The air of secrecy that surrounds these therapies—discovered through a personal network of would-be pioneers that Rogan’s status has allowed him to build—is also seen in the conspiracy theories he has embraced in the past. Moon hoaxes and Roswell aliens were frequent fodder in the early days of his podcast. One of his favourite guests is Graham Hancock, with seven appearances on the show, who wrote one of Rogan’s favourite books, Fingerprints of the Gods. In it, Hancock theorizes that an advanced civilization forgotten by historians existed in our distant past and was nearly wiped out, with survivors bringing their arcane knowledge to Egypt and the Americas. This kind of pseudoarchaeological hypothesis pushes all the right buttons: it’s revolutionary knowledge heretofore hidden from view and uncovered by a Galileo figure. This is heroin for the adolescent mind.

With COVID, Rogan’s habit for embracing pseudoscience and the rugged individualism that often puts him at odds with public health landed him in hot water with the media. COVID is no worse than the flu, he’d say. Ivermectin is a perfect storm against COVID: “extremely effective, extremely cheap, and generic.” And, infamously, if you’re a healthy 21-year-old, you don’t need to get the COVID vaccine. When confronted, Rogan simply says, “I’m not a doctor, I’m a f—ing moron.” But he’s a moron with influence.

A survey commissioned by The Washington Post revealed that Rogan’s listeners were significantly less likely to intend to vaccinate than those who do not regularly listen, with an 18% lower intent in February 2021. It would be foolish to infer that Rogan single-handedly swayed these people: many are drawn to him because of his libertarian tendencies and his suspicion of public health recommendations. But given the magnitude of his audience and its young average age, it would be equally foolish to pretend Rogan’s misinformed opinions have no effect. When quarterback Aaron Rodgers caught the disease, he took a cocktail of remedies, including ivermectin. Whose advice was he following? Joe Rogan’s.