Choice means realizable options. Determinism doesn't allow options, only what is determined. Within a determined system, choice is an illusion.
I can show you people walking into a restaurant and browsing through an actual menu of realizable options. If you wish to test whether any of those options are realizable, just sit down and place an order. When the waiter brings you the meal, are you having an illusion? Or do you pick up your fork and start eating?
With a little thought, we can also demonstrate that all of these events were reliably caused. My invitation caused you to walk into the restaurant. Your desire to see whether the items on the menu were truly "realizable options" caused you to order the cheese burger, and then the salad, and then the apple pie. You only stopped because the waiter brought you the bill, holding you responsible for your orders, and you ran out of cash.
So, we have choosing actually happening, right in front of us. And, we have reliable causation actually happening, also right in front of us.
Since we found none of the illusions that you claimed exist, we must conclude that your assertion is the only real illusion here.
Determinism does not make choosing an illusion. Determinism makes choosing inevitable.
The action taken is the only action possible.
Would you like to test that by ordering a few more items from the menu? Feel free to take any action that you can afford to pay for. As you can clearly see, there are many possible actions. Not just the action taken, but also all the other actions that you could have taken, but didn't.
The very definition of freedom demands realizable alternatives.
And there they were, on the menu, right in front of both of us, where we could clearly see them. If you did not see them, then it would seem that you are the one having an illusion.
1
: the quality or state of being free: such as
a
: the absence of necessity, coercion, or constraint in choice or action.
One thing we do not see in that list is "causation". There is no such thing as freedom from causation. We see "necessity", as in "You must stop at the red light", but we do not see freedom defined as the absence of "causal necessity". Causal necessity is the same thing as causation. There is no freedom from causation because every freedom we have involves the ability to cause something to happen. No causation, no freedom.
What the brain does is necessitated by the information that acts upon its systems and the actions it produces.
Information does not act upon anything. Causation never causes anything. Determinism never determines anything. None of these are causal agents with an interest, one way or another, in any outcomes.
We, on the other hand, have an interest in the outcomes of our actions. So, we choose what we will do.
Behavioral response:
''To successfully interact with objects in the environment, sensory evidence must be continuously acquired, interpreted, and used to guide appropriate motor responses. For example, when driving, a red light should motivate a motor command to depress the brake pedal. Single-unit recording studies have established that simple sensorimotor transformations are mediated by the same neurons that ultimately guide the behavioral response. However, it is also possible that these sensorimotor regions are the recipients of a modality-independent decision signal that is computed elsewhere. Here, we used functional magnetic resonance imaging and human observers to show that the time course of activation in a subregion of the right insula is consistent with a role in accumulating sensory evidence independently from the required motor response modality (saccade vs manual). Furthermore, a combination of computational modeling and simulations of the blood oxygenation level-dependent response suggests that this region is not simply recruited by general arousal or by the tonic maintenance of attention during the decision process. Our data thus raise the possibility that a modality-independent representation of sensory evidence may guide activity in effector-specific cortical areas before the initiation of a behavioral response.''
Or, to put it more concisely, we choose what we will do based upon the information we have at hand. But wait, you were saying that this "decision process" is just an illusion, so, are you disagreeing with the scientists?
Brain function;
Recent findings: Voluntary, willed behaviours preferentially implicate specific regions of the frontal cortex in humans. Recent studies have demonstrated constraints on cognition, which manifest as variation in frontal lobe function and emergent behaviour (specifically intrinsic genetic and cognitive limitations, supervening psychological and neurochemical disturbances), and temporal constraints on subjective awareness and reporting. Although healthy persons generally experience themselves as 'free' and the originators of their actions, electroencephalographic data continue to suggest that 'freedom' is exercised before awareness.''
It doesn't really matter to free will whether the choosing happens before, during, or after awareness. The point is that the choosing is happening, and our own brain is doing it. And as long as the brain is operating free of coercion and undue influence, it is still called free will.