that is a point for me, how different people managed sound produced by their own month..
latins did it better for me, now ita-spa-south america-greek-russian could talk the same language.
What about strange people with strange languages as arabians?? Are they aliens? or simply a climate track did they unable forever to talk as we do? And what about eglish-german-scandinavian-inuit? Same climate issue? Who knows?