Even with good instruction, it is fiendishly difficult to learn any new language well, at least after about the age of 15. While vilified in certain quarters as threatening the future of the English language in America, most immigrants who actually try to improve their English skills here in the United States find that they have trouble communicating effectively even with doctors or their children’s schoolteachers.
Yet the going idea among linguists and anthropologists is that we must keep as many languages alive as possible, and that the death of each one is another step on a treadmill toward humankind’s cultural oblivion. This accounted for the melancholy tone, for example, of the obituaries for the Eyak language of southern Alaska last year when its last speaker died.
That death did mean, to be sure, that no one will again use the word demexch, which refers to a soft spot in the ice where it is good to fish. Never again will we hear the word 'ał for an evergreen branch, a word whose final sound is a whistling past the sides of the tongue that sounds like wind passing through just such a branch. And behind this small death is a larger context. Linguistic death is proceeding more rapidly even than species attrition. According to one estimate, a hundred years from now the 6,000 languages in use today will likely dwindle to 600. The question, though, is whether this is a problem.