Choice & Blame (Free Will) · Episode 2 · 20-min read

It's all atoms

Transcript · audio coming

Take a choice you were certain was your own.

Not a trivial one. A real one. Whom you married, or did not marry. The job you took, or the job you walked away from. The argument in which you finally said the thing you had held back for years. A moment when you faced a decision and felt yourself make it — and afterwards you would have insisted, without hesitation, that it was you who decided, and that it could have gone the other way.

Now consider the person who saw it coming. There is usually one. The mother who said, before you had spoken to anyone, that you were going to take that job. The old friend who knew you would go back to him a week before you did, and who said nothing, because there was no point: you were going to, and being told would not have changed it. The partner who orders for you correctly before the waiter reaches the table.

There is a distinct discomfort in being predicted like that, and predicted correctly. It is not flattering. In the moment, the choice felt open — it felt like something you were deciding then and there, out of nothing. And here is someone who says the answer could be foreseen. Not because they can read minds, but because they know what you are made of. They know your history, your temperament, the shape of what you want, and from that they worked out in advance what you would do. The choice you felt yourself make freely, they had already watched you make.

And if one person who knows you well can predict it, consider what something that knew you completely could do. Every cell, every memory, everything that was pressing on you in that moment. Would anything be left over — anything that was not already settled in you before you spoke? Or is the choice simply the last event in a long sequence of events you did not set in motion, following from the ones before it exactly as they required?

That is the question for tonight. Many people think the answer is obvious, and bleak, and final.

This is Philosophy for Us — philosophy for everyone, no degree required. Choice and Blame, episode two of eight.

Last time, we located what blame rests on. Whenever we are angry at someone, or ashamed of ourselves, beneath the feeling there is a single quiet claim: they could have done otherwise; I could have done otherwise. And we found that most of us have never checked whether that claim is true. Then we did the thing that runs through this whole series: we took a question we had been carrying as one lump and separated it into two. Is it true — could anyone ever really have done otherwise — and, separately, what is blame actually for. We left those two apart.

Tonight we take the first of them. Is it true. And we approach it from the side most likely to answer no.

Many listeners arrive already holding this view, or half-holding it — the way one holds an idea heard often enough to suspect it is right. The view is that there is no real "could have." That every choice a person has ever made was the result of things they never chose: their genes, their childhood, the exact state of their brain a moment before they seemed to weigh in. That when you trace it back far enough, there is no point at which the person breaks into the sequence and starts something new. It is causes all the way back, with no first link, and the person you love never had a chance, and neither did you.

It is the most powerful case against everything last episode described. So tonight we are going to build it — not knock it down, but build it, at full strength, in the form its ablest defenders give it. And then, once it is standing, we will find the one place where it does not hold: the point the rest of these episodes work through.

Begin with a choice and trace it backwards.

Suppose a person took a job. Why? Because they wanted the work, the money helped, and the city suited them. Grant that. But ask where those came from. The wanting — no one sits down one afternoon and decides to become the kind of person who wants that kind of work. The wanting is already there when they look. It grew out of a temperament they were born with and a life they did not select: a teacher who first inspired them at nine, a parent whose approval they were pursuing, a year of being broke and the resolution never to be broke again. Each of those is a cause. And not one of them is something the person authored. They were given. They happened to the person, and then they became the person who did the choosing.

Now take the next step back. The teacher at nine — one does not arrange to be in her class. The temperament one is born with — no one chooses their own genes; they were not present. The parent whose approval shaped them — one does not select one's parents, or the particular things they happened to praise and withhold. Keep going. Every cause depends on a cause before it, and every one of those lies before the person was old enough to have any say at all — back past the first memory, back to a single fertilised cell, the meeting of two histories the person had nothing to do with.

This is what philosophers call the regress, and it is the core of the determinist's case. Whatever one points to in oneself and calls the real self, the part that chose — that part has a cause. And that cause has a cause. One can follow the sequence back as far as one likes and never arrive at a link that is purely oneself: a cause that started itself, that entered the sequence from outside and set the next event going with nothing before it prompting it. There is no such link. No one is the first cause of themselves. A person enters their own life already formed, already inclined by many thousands of things they never agreed to.

