Copenhagen vs Everett, Teleportation, and ER=EPR
  Quantum gravity may have as much to tell us about the foundations and interpretation of quantum mechanics as it does about gravity. The Copenhagen interpretation of quantum mechanics and Everett's Relative State Formulation are complementary descriptions which in a sense are dual to one another. My purpose here is to discuss this duality in the light of the of ER=EPR conjecture. 
Leonard Susskind
hep-th gr-qc quant-ph