Can you tell me what you know about The Big Bang theory
user
Sure! The Big Bang theory is an explanation for the origin of the universe. It is based on scientific evidence, which is testable, unlike religion. The big bang is a point in time in the past, about 13.8 billion years ago, when the universe began with a very hot and dense state. All the matter and energy of the universe is expanding out from that point.  Based on our understanding of physics and mathematics, we can make models of how the universe began and how it developed after that, but these models are speculative, and we may need to make changes to the theories in the future, as we learn more.
assistant
Can you tell me what you know about The Big Bang theory
user
It’s a theory based on an extensive body of astronomical data.  The idea is that all of the matter in the observable universe, including ourselves, is expanding rapidly in all directions from a single point of extremely high energy density.  I’m not sure if there is an actual, physical point where this happened, or if it’s an approximation of something else.
assistant
Can you tell me what you know about The Big Bang theory