This has to be the best example of the Many Worlds hypothesis by Hugh Everett, a theory that postulates that an infinite number of parallel universes exist thanks to quantum mechanics, with infinite versions of you doing infinite number of actions with infinite number of outcomes. Just like Mario here:

Multiverse Launching Buffy, Titanic, Second Life-ish Titles

9/04/08 8:40am

Multiverse were working on a Firefly MMO. We say "were", because as of today, that project's been "delayed", which in light of the following sounds a lot more like "cancelled": the company have announced they're working on a Buffy title, a Titanic title and a Second Life clone. The Buffy one sounds like the fleshiest…

Super Mario World is the key to parallel universes

Multiverse Launching Buffy, Titanic, Second Life-ish Titles

Popular from Kotaku

NBA 2K's Player Ratings Explained At NBA Wedding

We Played SNES Classic And It Has Rewind Now

Shenmue III's Trailer Is Real Bad

Flying Sucked Before It Involved Urine-Soaked Seats, Which By the Way, It Apparently Does Now

You Can Actually Do Something Good With Those Eclipse Glasses

Staring Directly at a Solar Eclipse Is Good Now, Actually

NBA 2K's Player Ratings Explained At NBA Wedding

We Played SNES Classic And It Has Rewind Now

Shenmue III's Trailer Is Real Bad