The Swift playground supports time travel, so this may be possible.

Yeah, I saw @Stammy's tweet too. https://twitter.com/Stammy/status/473536229531586562

By my count, approximately 1839 people have tweeted something similar so far. The first one was pretty funny.

Dozens of people were tweeting this same joke.

even i tweeted the same joke, not knowing others were doing it.

What I find more amazing is that, as humans, we have all chosen "5+ years" as the experience level in our jokes.