You would have to learn 6,800 languages in order to speak to all 6 billion people in the world or. . .
If people would adopt the simplified International Language Ido (ee-doh) as their second language then the whole world could speak in one common, culturally neutral language!
Visitors can learn for free how this language works here.
Listen for free to the international music of Radio di Klubo-Ido here.