Esperanto was designed to be efficient, but it totally failed to take hold.
Right now the most efficient language would probably be English
as far as easy grammar goes: english. it has just so many things going against it. spelling, dissociated vocabulary, a truck-load of vocaublary to learn. on the plus side you have distribution, rather easy grammar.
As an English-second-language speaker, let me tell you: English grammar is NOT easy.
But then again, compared to, say, German, English grammar seemed childishly easy.
and lets not forget, just cause you can speak chinease, doesn't mean visiting will be a breeze. More dialects than America.
Most efficient? Hmmm.. Sign language? Everyone, shut up!![]()
It's all very well wishing for the most efficient language to become universal, but that's not how it works. English is de facto the language destined to become universal. Deal with it.
Horsehockey. Outside of China, practically no one speaks it. Don't confuse number of speakers with global distribution. 90+% of Mandarin speakers will never travel more than 20 km from the hut they were born in.E
Mandarin Chinese the most widely spoken.
In terms of pure information transfer per second, the best way is to couple that African language that replaces consonants with clicks with Morse Code (by carefully timing the clicks). Yes, I'm quoting Dilbert here.
Horsehockey. Outside of China, practically no one speaks it. Don't confuse number of speakers with global distribution. 90+% of Mandarin speakers will never travel more than 20 km from the hut they were born in.