It is rather forgettable, so, to recap: in 2004, Paul Nelson presented a poster at the Society for Developmental Biology meetings in which he unveiled his sciencey super-concept,
Ontogenetic Depth. This was, supposedly, a method by which you could measure the developmental complexity of organisms, and he claimed to have been working on doing just that, although his poster was nothing but hand-wavey claims of the concept. I asked him to give me details on the method, that it would be interesting to try on my zebrafish. He said he’d send me a manuscript explaining how to measure it, later. I pestered him a bit for the documentation, and it was always “later”. He finally committed and said he’d post something on 7 April, 2004.
For a while it was because he was prepping a new version, Ontogenetic Depth 2.0, but since we haven’t seen either 1.0 or 2.0, and since “ontogenetic depth” is a phrase which hasn’t even caught on among creationists, I think it’s safe to say it’s dead. It’s yet another bit of rotting detritus in the pointlessly continuous reinvention and relabeling of creationism.
But it’s still useful to poke at them and remind them how useless and bad their version of ‘science’ is. And, apparently, how forgettable.