In Brian Greene's book "Fabrics of the Universe" he also mentioned some other experiments that completely shattered our understanding of reality. One such was t

In Brian Greene's book "Fabrics of the Universe" he also mentioned some other experiments that completely shattered our understanding of reality. One such was the quantum eraser and especially delayed choice quantum eraser, which COULD mean causality can be violated. http://en.wikipedia.org/wiki/Quantum_eraser_experiment http://en.wikipedia.org/wiki/Quantum_eraser_experiment http://en.wikipedia.org/wiki/Delayed_choice_quantum_eraser http://en.wikipedia.org/wiki/Delayed_choice_quantum_eraser