meet me in the pit

You might want to strap in your seat belts, because today we are going to tackle the anonymously-requested Giratina, and the theory of the Multiverse.
Giratina resides in the distortion world, which is said to be an alternate dimension or universe opposite the pokémon world.
There’s a popular physical theory, supported by mathematics but not yet experimentally proven, called the Multiverse Theory. This theory states that there are an infinite number of universes where infinite things happen. For example, according to this theory, there could be a universe where World War II never happened, a universe where you wore a different shirt today, or as Stephen Hawking recently stated, “It would not be beyond the realms of possibility that somewhere outside of our own universe lies another different universe. And in that universe, Zayn is still in One Direction.”
More importantly, one of these universes could be the distortion world.
Let’s talk about some of the possibilities for the multiverse theory:
First of all, we (think) we live in a 3-dimensional universe. Length, width, and height make up three dimensions that we can measure in. But what if there were more dimensions? While nearly impossible to imagine, you can try. Think of a 3-dimensional cube, for example. Every cross section of that cube is a two-dimensional square. Every cross section of the square is a one-dimensional line. Extending this to higher dimensions, every cross-section of a 4-dimensional universe would be a three dimensional one.
Another model of the multiverse deals with Quantum Mechanics. While being one of the scarier branches of physics, quantum mechanics tells us that anything that can happen, will happen. Or, maybe more accurately, anything that can happen does happen. A side effect of this is multiple universes. In our universe, if you eat a sandwich, there are an infinite number of universes where you had a pizza instead, or a hamburger, and even a universe where the sandwich ate you.
Similarly, we know our universe is expanding. From this, physicist have extrapolated that there may be many pockets of space that are independently expanding, creating multiple “bubble” universes.
Another model says that if space is truly infinite, then it must start repeating itself at some point, since there are a limited number of ways to rearrange particles. Each of these repetitions, while practically infinitely apart, would be a parallel universe.
There are many other models out there, but you get the point:
The universe is made of multiple independent universes. The distortion world is a parallel unvierse to our own.
While Dialga and Palkia correlate to time and space in pokémon lore, Giratina is the guardian of antimatter.
Antimatter was mathematically predicted as early as the 1880s, but wasn’t experimentally confirmed until 1955. Antimatter, whether you know it or not, is created all the time in large particle colliders, in cosmic rays, in lightning strikes, or even, literally, out of nowhere.
Antimatter is identically to the matter we see in our universe, but has a completely opposite charge. Antiprotons have the same mass and size as protons but are negatively charged, antielectrons (also known as positrons) have the same mass and properties as electrons, but are positively charged. Same goes for every particle we know of.
The exciting stuff happens when matter and antimatter meet. If a positron collides with an electron, both of them are completely annihilated in the collision.
Einstein said it better than I ever could: “On the big Bang theory: For every one billion particles of antimatter there were one billion and one particles of matter. And when the mutual annihilation was complete, one billionth remained - and that’s our present universe"
Our world is made of our matter because there was just slightly more matter than antimatter in our universe. The distortion world is the opposite case. The distortion world is made of antimatter.
The “violence” that Giratina was banished for likely wasn’t intentional at all. Instead, the antimatter that Giratina is made of simply annihilated with all of the matter in our universe. Instead of causing destruction, Giratina was banished to a world that is made of the same stuff that he is.
Giratina and the distortion world are made of antimatter. In our world, Giratina was annihilating our matter simply by being near it, so he was banished to a universe made of antimatter.
Coincidentally, this also explains why you’d be able to walk on the walls and ceilings of the distortion world. Since the matter in your body is oppositely charged as antimatter, they naturally attract. This simple electric force would easily overpower gravity, allowing you to walk on walls.
This doesn’t explain how you don’t instantly die in the distortion world, though. Oh well.