And basically everyone cannot get over how similar they look.
The top comment on the photo read, "That's what I love about people in old photographs, man. I get older, they stay the same age," referencing one of the 46-year-old actor's most well-known lines in his breakout movie, Dazed and Confused.
While the jury's still out on whether McConaughey is a time and space traveller, the resemblance to the great-great-grandather is surprising given the actor's ability to dramatically alter his own look for roles in recent years. After dropping a shocking amount of weight for his role in 2013's Dallas Buyers Club, he was spotted last year rocking a balding head and major dad bod for the film, Gold.
Whether or not McConaughey is the reincarnation of someone’s great-great-grandfather, we can all agree that he's wise beyond his years.