It is this worry of falsely ascribing something to design only to have it overturned later that has prevented design from entering science proper.
This worry, though perhaps justified in the past, can no longer be sustained. There does in fact exist a rigorous criterion for discriminating intelligently from unintelligently caused objects. Many special sciences already use this criterion, though in a pretheoretic form (for example, forensic science, artificial intelligence, cryptography, archeology, and the Search for Extraterrestrial Intelligence).
— William Dembski, from Science and Evidence for Design in the Universe, p. 23