We have yet to successfully combine quantum mechanics with gravity into a single theory of Quantum Gravity .
Smolin presents his own solution: a "realist" theory based on a relational view of the world . He explores the idea that non-locality is fundamental and that the universe is made up of a network of events and their relationships. Why the Revolution is "Unfinished" We have yet to successfully combine quantum mechanics
In theoretical physicist Lee Smolin argues that the current "anti-realist" version of quantum mechanics is fundamentally incomplete. He contends that we must look beyond standard quantum theory to find a description of the universe that makes sense to "common sense realism"—the idea that the world exists independently of our observations. We have yet to successfully combine quantum mechanics