Yesterday I listened to a couple more Freakonomics "Earth 2.0" podcasts -- this time centered on the optimal language situation for the planet. Most folks seemed to agree on a basic, easy-to-learn Common language combined with a limitless number of 'in-group' languages.
I also learned about Esperanto, and I'm immediately taken by the idea; I think I might sign up for the Duolingo course...once I clear off a couple of other online courses, OF COURSE. >.>
@literorrery Hah! I am not surprised at all. :D Are there resources beyond Duolingo you would recommend?