“These two discoveries, of relativity and of the quantum, each required us to break definitively with Newtonian physics. However, in spite of great progress over the century, they remain incomplete. Each has defects that point to a deeper theory. But the main reason each is incomplete is the existence of the other.”

“These two discoveries, of relativity and of the quantum, each required us to break definitively with Newtonian physics. However, in spite of great progress over the century, they remain incomplete. Each has defects that point to a deeper theory. But the main reason each is incomplete is the existence of the other.”

— Lee Smolin