Quote Originally Posted by Loony BoB View Post
There have been some, though, such as the guy pointing out that the roof needed fixing, and then later figuring out how to create fire via the magnet & lightning (or something).
That had nothing to do with learning how to live on the island. That was Desmond trying to learn about his psychic powers. He told them to fix the roof because he KNEW it was going to rain. He also knew it was going to lightning, so he created a lightning rod so Claire and Aaron wouldn't DIE.