In the case you describe, the “HSC content” is just that Jesus is magic. So there’s no argument being offered at all. Now, if they offer an actual argument, from some other p to the conclusion that Jesus is magic, then we can assess this argument like any other. How the arguer came to believe the original premise p is not particularly relevant. What you call the “defeater critique”, I call the genetic fallacy.
It’s true that an interlocutor is never going to be particularly moved by an argument that starts from premises he doesn’t accept. Such is life.
The more interesting question is whether the arguer herself should be led to abandon her intuited judgments. But unless you offer some positive evidence for an alternative rational credence to place in p, it’s not clear that a “debunking” explanation of her current level of credence should, by itself, make any difference.
Think of intuitied judgments as priors. Someone might say, “There’s no special reason to think that your priors are well-calibrated.” And that may be true, but it doesn’t change what our priors are. We can’t start from anywhere but where we start.
What you call the “defeater critique”, I call the genetic fallacy.
Thinking of things in terms of informal fallacies like the genetic fallacy throws away information. From a Bayesian viewpoint, the source of one’s belief is relevant to its likelihood of being true.
The more interesting question is whether the arguer herself should be led to abandon her intuited judgments. But unless you offer some positive evidence for an alternative rational credence to place in p, it’s not clear that a “debunking” explanation of her current level of credence should, by itself, make any difference.
Right; I mostly complain about arguments made solely from intuited contents when the claims are given with far more confidence than can be justified by the demonstrated reliability of human intuitions in that domain.
In the case you describe, the “HSC content” is just that Jesus is magic. So there’s no argument being offered at all. Now, if they offer an actual argument, from some other p to the conclusion that Jesus is magic, then we can assess this argument like any other. How the arguer came to believe the original premise p is not particularly relevant. What you call the “defeater critique”, I call the genetic fallacy.
It’s true that an interlocutor is never going to be particularly moved by an argument that starts from premises he doesn’t accept. Such is life.
The more interesting question is whether the arguer herself should be led to abandon her intuited judgments. But unless you offer some positive evidence for an alternative rational credence to place in p, it’s not clear that a “debunking” explanation of her current level of credence should, by itself, make any difference.
Think of intuitied judgments as priors. Someone might say, “There’s no special reason to think that your priors are well-calibrated.” And that may be true, but it doesn’t change what our priors are. We can’t start from anywhere but where we start.
Thinking of things in terms of informal fallacies like the genetic fallacy throws away information. From a Bayesian viewpoint, the source of one’s belief is relevant to its likelihood of being true.
(Edit 9/2/13: A good example of this is here.)
Right; I mostly complain about arguments made solely from intuited contents when the claims are given with far more confidence than can be justified by the demonstrated reliability of human intuitions in that domain.