To some of you, it's absurd that we even have to explain where this meme came from. To those people, we'd like to point out that it's now been twenty years since the release of the first 'Matrix' movie. The chances are that most people under 25 have never seen it, and so they know this iconic picture of Morpheus better as the meme that appears to tell you a fact that's about to blow your mind. Conversely, it's also sometimes used to point out the obvious.
Morpheus was, of course, played by the actor Laurence Fishburne, who never actually said a line that began 'what if I told you,' in the entire movie, or any of its sequels. It's up there with 'beam me up, Scotty,' and 'play it again, Sam,' as famously misremembered and misquoted lines. Or is it all just a glitch in the Matrix?