I don't really have one. There were murmurings about how people can or can't die on the Island depending on if they are alive or dead off the Island...I don't really remember but it was interesting at the time. I once thought the Island was a huge submarine. The theory that Desmond's son is Charlie is cute but stupid. I always thought Aaron was more important than he was. Walt as well (although that kind of came true in the epilogue).