Chapter 13: Multidimensional Spaces and Parallel Universes

"Thank you for the explanation."

After gathering my thoughts, I thanked Buweiro, deciding to temporarily avoid asking him further about technology. Not only did it seem a bit intrusive, but even if he explained the principles, I wouldn't fully understand them. Too much information might just lead to confusion. So, I shifted the topic.

"Humans are currently very interested in parallel spaces, parallel universes, and higher dimensions. I see videos about them daily on social media. Some scientists speculate that we live in a three-dimensional space, and research suggests there may be higher dimensions—like the fourth, fifth, sixth, and so on—above our own, though this hasn't been proven. Has the Alliance studied this area, and have you confirmed anything? I'm curious, as I've often imagined what it would be like to enter a higher-dimensional space or parallel universe. Could you share any related knowledge?"

"Of course. Your question falls within the field of spatial studies. While the Alliance may not have as deep an understanding as the super-advanced Star Federation Union, our Interstellar Alliance has made significant progress through years of research. I'll share what I know with you."

Hearing that Buweiro was willing to explain, I listened intently as he continued.

"First of all, space has many layers, many degrees, many dimensions, many levels, and many hierarchical classifications. There's no unified terminology because each space differs in mass, frequency, and density. Space includes the universe, as well as past, present, and future—meaning that the universe's space is multidimensional. Put simply, the entire grand cosmos is composed of interconnected multiverses.

In these countless multiverses, any marvel can occur. There's nothing you can imagine that can't be discovered somewhere. Let me give you a glimpse of a few types of multiverses, such as the Void Universe, the Positive-Negative Universe, and the Elemental Universe. In some universes, there may even be another version of you.

"As for the parallel spaces and dimensional questions you mentioned, they belong to the realm of multiverses, and yes, they do exist. However, the nature of parallel universes and multidimensional spaces isn't as humans typically imagine, and it's not at all like the speculative explanations you see in short videos. These are mostly pure science fiction. In reality, parallel and dimensional concepts are merely mathematical and physical reference equations—simply put, they are computational equations."

"The Alliance has indeed discovered and confirmed the existence of many multiverses, each with its own distinct properties, frequencies, elements, and environments. However, even with current Alliance technology, we're still unable to enter these multiverses. Even if we found an entry point, communicating with the civilizations within them would be impossible. This limitation also applies to other non-member alien civilizations; perhaps only civilizations at Level-5 or above could accomplish it."

"So, the multiverse includes all spaces and universes. Parallel dimensions and higher dimensions are merely mathematical equations. You've discovered the existence of multiverses but can't yet reach them, right?" This was a mind-boggling topic, and although I wanted to ask more, I knew I lacked the knowledge to understand deeper explanations. Besides, if even the Interstellar Alliance couldn't enter multiverses, more questions seemed pointless.

"Do universes ever merge? If they did, what would happen—would it lead to a cataclysmic explosion or the formation of a new universe?"

"Human scientists often use dimensional equations to explore various applications in math, physics, and space. If you look at it through dimensional equations, universes with different dimensions wouldn't merge, as their masses, dimensions, and spaces are incompatible. For example, a flower made of wood and another made of plastic can't merge because their atomic elements and structures differ.

"To merge universes of different dimensions, you'd need super-civilization technology, but even then, the consequences are beyond the Interstellar Alliance's ability to predict. Not even the advanced civilizations of the Milky Way can achieve this."

Buweiro noticed my confusion and used a simple analogy to help me understand: "Only local universes of the same type can merge. If two local universes come into contact, some repel each other, making merging impossible—like a water-based universe and an electric-based universe. Other universes would merge and lead to destruction; for example, if our local universe collided with a fire-based universe, it would be disastrous. But occasionally, two universes merge and create a new one, like a soil-based universe merging with a wood-based universe.

"However, these chances are slim. Each dimension is vast, beyond imagination, and even if local universes continue to grow and move, the odds of them meeting are minuscule."

I stood up, took a few steps to calm myself, then sat back down across from Buweiro and asked, "What's the ultimate fate of all these multiverses? Is it destruction, upgrading, or something else?"

"All multiverses ultimately face destruction, regardless of whether they're low-level, high-level, singular, dual, or triple universes. They emerge from nothing and undergo phases of birth, growth, aging, and eventually death.

