The timeline and events are clearly different than the plane crash timeline:
- Jack had his appendix out at the age of 7 instead of on the Island.
- Jack doesn't have a sedan. Or did he always have that truck?
- Jack and his wife never had a son in the plane crash timeline.
- Was Jack on better terms with his dad?
- ... Someone else is coming to the Island?! WHA?! NOW?!?! ... Wait ... is it Aaron? Or Ji Yeon?
- Was David listening to Geronimo Jackson or Driveshaft?
- Claire has clearly gone the way of Rousseau. ... No ... I'm going to say that she has the "sickness" and/or has been brainwashed by Christian's reanimated corpse and Smokey in a corporeal form.
- Hurley remembers Shannon?! How long has it been?!
- Dogon off the Island?! WHOA!
- ... JIN! HOW COULD YOU?!?!
Alice in Wonderland
References to "Alice" have been made throughout the show, like the Looking Glass station. In this episode, David is reading "The Annotated Alice" and the spare key to Jack's ex-wife's house is under a rabbit. In "Alice's Adventures in Wonderland", Alice got to Wonderland by following the White Rabbit.
Jack's ex-wife is at the 23rd house on whatever street she lives on.
108 degrees is the desired angle on the gear at the lighthouse.
Jack is at degree 23 on the gear at the lighthouse.