Something like that... there's not a whole lot of logic necessarily inherent in the whole "vampires are y so they fear/are harmed by x" stuff, and I've always thought that vampires who were only harmed by actual physical damage were more logical. As far as vampires being logical goes, anyway.
The way I figure it, vampires are
magic, and thus not operating entirely within the laws of physics. This has upsides, like being able to take liberties with conservation of energy, and downsides, like being subject to damage from things that are harmless to humans. For example, in my story that I'll probably never get written, vampires are magically associated with evil and disease. As a consequence, they are susceptible to things that represent Good, like a crucifix, a Buddhist scripture talisman, or the sun. They're also susceptible to silver, because of its association with purity; so while lead and copper alloy bullets barely register for them, silver bullets hurt. This also explains, in my world, why vampires are said to have no reflection--back in the day when mirrors were backed with silver,
they didn't. Modern aluminum-backed mirrors reflect them just fine. (So what exactly is happening with the light that does and doesn't go through the vampire depending on how you look at it? It's magic, I ain't gotta explain shit!)
As far as wood goes, it's my understanding that in the old folklore, the stake through the heart wasn't to kill the vampire (something that may not even be possible according to the legends) but to physically
nail it to the ground so it couldn't get out of the grave to terrorize the village any more.
Anyway, I just wanted to suggest that with a little thought, you can put together something that's recognizably a pop culture vampire but still makes at least a little bit of sense.
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