Could you have done otherwise?
Tell apart the three main answers to the free will puzzle (determinism, libertarian free will and compatibilism), avoid confusing determinism with fatalism, and use the debate when you judge yourself and others.
THE PUZZLE
Determinism
Determinism is the view that every event, including every decision you make, is fixed by earlier causes together with the laws of nature. Your choice comes from your brain, and your brain's state comes from things you never chose. Follow the chain back far enough and it starts before you were born.
Physics may not be fully deterministic; at the smallest scales some events seem to be random. But randomness doesn't obviously help. A choice that happens by chance isn't more yours than one that has causes.
| View | Is determinism true? | Do we have free will? |
|---|---|---|
| Hard determinism | Yes | No, so deep blame makes no sense |
| Libertarian free will | Not for our choices | Yes, we can start new causal chains |
| Compatibilism | Maybe, it doesn't matter | Yes, if we act on our own reasons, uncoerced |
| 'Libertarian' here has nothing to do with politics. |
Check yourself
Which view is each person expressing?
- Babak: 'Given my brain and my past, I couldn't have chosen anything else, so nobody truly deserves blame.'
- Elena: 'When I choose, something in me starts the action that no earlier cause fixed.'
- Kourosh: 'My choices have causes, but they're still free when they come from my own reasons and nobody forces me.'
- Tom: 'Praise and blame are illusions, since everything was settled long ago.'
- Shirin: 'If every choice were caused, we wouldn't be free, and we are free, so not every choice is caused.'
- Arash: 'Free means acting as I want, not acting without causes.'
Show the answer
Hard determinism: Babak: 'Given my brain and my past, I couldn't have chosen anything else, so nobody truly deserves blame.', Tom: 'Praise and blame are illusions, since everything was settled long ago.'
Libertarian free will: Elena: 'When I choose, something in me starts the action that no earlier cause fixed.', Shirin: 'If every choice were caused, we wouldn't be free, and we are free, so not every choice is caused.'
Compatibilism: Kourosh: 'My choices have causes, but they're still free when they come from my own reasons and nobody forces me.', Arash: 'Free means acting as I want, not acting without causes.'
THE MIDDLE PATH
Compatibilism
Thinkers like David Hume (1711–1776) argued that the question was badly posed. Freedom was never about having no causes. It's about the kind of cause: are you acting on your own desires and reasoning, or are you forced, threatened or compelled? Surveys suggest this is the most common view among professional philosophers today.
Ali hands his wallet to a man with a knife. Later he gives money to a charity after thinking it over. Both acts have causes. Only the second came from Ali's own reasons, so only the second is free in the sense that matters for praise and blame.
The Stoics' rolling cylinder
Remember the Stoics from lesson 4. Chrysippus, as Cicero reports, compared us to a cylinder pushed down a slope. The push starts it, but it rolls because of its own shape. Outside events start our actions; our own character shapes how we respond. Where it breaks: a cylinder can't reflect on its shape or work to change it, and people can.
Check yourself
Which of these would a compatibilist say was NOT a free act?
- Hamid quits his job after weeks of weighing it, knowing his upbringing shaped what he values
- Ana orders the same tea she always orders, out of habit
- Tara signs a contract because someone has threatened her family
- Mahsa helps a stranger on a sudden kind impulse
Show the answer
Tara signs a contract because someone has threatened her family
Right. A threat overrides Tara's own reasons. The others all act from their own values, habits or character, which have causes but are still theirs.
Check yourself
Sahar reads that every decision has causes in the brain. She concludes: 'Then there's no point studying for the exam. If I'm going to pass, I'll pass.' A compatibilist would agree with her reasoning.
Show the answer
False
False. Sahar has slid from determinism into fatalism. Even if her choices are caused, studying is one of the causes of passing. Deciding not to study doesn't step outside the chain; it just changes where the chain leads.
Every view pays a price
- Hard determinism clashes with how we all live: we deliberate, keep promises and feel gratitude as if choices were real.
- Libertarian free will struggles to explain control: if a choice has no prior cause, how is it different from chance? It is also hard to fit with brain science.
- Compatibilism is accused of changing the subject: critics say the real question was whether you could have done otherwise in exactly the same situation.
- The debate is open. You can still use it well without settling it.
Check yourself
Leyla's 15-year-old son lied about where he was on Friday night. She has just read about determinism. Which response fits compatibilism best?
- Let it go: his brain made him do it, so he isn't really responsible
- Hold him responsible, and also try to understand what pushed him
- Punish him hard, because only an uncaused choice deserves blame and his wasn't
- Wait until science settles whether free will exists before reacting at all
Show the answer
Hold him responsible, and also try to understand what pushed him
Yes. He acted on his own reasons, uncoerced, so he's responsible. And because choices have causes, understanding them helps Leyla shape better ones: that's where consequences like losing privileges earn their place.
Check yourself
- Ramin takes money from the shop till because he wants a new phone and thinks nobody will notice.
- Ramin takes money from the till in the grip of a gambling addiction he hates and has been fighting for months.
Both acts have causes. Why would a compatibilist judge the second more gently?
- The second has causes behind it and the first one doesn't have any
- A compulsion he rejects overrides his reasoning in the second
- The amount of money taken from the till is different in each case
- Compatibilists never judge anyone, since everything is caused
Show the answer
A compulsion he rejects overrides his reasoning in the second
Yes. What matters is whether the act flows from his own reasoning and values. An addiction he's fighting is closer to force than to choice, which reduces, though may not erase, his responsibility.
Lesson recap
- Determinism: every event, including your choices, follows from earlier causes and the laws of nature.
- Hard determinists deny free will; libertarians deny determinism for our choices; compatibilists say freedom means acting on your own reasons, uncoerced.
- Determinism is not fatalism: your efforts are among the causes of what happens.
- Knowing choices have causes invites understanding without excusing, and tells you to shape the causes of your own future choices.