"Still, the technique of using polarized light to differentiate left-from-right is crude compared to what electronic projection will offer the viewer in the future." How do you know where 3D will be in the future? "but to criticize a technology in its infancy is patently unfair". Infancy? Where have you been for the last few decades? 3D technology has been around for a long time (hardly an infant) and it hasn't gotten much better at all. 3D will never be as realistic as real life and trying to "trick" the brain into believing it is the reason some people (and I'm sure it would be most if not all people when they start watching it regularly instead of the occasional movie theater visit) get headaches and other problems.