Many scientists believe our universe is just one within an infinite multiverse. And in an infinite multiverse, anything that could happen happens in some parallel universe. But that implication of infinity is wrong.
An infinite multiverse would be like an open-world video game. It is programmed so that anything could happen (within the laws of the game/universe), but not everything that could happen will happen.
Millions of people could play the video game, and each will play it differently, but not necessarily in every possible way. The game player will not explore every aspect of the game—they will play a limited portion of the environment. They could take time to explore every possibility, but they won’t. There’s no point.
The universe may work the same way. Just because anything could happen doesn’t mean it will. Certain outcomes are more likely than others and will repeat.
Quantum mechanics may be proof that our universe is programmed to behave in similar ways to open-world video games, aka simulations. The state of a particle isn’t determined until there is an observer. Like a video game, the world doesn’t react until you interact with the world.
For instance, if you’re playing Grand Theft Auto, and you're in Brooklyn, the CGI players and elements in the streets around you will react, but over in the Bronx, the CGI characters aren’t doing anything—not until you drive to the Bronx to observe them.
Superposition in our universe behaves just like an open-world video game. That doesn’t necessarily mean it is a computer simulation that is literally a video game in some higher dimension. It means that the universe was programmed—period. It was created. By who or what and why, we cannot know. But there must be a creator.