The Spontaneous Universe theory proposes that our universe originated from a quantum fluctuation in a higher dimensional static universe. This fluctuation caused the creation of our 4-dimensional space-time and the Big Bang, leading to the expansion and evolution of the universe as we know it.
The Big Bang theory suggests that our universe was born from a singularity and has been expanding ever since. The Spontaneous Universe theory, on the other hand, proposes that the universe has always existed in a static state and was triggered into expansion by a quantum fluctuation.
While the Spontaneous Universe theory is still a relatively new idea and has yet to be fully tested, some evidence that supports it includes the observation of cosmic microwave background radiation and the flatness of the universe, both of which are predicted by the theory.
If the Spontaneous Universe theory is proven to be true, it would drastically change our understanding of the origins of the universe and the nature of space and time. It could also have implications for other areas of physics, such as quantum mechanics and relativity.
The Spontaneous Universe theory is still a new and developing concept, so it is not yet fully integrated into the current understanding of the universe. However, it offers an alternative explanation for the origins of the universe and may provide new insights into the mysteries of our universe.