OK, so it's actually the hypothesis of ID.
I still can't think of any observation that would contradict it.
In fact, I don't think it's possible in principle. Unless there are some limits placed on the hypothetical designer's abilities, anything is possible.
If ID is ever to replace standard biology, it will have to account for all the facts that existing theory does. I just don't see how anyone can say with a straight face that the hypothetical designer made sure that every mutation common to both whales and cows is also found in hippos; or every one common to cats and dogs is also found in bears; or every one common to chimps and gorillas is also found in people....
Well, I guess it could have designed them that way, but ID cannot make another prediction like the ones I just listed, whereas standard biology can, and has, and has been right every time so far.
I say we have Chapter 1 the science book state that there's two theories of how life began. Both have pros and cons. Chapter 2 and beyond simply deal with facts w/out arguing for either origin, which is possible, See post 35 for example.