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Would this work? I think the light stops at the mirror because it's silver.
Normally
Silver mirror
So, technically, there really should be a vampire-shaped hole in the mirror where the vampire was.
If I’m standing next to a vampire and give them the shirt off my back, does my shirt turn invisible in the mirror when they put it on?
If a vampire gives me their shirt, at what point does it become visible in the mirror?
What if the vampire is wearing a rope- can they spool out a hundred feet of mirror-invisible rope as long as some is on their body?
I feel there’s a ton of applications for vampires- optics use mirrors a lot, can they wear a vehicle/tank/ship/etc and make it invisible to optics that utilize mirrors?
Well, if we treat incoming light as a quantum superposition:
|light⟩ = α|holy⟩ + β|unholy⟩...and assume that vampires reflect only unholy light and absorb holy light, then anything directly part of the vampire’s "system" filters light this way.
So I guess the question becomes, "How does the filtering happen?" Is it by physical surface, or is there some kind of quantum holiness field that absorbs holy light nearby?
So if sunlight hurts vampires, but moonlight doesn't (but moonlight is reflected sunlight) then does that mean the moon absorbs all holy light, and only reflects unholy light? Sunlight, we must assume, is composed of a random mix of all wavelengths and divinities of light. Therefore, can a vampire's reflection be seen if the vampire is illuminated by moonlight? Only if using a non-silver mirror? What about office fluorescent light, the most evil light of all?
Twilight: Quantum Sparkles