What I conclude from this exercise is that there is not yet a reliable test for determining the presence of intelligent design. That being the case (at least at this stage of our knowledge) it seems that ID "theory" is not yet a theory, because it can't be reliably tested. Thus, ID remains conjecture, and those who claim that it's a valid alternative to evolution are a wee bit premature. At this stage, evolution stands alone, as the only scientific theory that accounts for the diversity of life on earth. (As always, if new information is discovered, this conclusion may change.)