"Because, everything that they send - or that they want to say they're sending - doesn't come back," Irving argued, tugging on his tinfoil hat. "There is no concrete information except for the information that they're giving us. They're particularly putting you in the direction of what to believe and what not to believe. The truth is right there, you just got to go searching for it."
Not only did he proclaim his flat-earth theory, he also professed to believing in aliens.
"There are extraterrestrial beings that exist in the universe," said Irving.
Apparently, the CIA also assassinated Bob Marley.
Why?
"He tried to bring people together and the fact that it was fundamentally built on love and truth and we kill people for doing the right thing like that," Irving believes.
The moon landed was faked, too.
"The fact that his footprints don't look the same comparatively to the boot that is in the museum is ridiculous. I look at this stuff all the time. His boot print is not the same, so you want me to really sit back after you proved it - they have a picture of it and his boot side by side - I need an explanation."
Irving is not the only NBA player to hold these flat-earth views.
We will find out just how serious these viewpoints are when he faces the media during his All-Star appearances this weekend.