incontrovertible. ChatGPT seems to back that up. Why would I want to believe that we humans have no free will? Is there some advantage to it that I should skip from being somewhat unsure to what amounts to having some degree of faith that humans have no free will?BigMike wrote: ↑Sun Jan 12, 2025 8:32 amGary, none of your musings about anxiety, pain, or pleasure refutes determinism. They’re fascinating questions, but they pivot away from the central issue: whether our experiences, emotions, and choices are causally determined by physical processes. They are. Your reluctance to accept this stems either from a lack of understanding of the science or an unwillingness to face its implications, possibly because you find more comfort in imagining a "ghost in the machine." But ghosts, by their very definition, cannot interact with the physical world. They are metaphysical placeholders for ignorance, not answers.Gary Childress wrote: ↑Sun Jan 12, 2025 1:34 am What about anxiety? I feel something we humans call "anxious" when I ponder things like my own death. Can a calculator feel anxiety if you tell it you are going to unplug it and throw it away? Or if not now, could a person create a calculator that felt anxiety when the person who designed it told it that it was about to be unplugged and thrown away. How would YOU design anxiety?
And here's another kicker; how would YOU know or figure out whether the calculator was feeling anxiety and not just acting similar to a living being like you or me who feels anxiety (assuming you have ever felt anxiety)? By what means would you spot "anxiety"? Is "anxiety" nothing more than an increase in pulse or burying one's head under a pillow when the word "death" is mentioned? Or is there something more to it than that? And if there is more to it than just an increase in pulse and a propensity to bury one's head under a pillow, then what is that "more" and what does it look like, sound like, taste like, feel like or smell like? Can you identify the smell, taste, feeling, appearance or sound of anxiety in a calculator, if it had such things?
And if you cannot tell such things as whether something else has anxiety or feels pain or pleasure, does that mean that particular something else doesn't have such feelings (at least as far as you are aware)?
Anxiety, pain, and pleasure are entirely natural phenomena. They’re the result of complex neural processes governed by physical laws. Anxiety, for example, involves the activation of specific brain regions, the release of stress hormones, and heightened physiological responses. These mechanisms are well-documented and understood, and they occur without the need for a "higher" or non-physical entity.
As for your calculator analogy, it’s flawed. We already create machines that can simulate certain emotions or behaviors, like voice assistants apologizing or expressing concern. However, these are not the same as human feelings because they lack the complex neural architecture that generates subjective experiences. If a machine were advanced enough to mimic human emotional responses with sufficient complexity, it might achieve something akin to anxiety—but even then, it would be causally determined, just as it is for us.
So I say to you, sapere aude: dare to know. Dare to confront the evidence, the science, and the reality that consciousness, emotions, and even the fear of death are products of physical processes. They are no less profound or meaningful for being part of the deterministic fabric of the universe. But clinging to the notion of a "ghost" without evidence is a refusal to know—a retreat from truth into comforting illusions.
You said:
What does science tell us about whether human beings have free will or not?
ChatGPT said:
ChatGPT
Science offers fascinating insights into the debate about free will, though it doesn't provide a definitive answer. Here’s a summary of key findings and interpretations from neuroscience, psychology, and physics that are relevant to the question:
Neuroscience and Free Will
Libet Experiments (1980s)
What Happened? Neuroscientist Benjamin Libet measured brain activity using EEG while participants were asked to move their fingers at a moment of their choosing. He found that brain activity ("readiness potential") occurred several hundred milliseconds before participants reported their conscious decision to move.
Implications: Some interpret this as evidence that the brain "decides" before we become consciously aware, suggesting free will might be an illusion. However, others argue this doesn't disprove free will; it might only show that unconscious processes prepare for actions while conscious awareness oversees or vetoes them.
Follow-up Studies
Newer studies using fMRI show similar results: patterns of brain activity can predict decisions several seconds before a person is consciously aware of them.
Criticisms: These experiments often involve simple, arbitrary choices (e.g., pressing a button), which may not reflect the complexity of real-world decision-making. Some argue free will operates more meaningfully in complex moral or reflective decisions.
Psychology and Behavioral Science
Role of the Unconscious Mind
Many psychological studies suggest that much of our behavior is influenced by unconscious processes—habits, biases, and environmental cues—rather than deliberate, conscious decisions.
Example: Studies on priming show that subtle environmental stimuli can shape decisions without our awareness.
Self-Control and Decision-Making
Research into self-control (e.g., the "marshmallow test") suggests that individuals with better control over impulses are more successful in life. However, such traits may be shaped by genetic predispositions and environmental factors, challenging the notion of absolute free will.
Physics and Free Will
Determinism in Classical Physics
Classical physics (Newtonian mechanics) describes a deterministic universe where every event follows from prior causes. If the brain operates like a physical system, this could imply determinism.
Quantum Mechanics and Indeterminism
At the quantum level, some events (e.g., particle behavior) appear to be probabilistic rather than deterministic. However:
Supporters of Free Will: Quantum indeterminacy might introduce an element of unpredictability into the brain, potentially allowing for free will.
Critics: Randomness isn't the same as free will. A random decision is still not a "free" decision.
Challenges to the Free Will Debate from Science
Illusion of Free Will
Some researchers, like neuroscientist Sam Harris, argue that free will is an illusion. According to this view, our thoughts and actions arise from processes in the brain that we do not control, even though we feel as though we are making choices.
Emergence and Complexity
Others, like philosopher Daniel Dennett, argue that free will might emerge from the complexity of the brain. Even if our decisions are influenced by prior causes, the capacity to reflect, deliberate, and plan introduces meaningful agency.
Where Science Leaves Us
Science leans toward the idea that our decisions are heavily influenced—or even determined—by unconscious processes, genetics, and environment. However, it doesn't entirely rule out the possibility of free will, especially when defined in nuanced ways, such as:
The ability to act according to one's own goals and desires (compatibilist free will).
The emergent sense of agency arising from complex brain functions.
In short, science complicates simplistic notions of free will but doesn't entirely resolve the debate. Many scientists and philosophers believe that how we define free will—and whether it’s a practical or metaphysical concept—determines how we interpret scientific findings.
What do you think? Does the evidence for unconscious processes or determinism change how you view your sense of control?
When it comes to free will, science can’t outright "prove" it doesn’t exist—nor can it prove psychokinesis or telekinesis are illusions. What science does say, however, is that if phenomena like free will or telekinesis exist, they would violate foundational principles like the conservation laws of physics—the same laws that underpin all of our scientific knowledge. And yet, despite meticulous observation and experimentation, no evidence has ever emerged to suggest that these principles are false.
This doesn’t mean the conversation ends. It means we approach claims of free will or similar phenomena with justified skepticism and caution. If these ideas were true, they would require rethinking the very framework of physics, biology, and neuroscience. Until there’s evidence to support such a monumental shift, determinism remains the most consistent explanation for how our brains and the universe operate.
So no, you don’t need to “skip to faith.” The evidence we have overwhelmingly supports a deterministic view of the universe, even if it doesn’t align with how it feels. Science invites us to dare to know—to follow the evidence wherever it leads, even if the conclusions challenge our intuitions.