Did this toddler's shopping cart just hit 88 miles per hour?
A dad shopping at Costco with his young son may have proved that "Back to the Future" wasn't just a movie after all.
The father posted a picture on Reddit of his little boy dressed in the exact same lime green polo and plaid shorts as a much older man in the background.
"I guess I know what my son will look like in 70 years..." the dad wrote about his little boy's look-alike. (Woman's Day was among the first to flag the funny photo.)
Perhaps old Biff Tannen zipped back from the future to slip young Biff a Grays Sports Almanac when his dad was not looking?
He's just waiting patiently on a bench for his opportunity.
More Parents videos
This boy can't believe it when Disney characters start using sign language
Should parents be punished for bad behavior? TODAY anchors say…
‘She is with me always’: A story of birth, loss and organ donation
Broadway’s Eric Petersen performs song inspired by Trevor Harris’ Tourette’s PSA
If the older man is in fact the boy's future self, they should avoid meeting, or else it could create a time paradox, the results of which could cause a chain reaction that would unravel the very fabric of the space time continuum, and destroy the entire universe!!
So there's that.
Reddit commenters had other theories.
"Your son just wanted to see his father one more time before he died, so he took a Delorean Uber back to 2016," one wrote.
Another added, "All universes cross at Costco."
Follow TODAY.com writer Scott Stump on Twitter.