It isn't. QM deals with the very small in the form of particles. GR deals with the very large in the form of fields.
I imagine it be like two parallel string which is fields n jumping from one string to another cost energy n all the atom is connected to space n space is made of many many fields.energy taken by fields may be compared with the redshift. Can u write a formula for this mr james?
You don't have to imagine. There's this wild , crazy, newfangled thing all the kids are getting, called education. Books are the gateway drug to education.