Quote from: finewine on July 22, 2009, 11:12:29 PM
It's true that we can only perceive the world, and the readings of our scientific instruments, through the subjective interface of our senses. The problem with the strict "brain in a jar" view is that it forces us to abandon any further inquiry into the extrinsic.
I touch on this in my short post about the futility of the brain in a jar argument. As it is unknowable and self-defeating, it cannot add value to the growth of knowledge, so aside from noting it as a metaphysical & philosophical conundrum, it may as well be discarded.
Put simply, so what?
Merging two singularly separate positions, a duality (black, white, material, spiritual, please find others that appeal to you,) is always an fairly impossible position. Certainly if the dualists (or duelists) refuse to find some possibility of a compromise, an agreement to be able to set parameters that allow discussion.
Hmm, more than just a firm divide between two sexes or genders, for instance. The possibility that black and white intersect in some area that's a mix, grey? Or that ... we go on.
You can discard the brain-in-a-jug argument as the brain-in-a-jug arguers can deny the brain-that's-able-to-sense-objectively argument as well. Which would be usual, I think, in both cases.
Leaves you right back where your essay says their notion leaves the matter. "You cannot talk about that because you're not abiding by my rules." "But you're rules aren't my rules." and so on
ad infintitum.
Of course there might be a way provided that, for instance, one group could find it within themselves to agree that as matter gets refined the separation of what we refer to as matter and spirit is that one is just the other more grossly defined (unrefined sugar or iron ore) and the other more subtlely defined (refined and powdered sugar or tungsten steel, etc.) And then the other makes that same agreement.
You're right, as long as either, or both, side/s refuses to recognize the possibility of discussion and finding something they can agree with and accept on the other pole there's no meeting of the positions, anywhere, ever.
There's a great gulf that separates us said Father Abraham to the Rich Man in the parable.
"Oh, well," said the Rich Man in Hell, "so it goes, I don't believe in you either."
People would rather hold a position than talk or meet.
Quote from: FairyGirl on July 22, 2009, 11:25:29 PM
... I'll humbly concede to the multiple answers argument. 
Sister!! twin sisters of different parents.