@steve reid,
Quote: The fate of the universe has not been determined, the Big Crunch is but one of a few possibilities. Given that the universe’s expansion is accelerating, Heat Death is the more probable scenario
A singularity is a region of space-time in which matter is crushed so closely together that the gravitational laws explained by general relativity break down. In a singularity, the volume of space is zero and its density is infinite. Scientists believe such a singularity exists at the core of a black hole, which occurs when a super-massive sun reaches the end of its life and implodes.
General relativity also demands such a singularity must exist at the beginning of an expanding universe.
So, according to science, before this universe began to expand 13.8 billion years ago, there existed in the core of a monstrous Blach Hole, a singularity which had been created from all the matter that existed before the Big Bang, that had been swallowed into the mouth of a Black Hole which occurred when a super-massive sun that existed before the Big Bang reached the end of its life and imploded.
Interesting, don't ya think?