This is not mysticism, and it is not pessimism, and it is not even controversial. It is simply what cause and effect look like once we are honest that we are part of the world and not standing outside it. Two centuries ago, Pierre-Simon Laplace put the point as plainly as it has ever been put. Imagine, he said, an intellect that knew the position and motion of every particle in the universe at one instant, and knew all the laws that govern them. To that intellect nothing would be uncertain; the whole future would lie open to it as plainly as the past. And we are made of those particles. The brain is. The thought occurring in a person now is a physical event in a physical object, obeying the same laws as everything else. So to Laplace's intellect, a choice agonised over for a month was never in doubt; it could determine the decision from the state of the brain in advance. The agony was real. The outcome was already settled in the mechanism.

The force of this is real, and it is not a trick. Trace any single choice back honestly and the regress is simply there, and it does seem to leave no room for a self that authored anything from nothing. The wanting was caused. The weighing was caused. The brain that did the weighing was itself built by causes. And "could have done otherwise" — the claim on which our whole moral life rests — begins to look like a story told from the inside by a creature that cannot see the sequence it belongs to.

That is the case. Hold it in mind. We are not finished building it — there is a harder version coming, with the laboratory results many people believe settle the matter for good. But its force is already clear. It undercuts last episode's question and says: do not trouble to ask whether he could have done otherwise. No one could ever have done otherwise. There was never a "could have" there to check.

Now the part people invoke when they want to declare the matter closed: the laboratory.

In the early 1980s, a scientist named Benjamin Libet ran an experiment that has troubled this debate ever since. The design was simple. He sat people down, attached electrodes to their scalps to record electrical activity in the brain, and asked them to perform one trivial action whenever they felt like it — to flex a wrist or a finger. No cue, no instruction about when. Simply: do it when the urge arrives, and watch a fast-moving clock so you can report the exact moment you decided to move.

There is a known brain signal that builds up before a voluntary movement — it had been measured back in the 1960s, a slow rise of electrical activity called the readiness potential. So Libet could line up three moments: the moment the readiness potential began to build, the moment the person reported consciously deciding to move, and the moment the muscle actually moved.

Here is what he found. The readiness potential began rising a measurable fraction of a second before the person reported deciding. The build-up came first. The conscious decision came second. The movement came third. Read in the most dramatic way, this says that the brain had already set the action in motion before the person experienced choosing it. On that reading the feeling of deciding was not the cause of the action; it was a spectator — a report the mind composed a fraction of a second late, about a decision the brain had already begun.

And it did not end with Libet. Decades later, with better instruments — brain imaging rather than scalp electrodes — researchers ran a sharper version. In 2008, a team led by the neuroscientist John-Dylan Haynes had people choose freely between two buttons, left or right, while a scanner recorded their brain activity. The team found patterns that let them predict, better than chance, which button a person would press — and predict it several seconds before the person reported being aware of choosing. Not a fraction of a second. Several seconds.

Hold on to that phrase — better than chance — because it matters, and the popular retelling usually drops it. This was a statistical advantage, not flawless mind-reading. The scanner was not reading the decision straight off the person; it was doing somewhat better than a coin toss at guessing where they would land. But even a real advantage, several seconds early, is enough to unsettle the account most of us carry — the account in which the conscious self is where the choice begins. If something in the brain is already leaning one way before the person feels themselves decide, then the feeling of deciding is not where the action starts. It comes after the brain has already begun.

One can see why people take this up and treat it as the final word. It looks like Laplace's intellect made real — no longer a thought experiment but an actual machine, determining the choice from the brain before the chooser is aware of it. It looks like proof.

The honest account reaches nothing like that far.

These experiments are real, and they are unsettling, and they are also strongly contested — not by people defending anything mysterious, but by careful scientists who think the dramatic reading goes well past what the data show. Consider what is actually being measured: a person deciding to twitch a finger for no reason. That is about as far from a moral choice — should I take the job, should I forgive him — as a decision can be. Nothing is at stake, there are no reasons to weigh, there is nothing to deliberate. Whether the mechanics of a meaningless twitch tell us anything about a hard, reasoned, life-shaping choice is a genuine question, and the answer is not obviously yes.

