Light can be left or right polarized (circularly or elliptically). This is achieved by passing unpolarized light through various polarizing crystals which are optically active (ie chiral). My paired questions are: 1. When we consider the photons before they strike the polarizers, can we think of those unpolarized photons as traveling in pairs or a pair-like fashion? 2. If they can not travel as pairs, then what evidence contradicts this possibility?