The question of whether the existence of the universe is inevitable in a void of nothingness that predated the Big Bang is a topic of intense speculation and ongoing scientific investigation. The nature of what preceded the Big Bang, often referred to as the "cosmic singularity," is still not fully understood, and our current understanding of physics breaks down at that point.
According to the Big Bang theory, the universe began as an extremely hot and dense state about 13.8 billion years ago. However, what caused the Big Bang or what existed prior to it is still a subject of active research and theoretical exploration.
One hypothesis is that the universe originated from a singularity, which is a point of infinite density and temperature. However, our current understanding of physics cannot accurately describe the behavior of matter and energy at such extreme conditions, and it is unclear what physical laws or processes governed the universe at that point.
There are various speculative theories and models, such as the inflationary universe theory or the multiverse hypothesis, which attempt to explain the origin and existence of the universe. These theories propose mechanisms that could give rise to our universe from a pre-existing state, potentially including a void or a different type of cosmological entity.
Ultimately, due to the limitations of our current knowledge and the challenges in studying phenomena that occurred prior to the Big Bang, the question of whether the existence of the universe is inevitable in a void of nothingness remains an open and active area of scientific inquiry. Scientists continue to explore these fundamental questions through theoretical investigations, mathematical models, and observational data to deepen our understanding of the origins and nature of the universe.