Lovely thought. It may be difficult to indeed have one language as many top countries may not agree on which language should be superior. Maybe English, what about French, and China would also want chinese to win the contest.

Notwithstanding I see technology making this happen. There are already apps that do translations in voice. I am seeing a future where a one language world will be supported by technology wearables that translates in real time. Like an earpiece that does translations that one will hardly notice a lag