If you look at an hologram, especially the transmission type, there is no image there to see. The image is 'dead'. Still if you shine the usual, decoherent light, through the hologram, it doesn't reconstruct any image at the other end. The image is there relative to the coherence of the light. Same applies to the 'immortal body' in the holographic universe. The meaningless image in the hologram is 'homeomorphic' to the meaningfull image it project.
Quantum Entanglement allows us to understand the above in a more literal (non-analogy) way. Two quantum entangled photons will get horizontaly and verticaly polarized at synch, no matter how far apart they are! This 'vertical'/'horizontal' polarization is the quantum superposition, akin to the 'life and dead' cat. So to truely understand quantum entanglement in macroscopic scale, we must understand what happens to 'quantumness' during 'observation'. This is termed 'quantum decoherence'.