Albert Einstein said that what he wanted to know was “God’s thoughts,” which is a metaphor for the ultimate and most basic rules of the universe.  Once known, all other phenomena would then be a consequence of these simple rules.  While modern science is far from that goal, we have some thoughts on how this inquiry might unfold.  In this video, Fermilab’s Dr. Don Lincoln tells what we know about GUTs (grand unified theories) and TOEs (theories of everything).