9. Fine-Tuning for Life

One of the most remarkable aspects of the cosmological constant is its apparent fine-tuning.
If Λ were much larger, galaxies and stars would never have formed; if smaller, the universe might have collapsed in on itself.
As New Scientist highlights, this delicate balance sparks debates about cosmic “design” and why our universe is so hospitable to life.
The mystery of Λ’s value continues to challenge scientists and philosophers alike.