It's a big multiverse out there, and we are all merely a component of it. Humanity lives on a single insignificant speck of dust in a vast cosmos, but it goes much further than that. We are one of an infinite amount of insignificant specks of dust. It's difficult to comprehend just how large the multiverse is. In the span of a second, a single universe will have created countless other universes. based on the decisions we make, the possibilities that can happen, the spin of a particle. All creating new universes, and the moment those universes are created, they start creating universes of their own, and those universes start making their own universes, and so on and so on.

A flip of a coin does not make a single alternate universe, it makes billions upon billions. Based on how the coin was flipped, how it spins, how it could spin, and what it lands on. Flip a coin and you create more universes in that moment than there are observable particles in the universe.

It is vast, and has been creating new universes since there was only one. From one came two from two came four, from four came eight, and so on and so on. All in the span of a fraction of a fraction of a fraction of a fraction of second. It truly cannot be comprehended by any mortal mind.

Law of averages means that in the face of infinity, everything has happened, can happen, and will happen an infinite amount of times somewhere in some universe. Even things contradictory or impossible. For every all powerful being with the power to destroy all the multiverse, there are those of equal power able to save it. Even if that were not the case, time is very different in the infinite. A second here and an eternity there. Even those all powerful beings are themselves insignificant in the face of the true infinite of the multiverse.

However, just because we are insignificant, doesn't mean we are worthless. Meet Sketch, a human that ponies might find rather...Strange. Physics don't always match between universes, and he's about to find that the multiverse is a much stranger place than he ever imagined. He'll also find he is not the only one who slides between realities.