What Is The Universe

The video explores the concept of the universe, distinguishing between the observable universe and the whole universe. It discusses the limitations of our observations due to distance and time, and what is known to exist within the observable universe, including space-time, particles, and physical laws. The video also touches on the debate about the existence of mathematics within the universe and introduces the idea of parallel universes or multiverses.

How does the text describe the relationship between light and the visibility of distant objects?

What is the concept of parallel universes or multiverses as mentioned in the text?