What is ex nihilio?

Ex nihilio is a Latin phrase that translates to "out of nothing." The term is commonly used in philosophy and theology to refer to the belief that the universe was created by a divine entity or force. This idea contrasts with the theory of spontaneous generation, which asserts that life and matter can arise from non-living material. In modern physics, the concept of ex nihilio has been used to describe the origin of the universe in the Big Bang theory, where the universe is believed to have emerged from a singularity.