The Multidimensional Nature of Existence
"Concerning matter, we have been all wrong. What we have called matter is energy, whose vibration has been so lowered as to be perceptible to the senses. There is no matter."
—Albert Einstein
At this stage of my understanding, I firmly believe that both we and the universe are inherently multidimensional. The reason we perceive the world in a three-dimensional manner is simply that we are designed to do so. Our senses and cognition are bound to the constraints of three-dimensional space, limiting our external perception. However, science has yet to formulate a comprehensive explanation of life and the universe through a true multidimensional framework.
String theory, for instance, suggests that the universe consists of eleven dimensions—yet even this theory remains controversial among scientists. If the universe itself is multidimensional, then so too must be every entity within it—each object, phenomenon, and being. This naturally raises profound questions: What are these extra dimensions? How many dimensions can exist?
We have no definitive answers, nor concrete scientific proof. However, the purpose of this writing is not to offer scientific rigor, but rather to express my personal beliefs and insights.
Knowledge as a Dimension
One of the most overlooked aspects of existence is knowledge—the fundamental element that allows us to define and experience reality. We exist because we are aware of our existence. Without knowledge, the concept of existence itself becomes meaningless. Yet, when explaining the universe, mainstream science predominantly focuses on space and time, often disregarding the role of information.
I propose that knowledge itself should be recognized as a dimension—one that fundamentally determines intelligence and capability. The intelligence of any system, whether biological or artificial, can be measured by the quantity of knowledge it possesses. If thoughts are multidimensional, then one of their dimensions is undeniably information. Imagination and dreams, too, are multidimensional—they exist beyond physical constraints, yet they shape reality as profoundly as the tangible world.
The Pursuit of Higher Dimensions
One of my deepest aspirations is to model thoughts, imagination, and dreams—to understand their structure in a multidimensional framework. In essence, I wish to model desire itself. However, achieving this requires breaking free from lower-dimensional thinking.
This is why I am deeply invested in the idea of a multidimensional universe and multidimensional human beings. By expanding our perception, we can begin to view thoughts, dreams, and visualizations as real and structured phenomena, rather than mere abstractions. Interestingly, many ancient Eastern philosophers and spiritual gurus are believed to have reached higher-dimensional states through meditation and the awakening of inner consciousness. If they have achieved it—if they have demonstrated profound internal and spiritual mastery—why does modern science still struggle to describe such experiences?
I believe that future research must explore this uncharted territory. It is time to elevate both human invention and scientific inquiry into the higher dimensions, and one immediate step we can take is incorporating knowledge as a fundamental dimension in our engineering and scientific principles. This applies not only to human cognition but also to the evolution of technology.
Higher Dimensions in Communication Systems
A system's complexity increases with its dimensionality, but so too does its potential. Real-world problems often involve multiple dimensions and constraints. The more we understand these dimensions, the greater our ability to harness them. Thus, the motto should be: Expand the dimensionality of thinking and vision as much as possible.
This principle applies even in the realm of wireless communication systems, where knowledge of the communication channel plays a crucial role. Currently, interference alignment—one of the most promising techniques in modern wireless communication—relies on perfect channel knowledge. However, in practical scenarios, such precision is rarely achievable. This raises an important question: How much channel uncertainty should interference alignment tolerate?
Dr. Vincent Poor's research suggests that delayed feedback can enhance the degrees of freedom in interference channels. A particularly fascinating concept within this research is the spatio-temporal variation of feedback, which explores how the unpredictability of feedback can be strategically used to optimize communication.
Consider a base station with K antennas transmitting to K users simultaneously. Each user must contend with one desired signal and K−1 interference signals. Determining the full capacity of such an interference channel remains an open challenge, despite decades of research.
Rethinking Interference: A Friend, Not an Enemy
For years, interference has been viewed as an obstacle in wireless communication, but should it be? Instead of suppressing it, can we harness its power? Interference is still energy—why not find ways to utilize it?
While traditional approaches such as interference alignment, containment, cancellation, and exploitation aim to mitigate interference, we should also consider harnessing interference as a resource. A few researchers have begun exploring the possibility of harvesting interference power to wirelessly charge devices, opening up a groundbreaking new perspective.
The next frontier in communication technology lies in understanding how to manage interference optimally with minimal channel knowledge. The question remains: How can we extract the maximum benefit from interference with the least amount of information?
The Grand Takeaway: A Multidimensional Perspective
The pursuit of higher dimensions—whether in physics, cognition, or technology—is more than an intellectual exercise. It is the key to unlocking the unknown. Just as ancient explorers once believed the Earth was flat until they ventured beyond the horizon, we, too, may be standing at the threshold of a greater reality.
Perhaps, in the grand scheme of existence, what we perceive as infinite is merely another boundary waiting to be surpassed.
And the only way to break through?
To think beyond—to explore beyond—to perceive beyond.
For knowledge is not just power—it is a dimension in itself.