These guys aren't kidding! So after much effort by the conference chair - who said it was too late to invite our Ayurvedic presenter, Darshan Shankar (who turns out not to be a Ph.D. or any other type of scientist, no surprise) - we think that the chair has convinced Shankar to give a more reasonable presentation, though it still mentions Ayurveda. I hope it works, but if not I'm going to have to get up at the end and say something to make it clear I don't believe it.
This is interesting because I've never been in a position like this before. I thought about simply refusing to speak, but the conference chair put in many hours basically re-doing Shankar's slides for him, so I feel like I have to go. But we don't know if Shankar will stick to the re-written script. I'll post a followup after the conference.