When the world talks about science, culture, economy or politics, it speaks English. English speakers don’t really need a second language at all. So, what’s the use of a second language when the first one is enough? English speakers can look for the luxury items: cultural and linguistic enrichment. In this article, I will evaluate the world’s major languages for their usefulness to English speakers, according to three different criteria:

1. Demographics: Opportunity to use the language actively: the number of native and second language speakers, and the chances of communicating with them in this language: use as a lingua franca. It’s not simply a matter of numbers. Mandarin is by far the most spoken language but it is concentrated in one country, China, and that reduces the impact. In the case of Hindi, educated speakers will very likely also speak English, so the opportunity to speak to people in Hindi is greatly reduced.
2. Personal Impact: This subjective criterion looks at the impact on the learner. How does this language study increase the learner’s own sophistication regarding languages, whether English or another, third language? How does this language make the learner a more culturally literate person?
3. Business factors: How will this language open new business and commercial opportunities?

Criterion I. Demographics: I begin with demographics because this is the criterion that first comes to mind in such a discussion. However, this factor only weighs 40 percent in the ratings, and certain entries here, such as Italian, Swahili and Turkish, will only become understandable when one sees the tables that follow.

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