And the headline reading of the readiness potential has been challenged at its root. In 2012, Aaron Schurger and colleagues argued that the rising signal is not a decision being made at all. On their account it is closer to ordinary random fluctuation in the brain, drifting up and down, and the movement happens to occur when the fluctuation crosses a threshold. On that reading the readiness potential is not the brain deciding before the person does. It is the ordinary activity of a nervous system, and the moment of action falls on a rise that was never a hidden decision in the first place.

So this is where the laboratory actually leaves us. It does not prove the matter closed. Anyone who tells you neuroscience has shown free will to be an illusion, full stop, is presenting the dramatic reading as though the careful one did not exist. But — and this is why we built it — it sharpens the intuition from the last segment into something hard to dismiss. Even setting the contested experiments aside, the plain fact remains: choices are made by a brain, the brain is a physical thing, physical things run on causes, and the feeling of being consciously in control, free and uncaused, is the feeling a fully caused creature would have. The laboratory does not settle the question. It makes it very hard to keep believing that the felt sense of choosing is, by itself, any evidence at all that one was free.

So the case is now as strong as it can be made. The regress says one is never the first cause of oneself. The laboratory suggests that even the feeling of deciding may arrive after the deciding is done. Put them together, and the determinist has earned a real conclusion: there is no link in the sequence that is purely you, and there never was.

And now to the thing the determinist usually gets away with — the step taken immediately after this one, which has not been earned at all.

Go back over what the determinist has just established, and watch for the point where it slips.

The case proved one thing, and proved it well: every choice a person makes is caused. Caused by the brain, by their history, by their nature, by the sequence running back behind them without end. Grant it. I grant it. Let it be flatly true: every choice fully caused, no exceptions, no special link where a person starts themselves from nothing.

Now listen to the conclusion people draw, and listen for the exact word at which it turns. Every choice is caused — so no choice is up to you. It is all determined — so you are not free. You could not have done otherwise — so there is no "you" doing anything; you are not the one acting.

Do you hear it? The argument earned the word caused. And then, without slowing, without a single further step, it used that word as though it also meant not up to you. As though determined and unfree were two names for one thing. They were treated as one thing. They were never shown to be one thing.

And the moment we ask whether they really are the same, the argument comes into question.

Try it on yourself, and this time do not use a case of blame. Use something you are proud of. A hard, good thing you actually did. The time you told the truth when a lie would have been easier and cheaper, and it cost you, and you did it anyway. The person you cared for when no one was watching and no one would ever know. Bring up the truest one you have — the one that, if your life were weighed, you would want counted.

Now apply the determinist's reasoning to it, all the way, without flinching. That courage — where did it come from? A parent who modelled it, perhaps, or who failed to, so that you resolved to be different. A book that reached you at the right age. A temperament that moves towards the hard thing rather than away from it, which you did not choose. Trace it back, and yes: it dissolves into causes, exactly like everything else. There is no link in that sequence either that is purely you, producing the good act out of nothing. The courage was caused. Fully. Just as the determinist says.

So now say the conclusion aloud about this one. It was all caused — so it was not really I who did the good thing. So I am not entitled to be proud. So the courage was not mine.

You do not want to say that. And it is not vanity that stops you. Something in you knows the courage was yours — that it came through you, that it was your own nature acting, your own history at work in it, the truest expression of who you are that there could be. That it had causes does not make it feel like something that happened to you, the way a sneeze happens to you, or a seizure. It feels like the opposite: like something that happened as you, the most fully yourself you have ever been.

And that is the step the determinist passed over. Because you have just granted that the act was fully caused, and in the same breath refused to grant that it was therefore not yours. Both at once. Which means — if you are honest — that you do not actually believe caused and not mine are the same thing. You cannot, because you have just held a case in which something was completely caused and completely yours, and felt no contradiction at all.

