Today we celebrate the collapse of a stupid idea: Paul Nelson’s “ontogenetic depth”, which was supposed to be a concrete metric that would disprove evolution. Nelson was so confident that he had a solid angle on questioning evolution that he presented it on a poster at the Society for Developmental Biology meetings in 2004 — a poster that was so empty of substance that I asked him for his protocols, and he then waffled for years before finally admitting he had nothin’ in 2010.
Ontogenetic Depth (OD) 1.0 was — well, it would be beyond charitable to say utterly inadequate. I realized this not long after reading PZ Myers’ first wave of criticisms. As I’ll explain, however, my realization stemmed not from Myers’ specific points (most of which were either minor quibbles, or missed the mark completely), but rather from trying to apply OD 1.0 myself to the well-studied models systems of developmental biology. The OD 1.0 "metric" was no metric — measuring stick — at all. Thus, PZ’s general judgment in 2004, if not his specific criticisms, was dead accurate: "This is a poorly expressed and unusable idea."
You will notice that even while confessing that his idea was useless, he’s setting up nitpicks, and claiming that that was Ontogenetic Depth 1.0, which sucked, but wait until you see Ontogenetic Depth 2.0!
This is the 11th year of waiting for Paul Nelson to come up with that explanation of Ontogenetic Depth, either version 1.0 or 2.0 (who knows? Maybe he’s added new version numbers to his creationist vaporware!). At least we got a kind of half-assed, hand-wavey, somewhat dishonest retraction from him, which is about the best we can expect from creationists.