The anthropic principle observes that the physical constants of the universe appear to be fine-tuned for the existence of conscious life. If the gravitational constant were slightly different, stars...
The anthropic principle observes that the physical constants of the universe appear to be fine-tuned for the existence of conscious life.
If the gravitational constant were slightly different, stars would not form. If the strong nuclear force were slightly different, atoms heavier than hydrogen would not exist.
If the electromagnetic force were slightly different, chemical bonds would not hold.
If the cosmological constant were slightly different, the universe would have expanded too fast for galaxies to coalesce or collapsed back on itself before stars could ignite.