M U L T I V E R S E

"Then we discovered protons and neutrons in the nuclei of the atom, and then the quark, and so every time we discover a new boundary to the universe, we keep saying, 'This is it.'...First, it was the Earth, then the solar system, then the Milky Way galaxy, and then billions of other galaxies. But now many physicists are already theorizing that there are a multitude of universes!” 
~ Jason Lincoln Jeffers, The Next Human