Yeah, that's just nonsense. We used sodium vapor monochromatic bulbs in my high school physics class to duplicate the double slit experiment. I suspect the rea

Yeah, that's just nonsense. We used sodium vapor monochromatic bulbs in my high school physics class to duplicate the double slit experiment. I suspect the real reason is that digital green screen in the hands of experienced people is "good enough" vs the complication of needing a double camera and beam splitting prism rig and such.