Scientists have long been bothered by why the physical conditions, laws and fundamental constants of the universe seem to be so fine-tuned to allow the existence of planets such as ours and living beings such as us. On page 235 of his book Chaos and Harmony, a University of Virginia professor of astronomy (Trinh Xuan Thuan) stated this:
"The long technical name of the parameter v is 'the vacuum expectation value of the Higgs field.'....The value of v is a great puzzle to particle theorists; in fact, it is one of the central puzzles of physics. What is puzzling is that in reasonably simple theories v seems to want to come out to be, not 1, but a number like 1017, i.e, 100,000,000,000,000,000...As far as the possibility of life emerging in our universe is concerned, it would be a disaster for v to be 100,000,000,000,000,000. It would also be a disaster if it were 100,000,000,000,000, or if it were 100,000,000, or if it were 100,000, or if it were 100. Indeed, it would be a disaster if it were 10, or 5, or even 1.5. It would probably be a disaster if v were even slightly different from the value it happens to have in the real world."
In an attempt to explain such things, physicist Lee Smolin has long advanced a groundless theory he calls cosmological natural selection, one that no one seems to advance other than himself. It's a theory of a cyclical universe in which the laws of the universe change in each cycle.