No matter what Kyrie Irving and B.o.B might try to tell you, the Earth is not flat. Just watch the clip above to see Bill Nye the Science Guy go off on anyone who tries to suggest otherwise.

But despite the mounting evidence against him, Irving still refuses to give up his flat Earth theory. Most recently, Irving was asked for his thoughts on the shape of the Earth shortly after the Celtics touched down in London for a game against the 76ers on Wednesday. Irving and his teammates had just flown across the Atlantic to take part in the game, so NBA TV’s The Starters thought it’d be the perfect time to bring up Irving’s thoughts on the Earth.

Irving laughed when he was asked a question about the Earth being flat, but not surprisingly, he stuck to his guns and said that he wasn’t going to readily admit that his flat Earth theory may have been wrong. As he has done in the past, Irving also reiterated that the larger point he was trying to make when he said the Earth is flat wasn’t really about the Earth or science at all.

"For me, it’s not about whether the world is flat or whether the world is round," he said. "It’s really about everyone just believing what they want to believe and feeling comfortable with it. I’m not a scientist. I’m not here to tell everyone this is it. For me, it’s just giving everyone a chance to do their own research and find their own knowledge rather than having knowledge just shoved to you."

It admittedly would have been awesome if Irving had said something like, "You know what? I was up in a plane today and looked down and realized that the Earth is round. My bad!" But at the very least, Irving is now spelling out exactly what he was trying to do with the whole flat Earth thing from the beginning rather than continuing to try to make everyone believe that he’s actually a flat Earther.