The idea that our universe could be a result of a quantum fluctuation in another universe or multiverse is a concept that has been explored within the realm of theoretical physics. While it is an intriguing possibility, it is important to note that this is a speculative hypothesis and remains an area of active scientific investigation.
In certain models of the multiverse, such as eternal inflation or string theory, it is postulated that our universe could have emerged as a quantum fluctuation or a bubble within a larger multiverse. According to these ideas, our universe would be just one of many possible outcomes, each with its own unique physical properties and laws.
However, it is essential to emphasize that at present, there is no direct observational evidence to confirm or refute the existence of a multiverse or the specific mechanism by which our universe might have originated. The nature of the multiverse and the mechanisms of its potential interactions with other universes or higher-dimensional structures are still matters of theoretical speculation.
As scientific understanding progresses and new empirical evidence becomes available, our understanding of the nature of the universe and its possible connections to other realms may evolve. But for now, the concept that our universe arose from a quantum fluctuation in another universe or multiverse remains a speculative idea within the realm of theoretical physics.