Orac, over at Respectful Insolence, has a post titled “Debating Denialists” that talks a bit about how pointless it is to debate denialists, whether they be Holocaust deniers, anti-vaxxers, creationists, or 9/11 Truthers. Deborah Lipstadt, a Holocaust historian, uses the phrase “trying to nail a blob of Jello to the wall” when referring to debating …