pood
Veteran Member
- Joined
- Oct 25, 2021
- Messages
- 4,532
- Basic Beliefs
- agnostic
Is this it? Does everyone think man’s will is free because of a modal fallacy that would ruin our chances of peace on earth? If anyone here has misgivings or proof that we cannot have free will at the same time we have free will (a complete contradiction), please come forward! I need help! DBT, if it were not for you, I would have given up with this thread entirely.
With this exception, I’ve skipped reading the latest posts from DBT and peacegirl, because this is all so tiresome. I’m commenting on this post, because it is just so … peacegirl.
I’ve engaged with her before on her author’s book on another forum, in a thread that has continued, off and on, for thirteen years. Contrary to her claim earlier in this thread, I did not invite her to this forum; I merely suggested she might consider this venue to make her argument.
Now that she is whining about losing her audience, I merely note that I TOLD her this would happen — or, that she would draw a chorus of ridicule — IF she posted in her usual fashion, which is to post up huge walls of copypasta from the book, without ever attempting to summarize the argument in her own words. Did she take my advice? No, she did not. Did she lose her audience? Yes, she did. And who is to blame for that? Oh, wait — me?? Hey, peacegirl, remember my advice? And remember how according to the author, you’re not supposed to fob off the blame for your acts on anyone else? In fact, according to him, it should be impossible for you to do that — yet here you are, doing it.
Now, a word about “impossible.” I have shown DBT that his argument to hard determinism contains a glaring modal fallacy, and always has. No one needs to take my word for it — there are reams of material on the modal fallacy online, including the modal fallacy. The argument to hard determinism is:
Given antecedents x, y, and z, John MUST NECESSARILY pick Coke over Pepsi.
But this is wrong, and upthread I showed exactly WHY it is wrong. The corrected argument is:
NECESSARILY (given x, y, and z, John WILL [but not MUST] pick Coke over Pepsi.)
But the corrected argument is just … soft determinism.
Because the crux of the dispute between the hard determinist and the soft determinist is just this: the soft determinist does not deny that John will pick Coke given antecedents x, y, and z; the soft determinist simply denies that John MUST do that.
Now if the hard determinist concedes the point that he has made a modal fallacy — and he will, if he is committed to logic and not just to posturing — does he have a fallback position?
Why, yes he does.
He can argue that given x, y, and z, it is physically (though not logically) impossible for John to choose Pepsi.
And, indeed, there are plenty of things that are physically (though not logically) impossible for anyone to do. It is physically impossible for me to flap my arms and fly. It is physically impossible for me to lift a Mack truck with my bare hands. It is physically impossible for me to teleport myself to the moon. The list goes on and on. None of these things are logically impossible, but they are physically impossible.
So the hard determinist can argue, “Look, granted it’s logically possible for John to choose Pepsi, but it is physically impossible.”
And why is that?
“Because of hard determinism,” the hard determinist perkily responds.
Huh.
Well let’s test that in the real world. Right now I’m at a bodega that carries Coke and Pepsi. Remember, I prefer Coke and always choose it, on those rare occasions when I drink a soda. But first, I’m going try to flap my arms and fly. Nope, can’t do it. Next, I’m going to go out into the street and lift a Mack truck with my bare hands. Nope, can’t do it. Next, I’m going to try and teleport myself to the moon. Nope, can’t do it.
Finally, I’m going to try to pick Pepsi over Coke.
Hey, look — I did it!
Now, I know, I know, the hard determinist will now argue that I HAD TO choose Pepsi in this particular context, because it was physically impossible for me to pick Coke. And why is that? Because of … wait for it … hard determinism!
So where the hard determinist argument to logical necessity is disproved modally, the hard determinist argument to physical impossibility is totally circular and empirically disproved. When I picked Pepsi, I demonstrated that doing so is neither logically nor physically impossible, and the hard determinist has no leg left to stand on. Q.E.D.