Shane Kennedy said:What could have "seeded" the Big Bang
The Big Bang Singularity refers to the initial state of the universe, where all matter and energy were concentrated in an infinitely dense and hot point. This is believed to be the starting point of the universe and the beginning of the expansion of space and time.
The term "infinitely dense" is used to describe the singularity because our current understanding of physics breaks down at this point. It is not possible to accurately measure the density of the singularity, as the laws of physics as we know them do not apply. However, it is believed that the singularity was incredibly dense, but not necessarily infinitely so.
There are several pieces of evidence that support the existence of the Big Bang Singularity. One of the main pieces of evidence is the cosmic microwave background radiation, which is leftover radiation from the early stages of the universe. Additionally, the observed expansion of the universe and the abundance of light elements also support the idea of a singularity at the beginning of the universe.
At the moment of the Big Bang Singularity, the universe is believed to have undergone a rapid expansion known as inflation. This expansion caused the universe to grow exponentially in size and eventually cooled down enough for particles to form. This led to the formation of the first atoms, and eventually, the formation of stars and galaxies.
The Big Bang Singularity is currently the most widely accepted theory for the beginning of the universe. However, there are other theories, such as the Steady State theory and the Oscillating Universe theory, that propose alternative explanations. These theories are still being studied and debated among scientists.