Hertog explained that “the laws of physics — the rules on which the universe runs — turn out to be just perfect for the universe to be habitable, for life to be possible.”
This remarkable string of good luck stretches from the delicate balance that makes it possible for atoms to form molecules necessary for chemistry to the expansion of the universe itself, which allows for vast cosmic structures such as galaxies.
https://www.voanews.com/a/stephen-hawking-s-last-collaborator-on-physicist-s-final-theory/7112570.html