For Davidson, a born-again Christian, the most logical explanation for the conspiracy of the millennium goes like this: "Let's just say there is an adversary, there is a devil, there is a Satan. His whole job would be to try to convince the world that God doesn't exist. He's done an incredible job convincing people with the idea that we're just on a random speck in an infinite universe."
The reality, says Davidson, is that the flat Earth, sun, moon and stars are contained in a "Truman Show"-like dome. From there, pitfalls can be easily dismissed -- like photos of the Earth from space, which flat Earthers believe are photoshopped. "This all goes away if they put a 24/7 camera feed on the moon," he adds.
And Davidson quickly found a large online community believing the same thing. "I thought doing a conference would just take it to the next stage where the media and the world will look at it and say, 'wait a minute -- something must be going on. This is not just some internet fad, or a bunch of crazy people online. They're now meeting in buildings.'"
He has a few things he wants to make clear to a flat-Earth novice. Firstly, and most importantly -- "none of us believe that we're a flying pancake in space." The community merely believes that space does not exist, the world sits still and the moon landing was faked. The jury is out on gravity -- but as Davidson notes, no one has ever seen it.
Secondly -- no, you won't fall off the edge. While flat Earthers' views of the world vary, most believe the planet is a circular disk with Antarctica acting as an ice wall barrier around the edge.
And thirdly, modern flat Earthers have little in common with the Flat Earth Society, a group that has existed for decades and has more than 200,000 followers on Facebook.
That organization, some speakers told CNN, is a government-controlled body designed to pump out misinformation and make the flat-Earth cause sound far-fetched to curious minds. Davidson calls their theories "completely ridiculous."
The Flat Earth Society has not responded to CNN's request for comment.