Marvin Edwards
Veteran Member
The compatibilist proposition is simply that free will is a meaningful concept within a deterministic world.
The proof is this:
P1: A freely chosen will is when someone chooses for themselves what they will do, while free of coercion and other forms of undue influence.
P2: A world is deterministic if every event is reliably caused by prior events.
P3: A freely chosen will is reliably caused by the person's own goals, reasons, or interests (with their prior causes).
P4: An unfree choice is reliably caused by coercion or undue influence (with their prior causes).
C: Therefore, the notion of a freely chosen will (and its opposite) is still meaningful within a fully deterministic world.
P1: A freely chosen will is when someone chooses for themselves what they will do, while free of coercion and other forms of undue influence.
But what happens in the restaurant is chosen. We have a menu of dinners to choose from, and the chef is capable of preparing any one of them for us. So, each dinner on the menu is a real possibility. The only thing standing between us and dinner is that we must make a choice. No choosing, no dining.
P2: A world is deterministic if every event is reliably caused by prior events.
Nope. Determinism, by definition, means that every event is reliably caused by prior events. And, nothing more than that. If you wish to argue that it eliminates possibilities, you must explain why "every event being reliably caused by prior events" eliminates possibilities.
The inevitable progression of events happens to include the restaurant, its menu, and us having to choose what we will have for dinner.
Quite the opposite. If it is the case that I order the lobster of my own free will, then that would be causally necessary. If it is the case that one of my dinner companions runs out of patience, pulls out a gun, and shouts, "Order the steak, right now, or I'll put a bullet in you!", then that would be causally necessary. There is nothing about determinism that would make either of those events "illusions". Determinism would simply make them causally necessary.
Exactly. That actually happens in the empirical world. The brain calculating the choice is called "choosing". When it is my own brain doing the calculating then it is called a freely chosen will. When it is someone else's brain doing the calculating and forcing me to accept his choice, then my dinner is not freely chosen by me.
Sit at the table. Look at the menu. If you do not see alternate choices then you may be having some kind of illusion.
Determinism guarantees that the menu will have a list of alternate possibilities for you to choose from. Your choice will be causally necessary from any prior point in time, but it will also be causally necessary from any prior point in time that you will be doing the choosing.
The menu is not a guy with a gun. The influence of the menu is not an undue influence. Menus are ordinary influences, with lots of suggestions that we can accept or decline as we choose.
If the menu were an undue influence then we would order all of the items on the menu, one of each. But we don't.
Yes. Choosing is a deterministic operation, so our choice will be reliably caused by the things that are most important or desirable to us. And when it is our own thoughts and feelings that cause our choice, then we are considered to be free to choose for ourselves what we will have for dinner.
But if it is our impatient diner with the gun who forces us to choose something we may not want, then it is not our freely chosen will, but his.
In either case determinism holds. In either case the distinction between a free and an unfree choice holds. So, determinism and free will are compatible.
Free will is not a "feeling"! Either I made the choice myself or the guy with the gun made the choice for me. This is a matter of facts, not feelings.
No. It doesn't. We assume that the mechanics of cognition are constant among all normal brains, and that they may be altered in brains affected by significant mental illness or brain injury.
Kane's assertion demonstrates why determinism can never make us do something against our will. So, determinism is not a threat to free will.
A possibility is something that may or may not happen. The fact that it does not happen does not imply that it could not have happened.
The notions of "possibility" and "probability" allow us to deal with matters of uncertainty in a logical way. We do not know with certainty what "will" happen, but we do know with certainty what "can" happen. One of the horses "will" win the race. Any of the horses "can" win the race. But it is impossible for any horse that is not in the race to win it.
Then are you challenging P2: A world is deterministic if every event is reliably caused by prior events? Or do you view P2 as I do, as a more concise and accurate statement of determinism, without the imaginary causal agents.
The imaginary causal agents in the SEP definition include determinism itself, pictured as a governor of events, and natural law, pictured as a fixer of events. They are imaginary because neither is an actual object or an actual force. They wield no powers. All of the causation is found in the behavior of the actual objects and forces that make up the physical universe. And we happen to be one of those objects that can exert force upon other objects (e.g., cutting down trees to build a house).
In conclusion, there is nothing about determinism that contradicts free will, and, there is nothing about free will that contradicts determinism. (1) The fact that our choices are causally necessary does not contradict the fact that they are our own choices. Neuroscience confirms this by demonstrating that it is our own brain that is doing the choosing. Within this deterministic universe we must still make the distinction between choices that we make for ourselves versus choices imposed upon us against our will. (2) The fact that we make a choice for ourselves, of our own free will, does not contradict the fact that our decision is reliably caused by us, and that we ourselves are the reliable result of prior causes.
The proof is this:
P1: A freely chosen will is when someone chooses for themselves what they will do, while free of coercion and other forms of undue influence.
P2: A world is deterministic if every event is reliably caused by prior events.
P3: A freely chosen will is reliably caused by the person's own goals, reasons, or interests (with their prior causes).
P4: An unfree choice is reliably caused by coercion or undue influence (with their prior causes).
C: Therefore, the notion of a freely chosen will (and its opposite) is still meaningful within a fully deterministic world.
