@Doomed_Daniel Good question. So you get reflections when mediums have different refractive indexes, but is that how mirrors work too or is that because of the electrical properties? I forget...
The distinction seems important otherwise refraction would break down too. You wouldn't be able to see them through glass, or even the lens in your eye! It also could imply that you would see their reflection in a puddle since that's a fresnel reflection.
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