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""He was wearing all cotton, which is the worst fabric for cold, wet weather. The weather just got the best of him," reads an official statement by Alaska State Troopers about the death of a hiker there in 2005. This is how and why cotton can kill you. "

"Most people probably have an idea about what a hacker looks like. The image of someone sitting alone at a computer, with their face obscured by a hoodie, staring intently at lines of code in which their particular brand of crime or mischief is rooted, has become widely associated with hackers. You can confirm this by simply doing an image search for "hackers" and seeing what you come up with"

"Half a billion people around the world spend more than 20 hours a week "wearing" avatars, that is, using digital representations of themselves. Did you know that a virtual representation of a politician could be more convincing than the politician himself? That your heart beats just as fast when your girlfriend winks at you from your computer screen as when she walks into the room? That if you make your onscreen surrogate mimic your friend's head movements, he's more likely to do what you say? Within three years, many online interactions will not simply involve passages of text typed on a keyboard but will instead be rich exchanges involving sophisticated representations of ourselves. Those digital beings are called avatars, and today at least half a billion people around the world are routinely socializing through them over the Internet, for example in online games."