Final answer:
The fine-tuning argument suggests that the universe is finely tuned for the existence of life. It claims that certain fundamental constants and conditions in the universe are incredibly precise, and if they were even slightly different, life as we know it would not be possible.
Step-by-step explanation:
The fine-tuning argument is an argument used to support the existence of God by claiming that the universe is finely tuned for the existence of life. It suggests that certain fundamental constants and conditions in the universe are incredibly precise, and if they were even slightly different, life as we know it would not be possible.
For example, if the force of gravity were stronger, stars would burn out too quickly for life to develop. On the other hand, if gravity were weaker, stars would not form at all. Similarly, if the cosmological constant, which determines the expansion rate of the universe, were slightly different, the universe would either collapse in on itself or expand too rapidly for galaxies and stars to form.