The Internet seems to have just arrived, so how can we possibly imagine what will replace it? In truth, early versions of the Net have been around since the 1960s and '70s, but only after the mid-1990s did it begin to have a serious public impact. Since 1994, the population of users has grown from about 13 million to more than 300 million around the world. About half are in North America, and most--despite significant progress in rolling out high-speed access--still reach the Internet by way of the public telephone network.
What will the Internet be like 20 years from now?
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