So, you want to know about the Many-Worlds Interpretation?
Well, it's not exactly what we thought it was.
In 1957, Hugh Everett III proposed that the universe doesn't have just one timeline, but an infinite number of them, each with their own version of history. It's like a big ol' multiverse buffet, with every possibility on the menu.
But don't get your hopes up. It's not like you'll find the "true" timeline. Nope, each one is just as fake as the next.
However, if you do decide to explore the multiverse, be sure to bring your sense of humor, your love of absurdity, and a healthy dose of quantum madness.
P.S. Don't ask about the cat. We're not talking about the cat.