During the season 5 episode "Follow the Leader", Sun approached Richard and fake Locke with a photo of her friends (Hurley, Jack, Kate) from 1977. She asked Richard if he remembered seeing them in that year to which Richard replied that he remembered very well because he watched them all die.
However, season 6 has provided us with basically two timelines: the original and flash-sideways where Hurley, Jack, Kate, etc. are alive and well in both. How is it possible that Richard saw them all die in 1977, yet they are alive now? Explanations please!!Read more >