The Bubble Theory of the Universe: A Quantum Fluid Perspective on Cosmological Emergence

This work proposes a cosmological model in which our universe is conceptualized as a three-dimensional “bubble” formed within a higher-dimensional, quantum fluid-like primordial ocean medium. Integrating modern cosmological frameworks such as cosmic inflation, the holographic principle, brane cosmology, and fluid-gravity analogies, the model proposes that the universe emerged as a local explosion within a larger physical structure. The formation of the bubble could have been initiated by an external trigger related to the negative pressure of the medium surrounding the bubble, or by a phase transition or internal local explosion, explaining the observed accelerated expansion of the universe. The external medium could be the source of dark energy. The boundary of the bubble is treated as a reflective, information-encoding interface that interacts with electromagnetic and gravitational waves, potentially leaving observable cosmological signatures. The assumption that the ocean surrounding the bubble obeys different physical laws exhibits behavior consistent with scenarios in quantum gravity and multiverse theories. Testable predictions could include spectral distortions in the Cosmic Microwave Background (CMB), echoes in gravitational wave data, and topological patterns in the distributions of large-scale structures. This model brings together existing paradigms in cosmology while providing new insight into the nature, boundaries, and origin of our universe.