hypnos1620

Would you consider yourself fluent in Pirahã? Does the language come to you as naturally as when you are speaking English, or do you sometimes struggle with finding the right way to express yourself? How does your knowledge of other Amazonian languages you've studied compare against your knowledge of Pirahã?

This is very specific, but how is the lateralized apical-alveolar/sublaminal-labial double flap (the one where you stick out your tongue) used in speech? Is it an allophone for a specific phoneme, a substitute for prosodic features like whistling, or something else entirely?