Why was Sayid on the plane? Because the agents told him Nadia was in the U.S., right?
Sayid even bought a tie right before the plane took off because he wanted to look nice in front of her. Why, then, does Sayid tell Danielle in SOLITARY that "she is dead"? Is this an inconsistency? Or did he somehow learn in between buying the tie and crashing that she had died? And why would he believe this? How are the writers going to pull out of this one?
