I think the appropriate way to celebrate is to do nothing at all, but just to pretend to have a big party.
Paul Nelson Day commemorates the fabulous concept of Ontogenetic Depth, a metric that Paul Nelson invented and presented at the 2004 Society for Developmental Biology meetings — he claimed that it was a measure of the complexity of a developmental process, and that it was a serious problem for evolution. Look, he said, all of a sudden in the Cambrian these creatures appeared with high Ontogenetic Depth values! Only he couldn’t tell us what those values were, or how he measured them. But they sure were a big problem for evolution!
Well, at least he couldn’t tell me right then and there at the meetings how to calculate Ontogenetic Depth. But he’d get right back to me with the details. Tomorrow. Right away. Some day.
Despite having actually had the gall to present this stuff at a legitimate scientific meeting, those details have receded farther and farther away, to the point where he finally admitted in 2011 that ontogenetic depth is impossible to measure. But we can still keep on rubbing his nose in his phony pseudoscience.
As for me, I have a cadre of strippers and a marching band here in my office, have dismantled all of the local churches to get the raw materials for a gigantic bonfire in the parking lot outside, and plan to have a picnic on the moon this afternoon to celebrate. I promise. I’ll post pictures to prove it…tomorrow. Pinky swear!