After you have watched the movie ‘The Grammar of Happiness’: What does Daniel Everett claim to have discovered the Piraha language and why these discoverings are so controversial?

After you have watched the movie ‘The Grammar of Happiness’,

1. What does Daniel Everett claim to have discovered n the Piraha language and why these discoverings are so controversial?

2. How would you describe/present/explain the two positions on language portrayed in the movie (the one Everett defends, and the Chomskian one)?