Loop Quantum gravity (LQG) had its origins with theories based on the Quantum geometries of space-time.
The spirit of the effort appears to have a basis in fact as experimental evidence from The Large Hadron Collider and The Hubble Telescope continue to provide pieces of information that both confirm theories (Higgs Boson) and continue to raise new and confounding issues such as Dark Matter and D.
Theoretical physics has been working towards developing a Theory of everything (TOE) for decades.
Loop Quantum gravity (LQG) had its origins with theories based on the Quantum geometries of space-time