Yazata
Valued Senior Member
The ID reasoning is "Everything has a source, except God."
That's not exactly true. The letters "ID" refer to "intelligent design", the contemporary reincarnation of the traditional design argument. Your "everything has a source (except God)" assertion seems to refer more to the assorted variants of the first-cause argument. They are very similar kinds of traditional cosmological theological arguments, but not the same one.
The ID reasoning is not "Everything has a source."
The "ID" reasoning is that simply prima-facie, some sorts of being in the universe are examples of intelligent design (or can only be explained by intelligent design, or something). Paley's paradigmatic example was a watch, which he felt clearly implied the existence of a watch-maker. Then the problem is to specify what kind of characteristics are (supposedly) evidence of intelligent design. That's an easy question when we are talking about objects that we already know are artifacts, but the answer isn't nearly as obvious when we are talking about unfamiliar objects whose origin is unknown.
Usually this question isn't even addressed by "ID" proponents. It's just treated as if it was somehow obvious. When it is addressed, the proposed indicator of intelligent design is often taken to be functional form, form that seemingly exists to fulfill a purpose, form that lends itself to functional explanations. Hence an "ID" argument would say that an animal's heart exists to pump blood, animal hearts obviously don't have a human designer, so they must have a hidden non-human designer who must possess amazing powers.
In the 18'th century even skeptics thought that argument was pretty much unanswerable, which is why Deism was so widespread among intellectuals at that time. Darwin changed all that by proposing a very plausible naturalistic explanation for the origins of functional biological form.
The ID reasoning is not "Everything has a source."
The assertion seems to be that all examples of functional form require an explanation. And it's also assumed that the explanation will have to proceed by analogy with familiar human crafts, and that our hypothetical explanations will have to take the form of hidden super-powered craftsman.
The problem for "ID" is that monotheistic religion's "God" seemingly displays functional form as well. "God" is often portrayed as a "person", with a human-style psychology. Even less personalized "Gods" are said to be the epitomy of order and reason itself, what Greeks called the "Logos".
So functional form either points beyond itself towards an external designer, or else it doesn't. If it doesn't, then the existence of "God-as-designer" seems to be an unnecessary leap. If functional form does have to have a designer, and if "God" is imagined as the ultimate source and origin of both function and form, then consistency would suggest that "God" must not be ultimate after all, and must have "his" own hidden designer. And we are off on Dinosaur's infinite regress.