Free will is not an oxymoron. It simply describes the human ability to make a conscious choice which is not pre determined by previous events.
We know that previous events shape our character, that the person we are at the point we make a decision is, at the very least, influenced by our prior experiences.
There is some limited evidence that we inherit personality 'traits', underlying tendencies that shape how we fold experiences into our character.
That's what our character is formed from, according to the evidence: that's deterministic, that's what we inherit. That character is then applied to the situation - which is beyond our immediate control to change - and a resultant conclusion occurs. That's will, and it's not free.
If you were to posit something in there that wasn't determined by prior events, wasn't dependent upon our inherited traits, wasn't a function of that algorithm processing the available data, that would be random, and whilst it might be free how could it be considered will?
You've still not, at least that I've seen, addressed that contradiction.
If you believe in the human soul, as most people still do, you can accept the ability of the soul to initiate an act of free will.
Firstly, why would I accept one unevidenced notion to support another? Secondly, even if you could demonstrate a soul, it's either something you inherit already shaped or it's something that you shape through life - it's input is either random or deterministic, and you still can't escape the understanding that it's either will or it's free, but it can't be both.
Of course if you believe that the human body is entirely driven be deterministic events then you have to conclude that free will does not exist.
That's certainly how it seems to me. Of course, if you believe there's something else... why? For what reason do you think there's a soul?
My own ability to make conscious choices is sufficient evidence for me to believe that I have a soul, which also gives me conscious awareness of my brain activity.
Except that it's demonstrable that at least some of the 'conscious choices' you make are, in fact, not conscious at all, and by the time you're consciously aware of the choice it's already been made. Even if some of them aren't made subconsciously, that's still not a demonstration that will can ever be free. And finally, even consciousness doesn't mandate a soul.
Our current scientific knowledge is not sufficient to define how free will works, but it is also not sufficient to deny that free will exists.
It doesn't need deny that free will exists, you need to make a robust case for free will first, and you've not done so, and neither has anyone else. The conclusions from the available scientific evidence is that consciousness is an emergent property of complex brain activity.
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