Michael Erard explains why English is fast becoming a language "we may not even understand":
Thanks to globalization, the Allied victories in World War II, and American leadership in science and technology, English has become so successful across the world that it's escaping the boundaries of what we think it should be. In part, this is because there are fewer of us: By 2020, native speakers will make up only 15 percent of the estimated 2 billion people who will be using or learning the language. Already, most conversations in English are between nonnative speakers who use it as a lingua franca.
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