Tucker Carlson’s descent into pushing conspiracies hit a scientific new low as the former Fox News host suggested in a new interview that he’s open to the theory that Earth may actually be flat.

Speaking to the Blaze’s Alex Stein (via Meidas Touch), Carlson was asked about the Flat Earth theory. “Well, I’m open to anything,” he replied. “How could I not be open to anything at this point? I mean, there’s been so much deception that you can’t trust your preconceptions.”

After dismissing the notion that history trends toward “enlightenment and technological progress” as “a complete lie,” Carlson added, “The most basic stories we’ve been told about history, about the Earth, the physical Earth itself, which has been completely changed by climate change for millions of years, once you realize all of that, then it’s like, I don’t know, what is true?”

However, Carlson wouldn’t brand himself a Flat Earther only because guns of all things taught him that the world is probably round. “As far as the curvature of the Earth, that’s a thing in shooting,” he said. “I like rifle shooting and past a certain distance you have to take that in account. That suggests it’s real. Because one thing I know that is guns. Guns are real.”

Not surprisingly, this isn’t the first time Carlson has baited Flat Earthers, using their ridiculous cause as an entry point to examine other conspiracies, like the “truth” behind 9/11 and aliens.

“Flat Earth people have been able to cruise beneath the radar for so long — and by the way I’m not discounting that possibility for the record, in case any are here, because I’m an open-minded man,” Carlson once said at a Turning Point Action conference. “Present me the evidence of its flatness, and I will amplify it.”