i hesitate to make broad statements here, but some seem to be suggesting that nobody is arguing that a human decision is free from all previous influences. i think this is a fair statement. the best attempts at explaining free-will seem to suggest that there is some kind of influence-gap. that is to say, it has been suggested that a human decision is influenced up to some unknown point less than 100% and then there is some i-gap of unspecified quantity and free-will lives there spreading magic fairy dust, however small or improbable that i-gap might be. i have never heard anyone propose a way to measure this i-gap in order to perhaps somehow gauge how much free-will someone might have, or to figure out if children have it, and if not, when do they get it? the i-gap sounds to me more like an ignorance-of-influence gap (this would also seem like the compatibilist's opinion). if this is the case we should be able to dial up free-will by dialing up ignorance.
the main problems i see with this proposal are as follows:
1) there is no way to measure the influence-gap. it is in all likelihood merely a knowledge-of-influence-gap or lack-of-precision-gap.
2) even if the influence-gap is considered to be a real thing, wouldn't that gap simply increase the value of the other influences? how could the influence gap possibly be considered an influence? it's a gap that is by definition non-influential.
3) let's consider based on at least a small shred of logic, what could be in that pesky i-gap that might actually be an influence. well, whatever is in that i-gap can't be influenced since it is inside something defined as an influence-gap. so maybe there's an uninfluenced-influence in that i-gap; we could call it something mysterious like, an uncaused-cause, or maybe a first-cause, or better yet ex-nihilo. could that uncaused-cause be influenced or originated by anything at all? no, of course not because it's in the i-gap and it is defined as being uncaused. so could a human take credit for a decision or action that emerged from the i-gap? how could they possibly take credit or be responsible for something they had no conceivable control over? anything emerging from the i-gap would be indistinguishable from a random event. and randomness is incompatible with choice.
4) but what if it's the essence of "me" that is in the i-gap. are you kidding me?! i don't care if it's your grandmother, your dead child, or your ever lovin' god. if you put them in the i-gap they are at-best indistinguishable from random noise and at worst non-existent.
5) what if the gap is not an influence-gap but instead a black box? if the gap is not an influence-gap, there is no place for mr. free-will to spread his magic fairy dust because the gap instantly fills with influence and is then no longer properly described as a gap. additionally if the output of the i-gap is non-random, that is to say it emits some identifiable pattern, then whatever is happening in the i-gap must have some way of knowing what the hell is going on outside of the i-gap and this knowledge is definitely influencing its output thereby introducing influence into the i-gap which would then promptly disappear in a cute little puff of logic.
i think it's important to fully comprehend this influence-gap. imagine, if you will, that i am constructing a human being. when the recipe calls for me to add "a dash of free-will" i can't just add any old thing, willy nilly; i have to first construct a proper influence-gap to protect my human from the evil determinism. this would be some container that is impervious to all conceivable influence. i probably have a sound-proof, shock-proof, opaque, air-tight, empathy-proof, magic-proof, momentum-proof, time-proof capsule of some sort just laying around my house, i'll just set that to the side for now. ok, adding an empty box to the mix isn't going to do anything of course so we have to put something in it. since whatever is in this i-gap is supposed to advise me on important moral decisions my selection is of critical importance. well, the most intelligent and moral person i know of is my friend george, so since i don't seem to have a better option, i throw george in the i-capsule and seal him in tight. now days, weeks, and months have gone by and i've pretty much forgotten about george until one afternoon i am confronted with an intractable dilemma. i am faced with a decision with staggeringly profound moral implications and i must make a decision immediately. what do i do? well this sounds like a case for the magnificent george! so i locate my everything-proof capsule on which i have scrawled the descriptive term "i-gap" with my handy wax pencil, and i ask my question. i exhaustively explain all of the known factors leading up to and logical implications of this monumental decision to george, my moral, spiritual and financial advisor, and then i wait for an answer, any answer at all. nothing happens. things are getting desperate, so i beg george to give me an answer, to point me in the right direction. nothing happens. i light some candles and wave a magic wand over the i-gap, but still i can't divine any response from george. i realize there is a problem with the i-gap's design. so i quickly scour my garage for spare parts and retrofit a one way intercom system onto the i-gap so i can hear what george has to say. mind you he still can't hear anything or in any way perceive anything that i have to say, thus preserving the integrity of the influence-gap, but now he can speak directly to me, thus becoming an uncaused-cause. of course george has causes, he was born and raised and had both happy and sad experiences, but i'll just ignore all that for now. george is pretty much an uncaused-cause now that he is housed in the exclusive and luxurious, new and improved i-gap. so i ask george again to answer my plea for guidance. nothing happens. every once in a while george does actually say something but it's usually along the lines of "let me out of this f#cking box you god#amned muth#rf#cking muth#rf#cker!" heh, that george is such a kidder!
obviously george is constrained by the parameters of his confinement and is therefore incapable of offering any advice that would be requested from him.
the same would be true if you put jesus, or krishna, or a unicorn, or any conceivable entity or event in the modified i-gap.
ipso-facto, no free-will.
