this post was submitted on 08 Oct 2025
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Saturday Morning Breakfast Cereal
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I honestly don't think humans have free will. We can see on an MRI the part of the brain used to move our arm firing before we consciously decide to move. We're not making decisions, our brain is and only after the fact does it send an executive summary to the homonculous behind our eyeballs. And like a disconnected executive we say, "I did this!"
We also see a bunch of neuronal activities prior to the section of the brain that's known to control movement fires, moving the arm - therefore that's proof that we have consciously made the decision before moving the arm. Same logic.
The main problem with this is that we have a very, very loose understanding of how brain functions work - neuroscience is still in its infancy - and when people like Sam Harris show off these MRI studies as conclusive proof of a deterministic universe with no free will, they gloss over that fact in their rush to the conclusion.
I agree with this.
Have you ever looked into split brain patients? Having learned about the confabulation and stuff that happens automatically for them when the brain cannot possibly know what’s happening, I’m pretty sure we all just make up the reasoning for our behavior after we are compelled to perform the behavior.
Same with brain tumors that cause drastic changes in behavior, including shedding of morals. If we have no control over our biology, we really have no control over our psychology or behaviors, either.
At the same time I’m unsure how I feel about most people believing in free will. On the one hand I’m sure it helps somewhat with curtailing bad behavior, on the other hand it causes us to hold people personally, morally, accountable for transgressions, and punish them for behavior they had no real control over. I’m uncomfortable with that portion.
It's still your brain, ergo you're making that choice.
The simple way of seeing it is that you're executing machine code but it takes time for the compiler to make it readable in a way for you to interpret the code you just fired off. Basically half your brain that is you is running on a low level language and the other one is on a higher level language. That's why we're able to (literally) compile the abstract and simple into complex language.
Likewise, it's why you can literally program yourself to function differently by writing high level language that after compilation will be interpreted in the future by the hardware. Hence things like the "cycle of depression" and "placebo effects".
So it's still free will, there's just a bit of lag between the CPU and the software. Because the CPU is just hardware running binary, it's why it's easier to decrypt and read the signals bring processed - thus why we have machines that know what you'll think before you know what you'll pick, but not machines that can read thoughts (those can be defeated by making it so you don't become aware of what you'll pick through blind randomization btw - also another similarity with computers).
Hmm, I'm not convinced that this necessarily precludes the possibility of free will. It could just be that "free will" in practice is more complex and more subtle than the conscious recognition of that free will in action.
In your example, "I" decided to move my arm, apparently after the action happened - well the rest of my nervous system, beyond just the conscious decision-making part, is also "I".
The body is full of reflexes that people attribute to skill.
If you had free will, you'd be able to will yourself to stop breathing and die but you cannot. You are biological machine.
The brain has tricked itself into believing it is more than it is despite mounting evidence.
I'm not sure how this is relevant. So the body is full of reflexes - so what?
You'll have to justify this conclusion further. I don't agree that an instinct for self-preservation necessarily means that free will is an illusion. Again, my point is that part of "free will" may extend beyond the conscious into the sub- and un-conscious. Therefore, even if "I" unconsciously choose to continue breathing and not die, that is still "I" making that decision, regardless of whether I consciously recognize that decision or not.
This I certainly acknowledge is a possibility, the mind tends to construct narratives and justifications as a matter of course. However, this again does not preclude the possibility of free will.
That is, just because the mind tricks itself sometimes does not mean that it does so always, and that this accounts for all observed human behavior in all cases.
If you are going to cite "evidence", please present it.
IMO nothing "has" free will objectively. It's observer-dependent, in that "Does this have free will?" is exactly equivalent to asking "Can I perfectly predict the behavior of this?"
This is correct. What I generally tell people is that, due to the complexity and unpredictability of human cognition, it's practically indistinguishable from free will (but ultimately deterministic, otherwise why even have psychology.)
After all, a coin flip is considered random but there are observable forces acting on it to ultimately determine if it is heads or tails-- and that's just things like the initial force and angle, the air resistance, etc., and that's still considered random. Now imagine something magnitudes more chaotic and complex and you have the human experience.
This is the classical understanding of it. Determinism basically says "given some initial state of the universe, you can pre-determine the end state before it happened". E.g. there would be enough information at any point in the timeline of the universe before the 9/11 terrorist attack to infer that it will happen, just like with your coin flip example. So the question becomes whether true randomness exists. If it does, then it will have a major say in how the universe evolves between its beginning and 9/11, due to how chaotic systems work. Your coin flip example is a typical argument against true randomness, but modern quantum mechanics challenge this point of view, opening up some more interpretations. I suggest the Wikipedia article on Determinism. It has some very interesting points.
Thats…not how any of this works. What study are you referencing?