Introduction to Cosmic Fine-Tuning

In order for you to be reading this post right now, the fundamental structure of the universe has to be finely-tuned for intelligent life. The forces, principles, and constants of physics, certain physical quantities, the ratios between the masses of atomic particles, and the properties of elements and compounds have to be just right, or you wouldn’t be here.

Here's a short introduction to the fine-tuning of the cosmos: