As with two same lenght sound waves 180degrees out of phase travelng the same direction, would out of phase photons in the same weay would not be percievable? (do they even exist at all?) For perfect white, where every frequency is taken (of course, it would take pretty much infinite amount of energy, but still, for the sake of the thought), it would all consist of out of phase (180) photons and would not be visible.. Black. Is this true? Does generating a by 180 out of phase waves really creates a wave at all?