I thought about writing on this topic for some time, I think it started with the movie Independence Day. You know, the movie where aliens invade the earth and destroy some major cities and the like. They defeat the aliens by uploading a computer virus to the alien mainframe which of course is compatible to the virus.
Thats pretty lucky that aliens with advanced technology still use some old mac from earth to power their shields. You find more of those stories at living the geek life, its a recommended read for everyone who is in for a good laugh.

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