Here is the question the determinist skipped, and it is the one that opens the whole problem up. What does "could have done otherwise" actually require? When your anger insists that the man at the table could have done otherwise, is it insisting that his choice had no cause — that it broke into the world from nowhere, uncaused, out of a self with no history? Is that the freedom blame needs: to be an uncaused event? If it is, then the determinist is right and there is nothing more to say. But perhaps it is not. Perhaps the freedom that matters — the freedom that makes the courage yours and the cruelty his — was never the absence of causes at all. Perhaps it is a matter of which causes, and whose, and how they operate.

I am not going to answer that tonight. This is not evasion; it is that the answer is an entire position, defended by serious people, and it deserves its own hour. But consider what has happened. We built the determinist's case in full. We granted the regress. We granted the laboratory. We granted that every choice is caused. And the case still did not deliver what it promised — that you are not free, that no one could have done otherwise, that blame is a mistake left over from an older view. It delivered caused. And then it took unfree, a step it never earned.

So where has tonight left us? It is worth stating plainly, because it is not where one might have expected.

We came in with the strongest case against free will there is, and we did not avoid it. We built it. The regress is real: trace any choice back and you never reach the link that is purely you, the place where you start yourself from nothing. The laboratory is unsettling, even once the exaggeration is set aside: choices are made by a brain that runs on causes like everything else, and the feeling of free choosing is the feeling a fully caused creature would have. All of that stands. Anyone who arrived thinking "it is all atoms" should leave thinking the atoms case is better than they knew, not worse.

But we also caught something. The case proved that every choice is caused — and then took a second claim it never proved: that caused means not yours, that determined means unfree. And tested on the best thing you ever did, that second claim came apart. We found something fully caused that was, beyond any doubt, completely someone's own. So the two words separated. And the question changed shape. It is no longer whether every choice is caused — the answer to that may simply be yes. It is now whether being caused actually removes the freedom. Is the freedom that blame needs the absence of causes — an uncaused event — or is it something else, something a caused creature could still have?

See what this does and does not offer. It does not offer the comfort some listeners came for. If part of you was hoping the atoms would excuse you — it is all determined, so no one is really to blame, so I can set the anger down and stop lying awake — you do not get that tonight, and perhaps not ever, and here is why. It has not been earned. "It is all caused" does not reach "so no one is to blame" until someone shows that caused means unfree, and no one has. The determinist reached for that same relief tonight, and we watched it come to nothing. To set blame down because "it is all atoms" would be the same error the believer makes in the other direction — settling a practical matter by appeal to the metaphysics. We separated those two questions last week precisely so that we would stop doing that.

And remember the second question, the one that does not wait. Suppose the determinist is entirely right — every choice caused, the "could have" an illusion. One still has to decide what to do with the man at the table tonight. One still has to decide what the anger is for, whether it helps, whether one would keep it. "It is all atoms" answers none of that. It was never going to. That question remains no matter what the physics turns out to be.

So we are not left with relief. We are left somewhere harder, and more interesting, than where we began: the real disagreement now turns on a single word — free — and on what it actually requires.

And that is where next episode begins. Next time we meet the philosopher who addresses precisely the question we have just opened and builds his whole position on it. He looks at the determinist and says: agreed. Every choice is caused, the regress is real, you are never the uncaused author of yourself — I grant all of it. And you are still free, and your blame is still fair, and here is precisely why. He holds that the whole dispute between free will and determinism is a confusion — that a person can be completely determined and completely free at once, with no contradiction, because freedom was never a matter of escaping causes in the first place. It is the most reassuring answer in this whole debate. A great many able people think it simply dissolves the problem.

So next time we give that case the same full hearing we gave the atoms tonight — and find out whether it really dissolves the problem, or merely renames it.

Here, then, is what to carry out of tonight. You are a fully caused creature who has not yet been shown to be an unfree one. Place that creature across the table from the man you blame — still blaming, unable to show the blame is deserved, and unable to stop — and you have exactly the problem we are here to face.

Thanks for listening. I'll see you next time.

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