English is a tool, just like a piece of technology. Much of the world’s economy is tied up in English-speaking countries and for that reason, English is like a cell phone provider offering the best plan. But if the dollar continues to drop, the most viable option could shift. Mexico and Korea don’t need English to communicate if Korea begins to find it profitable to learn Spanish.
What Will Globalization Do to Languages? A Freakonomics Quorum
Indeed.