Three possibilities come to mind:
Is there an evolutionary purpose?
Does it arise as a consequence of our mental activities, a sort of side effect of our thinking?
Is it given a priori (something we have to think in order to think at all)?
EDIT: Thanks for all the responses! Just one thing I saw come up a few times I’d like to address: a lot of people are asking ‘Why assume this?’ The answer is: it’s purely rhetorical! That said, I’m happy with a well thought-out ‘I dispute the premiss’ answer.
Confabulation.
Look at split-brain patients: divide the corpus callosum down the middle, and you effectively have two separate brains that don’t communicate. Tell the half without the speech centre to perform some random task, then ask the other one why they did that - and they will flat-out make up some plausible sounding reason.
And the thing is, they haven’t the slightest idea that it isn’t true. To them, it feels exactly like freely choosing to do it, for those made up reasons.
Bits of our brains make us do stuff for their own reasons, and we just make shit up to explain it after the fact. We invent the memory of choosing, about a quarter of a second after we’ve primed our muscles to carry out the choice.
I think a chunk of this comes down to our need to model the thoughts of others (incredibly useful for social animals) - we make everyone out to be these monolithic executive units so that we can predict their actions, and we make ourselves out to be the same so we can slot ourselves into that same reasoning.
Also it would be a bit fucking terrifying to just constantly get surprised by your own actions, blown around like a leaf on the wind without a clue what’s going on, so I think another chunk of it is just larping this “I” person who has a coherent narrative behind it all, to protect your own sanity.
There was a relevant post on Lemmy the other day:
The origin and nature of existence is an epistemological black hole that some people like to plug with “a wizard god did it”.
The sensation of free will is an emergent property of a lack of awareness of the big stuff, the small stuff, the long stuff, and the short stuff.
I like to look at the illusion of free will as if you’re falling down a pit. You can try to flap your arms or swim, and maybe move yourself a little bit, but at the end, you’re still falling down.
Warning, I came up with this while very high one time, lol, but it’s kind of stuck with me:
Consciousness is a 4-dimensional construct living in a 3-dimensional world. What we experience as the passage of time is just our consciousness traveling/falling along the surface of the 4-dimensional plane/shape that defines our existence.
Feel free to poke all the holes you want in that. lol
There is an old Taoist story about two people floating down a river. One has already decided where he wants the river to take him and is constantly swimming against the current to try to get there, the other just floats along taking in the sights.
They both end up wherever the river takes them, and they both went through the same obstacles and rapids, but when asked how the trip was, one of them is complaining about the whole trip being frustrating and exhausting, while the other had a pleasant time and tells you all about the amazing things they saw on the way.
Couldn’t it also be argued that our lack of awareness of the big stuff also leaves open the possibility of free will?
On a sufficiently large billiards table, it does become hard to prove that some balls don’t spontaneously sink themselves.
Here’s my take: the answer is emergent phenomena. We live in a very complex system and in complex systems there are interactions that can only be predicted using systems of equal or higher complexity. So even in case everything is predetermined, it would still be unpredictable and therefore your decisions are basically still up to you and the complex interactions in your brain.
I think this is probably it. I think this argument is strongly related to the idea of consciousness as an emergent property of sensory experience. I find it simple to imagine the idea of a body with no will or no consciousness (i.e., a philosophical zombie). But I find it very difficult, almost impossible, in fact, to imagine a consciousness with no will, even if it’s only the will to think a given thought.
Do we have free will to think a given thought? All of my thoughts just suddenly appear in my mind or are connected to previous thoughts that suddenly appeared in my mind.
I mean, if I said to you, ‘Calculate 13x16’ (or some other sum you don’t know off the top of your head) you could either do it or not do it. That would be a willed choice, whether or not you knew the answer.
actually this is the definition that first came up on a search
“the power of acting without the constraint of necessity or fate; the ability to act at one’s own discretion”
so yeah we do have free will. the rest is philosophical masturbation
You can also find the definition of magic or telekinesis, but that doesn’t mean we have them, and not all philosophical question are just “masturbation”. It is an interesting question. It is worth taking free will at least axiomatically as our perception of that freedom even if it is truly deterministic.
If you throw a pair of dice, do they still have to roll if their final positions are predetermined from the point that you let go?
One view is that even a deterministic mind still must execute. An illusion of the capacity to choose between multiple options might be necessary to considering those options which leads to the unavoidable conclusion.
A better question is, is there any difference between the illusion of free will and actual free will. Is there some experiment you could conduct to tell the difference?
If it’s the illusion of free will then whoever constructed it most likely made sure we wouldn’t have access to those kinds of experiments, or we wouldn’t think of or choose to do them.
