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This paper illustrates various aspects of the ER=EPR conjecture.It beginswith a brief heuristic argument, using the Ryu-Takayanagi correspondence, forwhy entanglement between black holes implies the existence of Einstein-Rosenbridges.  The main part of the paper addresses a fundamental question: Is ER=EPRconsistent with the standard postulates of quantum mechanics? Naively it seemsto lead to an inconsistency between observations made on entangled systems bydifferent observers. The resolution of the paradox lies in the properties ofmultiple black holes, entangled in the Greenberger-Horne-Zeilinger pattern.  The last part of the paper is about entanglement as a resource for quantumcommunication. ER=EPR provides a way to visualize protocols like quantumteleportation. In some sense teleportation takes place through the wormhole,but as usual, classical communication is necessary to complete the protocol.

ER=EPR, GHZ, and the Consistency of Quantum Measurements