"It has a sort of cripple-effect on questions of design that encompass the entire frame of reference."
DT, I applaud you. I am amazed. I really am. For as much as I have to fight for things on this board you are like a breath of fresh air. Wow. The difference.
Yes, it does. It does cripple it. As such it violates my golden rule on epistemology which, restated here, "Any argument that cripples our very methods of knowing must be rejected on sight." If a method undermines our very ability to know something, the conclusion, whatever it is, cannot be accepted, because we undermined our ability to know it en route. Its like sawwing off the limb you're standing on.
The problem is that a great many 'entire frame of reference questions' risk the same sort of thing. There is a way out, but it is anathema to some.
"Hence my 50% probability, like I said."
I think I was thrown off, because given the above, actually no probability number could be assigned.
"Then enlighten me."
Well, I just said I only have a superficial knowledge! My point, I think, is that unless you've gone to the trouble of reading them in their own words, you ought to be careful. On the same principle, this is why I've only ever attacked evolution via a study of the matter in the words of evolutionists.
"What, other than complexity, constitutes a sign of design? It's always the bloody complexity people invoke when I talk to them, anyways."
'Specification' is, I believe, an important modifier. 'Order' would be a 'sign' of design. In the case of 'order' and 'complexity,' it is already completely understood among the IDers that these things can be mimiced in nature. Further, IDers don't simply say 'such and such' is a 'sign of design.' They say 'on account of such and such and such and such,' the best explanation and interpretation is that it was designed.'
"Maybe so, but that don't help folks like me, do it?"
Just like you're trying to point out that design can be distinguished 'at a certain level' its helpful to also make distinctions about 'levels' in types of rationality. For example, you are well aware of the fact that IDers and Creationists and even Christians in general are all different categories. Naturally, Christians and Creationists find ID compatible with their views. But Christians are not Christians simply because life appears to be designed, or because anything appears to be designed. Ultimately, Christianity rests on whether or not Jesus really rose from the dead.
Can you arrive at Christian theism from design alone? The educated Christians I know would never make the attempt. On that 'level,' to use your word, the argument is just simply too limited. However, on the 'level' of one seeking confirmation and corroboration, the argument is not only fine, but completely rational. This is why I cited Flew. Atheists refuse to allow the argument to have force at any level.
In my 'cumulative argument' thread I have reached a point where I have discussed the ramifications of an 'all encompassing frame of reference.' You should take a look. Bdean and Maj echoe my conclusion in their own way in Cogito's POE thread. Its not as though we Christians don't know about these limitations. In fact, quite the opposite, our worldview is relying on the reality of these problems and presenting one of the few points of view that take this problem seriously and don't violate my golden rule of epistemology.
"If there really is a hidden assumption here, methinks it's best exposed as soon as possible."
The hidden assumption is that 'by default' every matter of inquiry should proceed along 'methodological naturalism,' which they usually mean for practical purposes 'philosophical naturalism.'
In other words, they think its perfectly reasonable to start with the default position that everything is undesigned. It requires no defense as a 'positive' point of departure, because, in their view, it is not a positive claim, but merely a default claim.
Thus, even though 'design' and 'undesign' are mutually contradictory mirrored concepts, in their mind 'design' is a positive statement and requires defense but 'undesign' is a default statement.
This is a massive assumption.
It is especially fallacious when one is coming onto the question completely fresh. Its better to take a more common example, 'miracles.' Let's say the question is, "Did miracles ever happen?" That's what you are trying to find out. You only have two options, 'yes' and 'no.' The skeptic insists that 'yes' is a positive claim and thus requires they say 'the burden of proof' (Christians scoff at the standard of 'proof'). But then they turn around and insist that 'no' is not a positive claim, its the default claim.
So, the upshot is that they begin their inquiry as to whether or not miracles happen by assuming in advance that miracles do not happen. Clearly, if one were going to be rational, one would start with a position of agnostic nuetrality, and then try to determine what the best method of inquiry would be to address the particular type of question being raised, apply that method, and stand by the results.
So, when they turn to the argument above, they 'escape' it by presuming in advance that the rational methodology is to start with 'undesigned.' Guilty until proven guilty, if you will.