"In each multiverse, gravitational forces lead to the formation of initial particles, which evolve into elementary particles, elements, and substances, finally shaping a unique universe through gravitational forces. Every multiverse goes through stages akin to life: birth, formation, childhood, growth, adulthood, aging, and destruction, in a cyclical process. You can think of a universe as a life form, with a beginning and an end.

"As for the possibility of a universe 'upgrading' to a higher-quality state, the Alliance has calculated that the probability is minuscule. A universe in its aging phase could theoretically revive if it encountered a rare, special substance, but even then, it would eventually reach its end.

In fact, nothing is indestructible—not even naturally born universes. Perhaps advanced civilizations can control this, but the current capabilities of Earth's civilizations are far from sufficient."

Buweiro's explanations became simpler and more down-to-earth, allowing me to understand his points better. So, it turns out that the universe also goes through stages of birth, aging, and death, just like a living being, only on a different timescale. Who would have thought? Universes, too, face destruction.

Throughout history, so many people have gone to extreme lengths in the pursuit of longevity—does it really hold any meaning? It's better to live in harmony with nature, as even technology can't grant immortality. In a lifetime, whether it's about enjoyment or experience, as long as you stay true to yourself and honor your family, that's enough.

Feeling a mix of emotions, I continued: "Do universes have ranks, and if so, how many levels are there in the grand multiverse?"

"Of course, multiverses have ranks. As you humans say, everything has its own grade and quality, and that includes multiverses. However, we don't know how many levels there are or what the highest rank might be. Earth's other alien civilizations can't answer that either. Only legendary 'god-level' civilizations might know.

"Space is infinitely vast, and the ranks of universes can rise indefinitely. The more advanced a civilization's technology, the deeper they can explore. Though we may seem powerful to you, we're nothing in the eyes of a 'god-level' civilization. Even if they knew, they wouldn't share that knowledge with us."

"Oh, I see."

I nodded, feeling especially moved by Buweiro's final words. The alien civilizations hidden on Earth are far more advanced than human civilization, yet they neither share their technology nor even reveal their presence. Most of us don't even know they exist.

After a moment of reflection, I continued, "Could you tell me what levels of civilization the Alliance currently knows about?"

"Sure. First, let me explain that different civilizations and species use different terms for the levels or qualities of the universe. Even within the Interstellar Alliance, the terminology varies, though the general research direction is similar. Humans refer to these as dimensions, such as one-dimensional space, two-dimensional space, three-dimensional space, and so on. Some alien civilizations call them 'singular universes', 'dual universes', and so forth, while we refer to them as the 'first layer universe', 'second layer universe', and so on.

"The equations you humans use currently simulate space up to eleven dimensions. But regardless of the terminology, the general idea is the same." Buweiro noticed my understanding and continued, "Let me simplify further; otherwise, you might find it confusing. According to our terminology, our local universe is currently a third-layer universe.

A black hole is a powerful gravitational cluster. It can consume and grow, swallowing up all surrounding matter. Inside a black hole lies a warped fifth-layer universe space. Any material, tangible or intangible, that a black hole consumes is broken down into original fundamental particles. For humanity to extract and study these particles, it would need to advance to a Level-2 civilization.

These original particles are born from dimensional gaps in second-layer space and emerge into the third-layer universe. Over vast spans of time, they form various basic particles. Through countless years of fusion, collision, decay, and mutation, all basic particles eventually transform into fundamental elements that compose all matter in the third-layer universe.

It's like the third-layer universe is the body, the black hole is the mouth, and its interior is the stomach, digesting and then cycling everything back out. This concept is similar to the ideas of mutual generation and balance (相生相克) found in your country's Daoist philosophy."

"Hmm, I always thought the universe's operational system was incredibly mysterious. Who would have thought that Daoist philosophy holds such profound insights, delving into universal mysteries so early on? But isn't it unfair that your Interstellar Alliance restricts our technological progress and misleads us? After all, humanity hasn't committed any grave wrong-doing. Why should we be blocked?" I asked, both impressed and a bit frustrated. Though I knew my question might be impolite, I felt it was worth raising on behalf of all humans on Earth.