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perhaps research skin chemistry?
Authored by: kirkmc on Apr 29, '13 01:01:30PM

How much do those people, with ten-year old keyboards, type? I write full-time, and I type fast. I write about a a few hundred thousand words a year, probably, between articles, emails and the rest.

Mac OS X Hints editor - Macworld senior contributor

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perhaps research skin chemistry?
Authored by: sr105 on Apr 29, '13 01:21:13PM

I'm a programmer and I assume that there's some average level of typing that we all do. I have seen keyboards that look pristine (like mine) after years. I've known others to wear away the paint on the keys in under a year. I always figure it must have something to do with skin. If you've ever seen a laptop screen with a faint visible outline of the keyboard's center keys, you've seen the effects of the user's skin oils transferred to the keys and then chemically etching the screen. I think it's worth a look. Or pehaps, people who rub away the markings have drier skin than most and the lack of oil aids in the removal? It's all speculation.

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