Retired Tom Brady posts video of himself running 40 times faster at age 46 than he did at age 22

Tom Brady's NFL scouting group is part of his legend. When he met NFL teams from Michigan, he didn't look the part of a future NFL MVP, and his sluggish 40-yard dash would find its way into NFL Network's coverage of the combine every year. There's a reason he was selected in the sixth round.

Also, Brady is aging in reverse like football's Benjamin Button.

Brady wanted to make up for his slow 40th time at the NFL Scouting Combine — 5.28 seconds in 2000, when he was 22 — by running it again at age 46. That was about a year after he retired from the NFL.

And if you believe the video Brady posted on social media, Brady has beaten his time since 2000.

Brady had two stop clocks while running, one at 5.18 seconds and the other at 5.12.

Now, a few caveats: Anything on the Internet can be manipulated — maybe the clocks were a little fast (the virus wouldn't spread if Brady ran 5.3) or any of the other tricks you'd have to account for via a social media video. But if it's legit, Brady running 40 times faster at the age of 46 than he did at the age of 22 is absolutely astonishing. The number of athletes, even elite ones like Brady, who turn 46 faster than they did in their early 20s is very small.

The NFL's social media feed even had an overlay of Brady's 40s:

Brady was known to be obsessed with his health regimen, which is one of the reasons he had more success as a quarterback in his 40s than any other player in NFL history. Of all of Brady's wins against Father Time, him being faster now than he was in 2000 would be one of the most impressive.

No one will stop showing Brady the slow 40 from two decades ago. But a lot has changed since then.