I wished Esperanto was a global language.
Why?
1) Its neutral and independent of who is the superpower for now(In ancient times, Latin was the global language because of Roman Empire, in 18th and 19th century French and English because of the British Empire, now its English because of the US, hope the next won't be China or our future generations - not the case if Dubya decides to launch a nuclear war: cockroaches won't be able to learn languages - will have to lick the boots of the chinese "communist" party and learn that complicated language

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2) It was designed mixing elements of all languages. This way it may be easier for everyone to learn.
3) Avoid stuff like "american posers" and cultural imperialism, like for example those third world guys with U.S flag T-shirts that speak few words of English, goes to Halloweens and hear only U.S. musics, and still dare to think they are leet.
4) Shows that no one has the right to impose his language to others just because they think they will "rule" the world forever. Empires rise and fall, mankind continues(And the more the citizens of the existing superpower are conscious of that, less will be the impact of the inevitable decline of the superpower, sooner or later, on their lives)
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In my opinion, English is not a very difficult language to learn, compared to German or French, for example.
Its main difficulty resides mainly in the ambiguous meaning of certain words, that have multiple translations with different meanings on other languages.