# The Universe: Unique Perspectives of Dimensions, Time, and Light Speed

The universe, with its vast expanse and infinite mysteries, has always been a subject of fascination and curiosity. This article, based on the comprehensive video by Astrum titled “The Universe As You Know It Does Not Exist. Let me explain with a graph…”, delves into the intriguing concepts of dimensions, time, and light speed. It presents a unique perspective on the universe’s structure and the fundamental principles that govern it.

## Understanding Dimensions and Time

The video begins by challenging our conventional understanding of the universe and the speed of light. It introduces the concept of time as a dimension, akin to the three spatial dimensions we are familiar with. This idea, proposed by Einstein in his theories of relativity, unifies space and time into a single entity known as space-time.

It further explores the concept of dimensions, explaining how a one-dimensional being would perceive reality and how adding extra dimensions of movement allows us to transition from one-dimensional to two-dimensional to three-dimensional space. It also delves into why we can’t perceive time as a dimension, using a model that visualizes all of space and time in one model by compressing all of three-dimensional reality into a flat two-dimensional plane.

## The Shape of the Universe: Flat, Spherical, or Hyperbolic?

It then discusses the potential shapes of the universe: flat, spherical, or hyperbolic. Each shape would significantly affect our perception of the universe and its infinite or finite nature. It explains these shapes in detail, providing a comprehensive understanding of their implications.

## Light Speed: The Universal Speed Limit

One of the most intriguing sections of the video explores the concept of light speed and why it is considered the maximum speed in the universe. It proposes a theory based on hyperbolic 4D space that could explain this phenomenon. This theory suggests that the faster we travel in space, the slower we travel in time, a principle of Einstein’s relativity.

## Is the Universe real or not?

Not as you may know it. The video’s title “The Universe As You Know It Does Not Exist” is supported by several key points that challenge conventional understanding of the universe:

1. Time as a Dimension: The video introduces the concept of time as a fourth dimension, akin to the three spatial dimensions we are familiar with. This idea, which is central to Einstein’s theories of relativity, challenges our conventional understanding of time as a linear progression and instead presents it as an integral part of the fabric of the universe.
2. The Shape of the Universe: It discusses the potential shapes of the universe: flat, spherical, or hyperbolic. Each of these shapes would significantly affect our perception of the universe and its infinite or finite nature. This challenges the common perception of the universe as an infinite, flat expanse.
3. Light Speed and Hyperbolic 4D Space: It explores the concept of light speed and proposes a theory based on hyperbolic 4D space to explain why light speed is considered the maximum speed in the universe. This theory suggests that the faster we travel in space, the slower we travel in time, a principle of Einstein’s relativity. This challenges our conventional understanding of speed and movement in the universe.
4. The Unseen World: It emphasizes the beauty of the unseen world and the importance of asking questions to understand the universe better. It suggests that much of the universe around us cannot be directly seen, but can be detected through its influence on our day-to-day lives.

## The Unseen World and the Beauty of Questions

In conclusion, the video emphasizes the beauty of the unseen world and the importance of asking questions to understand the universe better. It encourages viewers to think about the concepts discussed and to continue exploring the mysteries of the universe. The video is a part of a series that aims to explain scientific concepts related to the universe in a simple and understandable way.