>>16799695
The early universe was too hot for even atoms to form. When it expanded and cooled enough to do so, all the complexity of chemistry, stars, and galaxies emerged. The first stars forged the heavier elements that made rocky planets like ours possible. Which in turn made the emergence of life possible.
We've known about this for mere decades, we still haven't come to terms with the radical implications of this view of reality even while it has existed long enough for us to take it for granted.