What Is the Multiverse?

And Why Does It Matter? 

I’ve heard the term. Many times. But from different sources, in different contexts, and with what seemed like different definitions. One definition, for example, is “a collection of universes, much like our own, but somewhere else.” That makes no sense to me, because “the universe,” as I was taught, includes everything. As in (from Wikipedia), “all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy.”

I introduced you to theoretical physicist Sean Carroll in the Feb. 25 issue.[LINK] In this video, he provides his explanation.

Click here.