Only skimmed through this thread so bear with me -- been off-site for quite a while and am out of practice
Am I right in thinking that the OP has suggested that ID is the ONLY possibility because there are an infinite number of possible shapes, so random mutation plus selection couldn't possibly have created (for example) a femur shaped bone?
I would have thought that the more possibilites that exist, the easier it would be to hit upon a workable one by random mutation ... and then filter it for 'fit to the environment'.
Especially if you have a multitude of parallel attempts.
Maybe I am missing something though.