While the common perception of the universe is an expansive, three-dimensional space extending in all directions, some unconventional theories propose a different model: a vertical universe. This theoretical model stipulates that the universe, rather than expanding outward in all directions, stretches vertically, similar to a cosmic skyscraper. These theories may seem far-fetched, but some compelling evidence supports this idea.

The Fundamentals of a Vertical Universe

The concept of a vertical universe challenges the conventional understanding of space-time. Traditional cosmology views the universe as a three-dimensional entity with time as an additional dimension, forming a four-dimensional space-time continuum. However, a vertical universe would involve altering this understanding.

To grasp the vertical universe concept, imagine a multi-story building where each floor represents a different universe. Each floor (universe) has its own laws of physics and unique attributes, and they all stack upon each other, creating a sort of cosmic hierarchy.

Theoretical Backing: String Theory and Multiverses

String theory, a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings, inadvertently supports the vertical universe concept. One of its derivatives, M-theory, postulates the existence of multiple dimensions – up to eleven, as opposed to the four-dimensional world we’re familiar with.

This extension into multiple dimensions allows for the possibility of verticality. That is, instead of viewing these extra dimensions as expanding outward in a horizontal sense, we can interpret them as vertical layers stacked on top of each other.

Moreover, the vertical universe theory aligns with the concept of multiverses. In the multiverse model, multiple universes coexist simultaneously, with each one differing from the others in terms of physical laws and properties. If we consider these universes as layers, it isn’t a leap to imagine them arranged vertically, resulting in a vertical multiverse.

Evidence from Cosmic Background Radiation

Some proponents of the vertical universe theory argue that cosmic microwave background radiation (CMBR) – the faint echo of the Big Bang – supports their view. They contend that certain “anomalies” or “cold spots” in the CMBR could be interaction points between our universe and those in the vertical stack above or below us.

These alleged interaction points may cause gravitational leakage, which could explain the presence of dark matter, an unseen substance that makes up about 27% of the universe’s mass-energy content. This theory, while speculative, offers an intriguing alternative explanation for some of the mysteries of modern cosmology.

Implications of a Vertical Universe

The implications of a vertical universe are vast. It would redefine our understanding of the universe’s structure and potentially explain unanswered questions in physics. For example, the strange behavior of quantum particles might be better explained in the context of a vertical universe where their unusual properties are the result of interaction with other “floors” of the universe.

Moreover, if the vertical universe theory is accurate, it might alter our perspective on time. Each layer of the universe could represent a different time period, potentially providing a new understanding of time travel.

Conclusion

The vertical universe theory, while unconventional, offers a novel perspective on our universe’s structure. Its roots in string theory and the multiverse concept provide a solid theoretical backing, while observed anomalies in the cosmic microwave background radiation could serve as empirical evidence. Despite its speculative nature, this theory offers a fascinating window into potential new realms of physics, cosmology, and our understanding of reality. As research progresses, we may find that our universe is much more vertically inclined than we once thought.