P1: A freely chosen will is when someone chooses for themselves what they will do, while free of coercion and other forms of undue influence.
What happens on a cellular level is not chosen. Cells process information and once readiness potential is achieved information, conscious experience is generated.
But what happens in the restaurant is chosen. We have a menu of dinners to choose from, and the chef is capable of preparing any one of them for us. So, each dinner on the menu is a real possibility. The only thing standing between us and dinner is that we must make a choice. No choosing, no dining.
P2: A world is deterministic if every event is reliably caused by prior events.
Determinism by definition doesn't allow multiple possibilities.
Nope. Determinism, by definition, means that every event is reliably caused by prior events. And, nothing more than that. If you wish to argue that it eliminates possibilities, you must explain why "every event being reliably caused by prior events" eliminates possibilities.
The inevitable progression of events happens to include the restaurant, its menu, and us having to choose what we will have for dinner.
Given determinism, your freedom of choice is an illusion.
Quite the opposite. If it is the case that I order the lobster of my own free will, then that would be causally necessary. If it is the case that one of my dinner companions runs out of patience, pulls out a gun, and shouts, "Order the steak, right now, or I'll put a bullet in you!", then that would be causally necessary. There is nothing about determinism that would make either of those events "illusions". Determinism would simply make them causally necessary.
You see a list of foods on the menu, your brain calculates the pros and cons of each item, one is realized.
Exactly. That actually happens in the empirical world. The brain calculating the choice is called "choosing". When it is my own brain doing the calculating then it is called a freely chosen will. When it is someone else's brain doing the calculating and forcing me to accept his choice, then my dinner is not freely chosen by me.
There was never a possibility of an alternate choice.
Sit at the table. Look at the menu. If you do not see alternate choices then you may be having some kind of illusion.
Choice implies the possibility of an alternate action, which a deterministic system does not allow.
Determinism guarantees that the menu will have a list of alternate possibilities for you to choose from. Your choice will be causally necessary from any prior point in time, but it will also be causally necessary from any prior point in time that you will be doing the choosing.
Changes of mind are not a matter of free will, but the result of fresh information acting upon the system.
The menu is not a guy with a gun. The influence of the menu is not an undue influence. Menus are ordinary influences, with lots of suggestions that we can accept or decline as we choose.
If the menu were an undue influence then we would order all of the items on the menu, one of each. But we don't.
Not only must you make a choice, but the choice you make is a necessitated choice.
Yes. Choosing is a deterministic operation, so our choice will be reliably caused by the things that are most important or desirable to us. And when it is our own thoughts and feelings that cause our choice, then we are considered to be free to choose for ourselves what we will have for dinner.
But if it is our impatient diner with the gun who forces us to choose something we may not want, then it is not our freely chosen will, but his.
In either case determinism holds. In either case the distinction between a free and an unfree choice holds. So, determinism and free will are compatible.
Which is not really a free choice. Not being aware of the underlying production of your experience, you feel that you have chosen freely.
Free will is not a "feeling"! Either I made the choice myself or the guy with the gun made the choice for me. This is a matter of facts, not feelings.
It essentially comes down to the nature of cognition ...
No. It doesn't. We assume that the mechanics of cognition are constant among all normal brains, and that they may be altered in brains affected by significant mental illness or brain injury.
“It might be true that you would have done otherwise if you had wanted, though it is determined that you did not, in fact, want otherwise.” - Robert Kane
Kane's assertion demonstrates why determinism can never make us do something against our will. So, determinism is not a threat to free will.
If it was possible for the horse that did not win, to win, we are not talking about determinism. You may be thinking of quantum probability.
A possibility is something that may or may not happen. The fact that it does not happen does not imply that it could not have happened.
The notions of "possibility" and "probability" allow us to deal with matters of uncertainty in a logical way. We do not know with certainty what "will" happen, but we do know with certainty what "can" happen. One of the horses "will" win the race. Any of the horses "can" win the race. But it is impossible for any horse that is not in the race to win it.
... I just work with the given definition of determinism. Nothing more, nothing less.
Determinism: The world is governed by (or is under the sway of) determinism if and only if, given a specified way things are at a time t, the way things go thereafter is fixed as a matter of natural law.
Then are you challenging P2: A world is deterministic if every event is reliably caused by prior events? Or do you view P2 as I do, as a more concise and accurate statement of determinism, without the imaginary causal agents.
The imaginary causal agents in the SEP definition include determinism itself, pictured as a governor of events, and natural law, pictured as a fixer of events. They are imaginary because neither is an actual object or an actual force. They wield no powers. All of the causation is found in the behavior of the actual objects and forces that make up the physical universe. And we happen to be one of those objects that can exert force upon other objects (e.g., cutting down trees to build a house).
In conclusion, there is nothing about determinism that contradicts free will, and, there is nothing about free will that contradicts determinism. (1) The fact that our choices are causally necessary does not contradict the fact that they are our own choices. Neuroscience confirms this by demonstrating that it is our own brain that is doing the choosing. Within this deterministic universe we must still make the distinction between choices that we make for ourselves versus choices imposed upon us against our will. (2) The fact that we make a choice for ourselves, of our own free will, does not contradict the fact that our decision is reliably caused by us, and that we ourselves are the reliable result of prior causes.