Fine-Tuned Universe

The gravitational constant, the speed of light, the mass of an electron, and other mathematical constants appear to be the foundation of everything in the universe, no matter how far we look. All of these constants must have the same value and be exact to a perfect degree in order for life to exist as it does. The chemical interactions that allowed life to evolve on Earth might not have occurred if these numbers had even been a little bit different. The universe might not have ever existed if it had been too off. It almost seems as though everything is neatly "fine-tuned" for life around us.

Why are the values of these constants what they are? is another unanswered topic for scientists. These values appear to be a part of the fundamental laws of the universe because we have never been able to develop a theory that can anticipate them. We still lack a working theory or equation that can determine these constants' known values with accuracy.