How does the quantum description of reality, which includes
elements such as the superposition of states and wavefunction
collapse or quantum decoherence, give rise to the reality we
perceive? Another way of stating this question regards the
measurement problem: What constitutes a "measurement" which
apparently causes the wave function to collapse into a definite
state? Unlike classical physical processes, some quantum mechanical
processes (such as quantum teleportation arising from quantum
entanglement) cannot be simultaneously "local", "causal", and
"real", but it...