IF DAVID NEVER LOST HIS HEAD YOU GOT A DIFFERENT MOVIE

This one little deliberate incident of David losing his head allows the whole movie to go into a certain direction. REVERSE THAT THINKING. If he didnt lose his head, what is his prime directive? We know he would pilot an Engineer ship back to earth, with Goo and we got a whole new movie concept here. Losing his head is a game changer because he now has to give in to SHAW. He who controls Davids head...controls the ship, the mission and the story line