I wasn't really suggesting Glamours were easy. More that they aren't unusual or unheard of. Like a pair of toy night-vision goggles, the technique was probably amazing when first discovered and continues to work as expected, but it doesn't work well unless a lot is put into them, it still takes time and skill and maintenance to keep it working well, and ultimately when it isn't being used for something specific and important, it's regarded as a toy.
