Apparently the word "past" is an abbreviation, backward of course, for "Temporal Sentient Alien Personage." / Thus one is reasonably led to conclude that the past is in fact an alien.
A Ancient Aliens meme.
Ancient Aliens is Giorgio A. Tsoukalos, the wild-haired host of the History Channel series Ancient Aliens, gesturing as he explains a theory. The show suggests that aliens influenced human history, and his confident answer to every mystery made the meme: "I'm not saying it was aliens... but it was aliens." Captions blame aliens for anything unexplained, from lost socks to perfectly parked cars.