From his research Chan concluded that English is not only the most powerful language overall, but also the most powerful language across the five categories. The second most powerful language, Mandarin, was deemed to be only half as powerful as English because, although it is the language spoken by the most people in the world, it is not spoken widely outside of Mandarin nations. Other languages in the top ten may be strong in one or two categories (such as French for diplomacy or Hindi in the knowledge and media category), but none have the equivalent across-the-board dominance of English.