I don't reserve geek for scientific/technical interests/pursuits. To me, it represents a heightened, intense (possibly obsessive or borderline so) interest and knowledge in any particular subject, be it scientific/technical, artistic, cultural (including pop culture), etc. As much as I shun labels, "geek" is one I paint myself with using a broad brush. :-)
This pretty much nails my definition: intense/obsessive interest or knowledge in a subject area. Computer geek, math geek, drama geek, etc.
Now, that said, you don't usually talk much about the tractor pull geek, or the cotillions geek, so perhaps there's something else there that's less defineable.
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Now, that said, you don't usually talk much about the tractor pull geek, or the cotillions geek, so perhaps there's something else there that's less defineable.
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And, yes, I do know some cotillion geeks. Or, at least, costume and dance (at the same time) geeks. I've got a friend who's a history geek.