Episode 5 - "316"
1. This episode seemed kind of off to me. I feel like the audience was kept out of the loop and that this episode will be put into perspective for us at some point. I don't know... Ms. Hawking's explanations, Jack's willingness to let go of science and just give in to faith after all this time, Kate's behavior, it all seemed to convenient or something. Maybe Jack's hero complex just took over and he forgot the whole science vs. faith debate so he could get back there to save his friends.
2. This time they have the right pilot! Remember that Lapidus was supposed to be the original Oceanic Flight 815 pilot... He had the best line of the night last night... "We're not going to Guam, are we?"
3. What was Ben doing at the marina when he called Jack? Did he get bloody from "visiting" Penny? Maybe his unfinished business was paying Widmore back for killing Alex?

Either that or Ben and Sayid met up. Remember that Sayid said next time he saw Ben it would be very unpleasant.
4. Jack's grandfather Ray... kinda young looking, searching for something, always running, wants to go somewhere where no one can find him. Has he been to the island before? Why were we shown that scene? Just so Jack could get Christian's shoes? I feel like there's more to it...
5. Speaking of the shoes... we now know why Christian had on white tennis shoes in his coffin. Jack didn't see him fit to wear nice shoes to the grave. One last attempt for Jack to disgrace an unfit father. BUT, as Jack said to Ms. Hawking "This is ridiculous." Why would he have to give Locke something that belonged to Christian? Do they really have to be this specific in recreating the flight? Maybe Christian's body was a proxy for the last flight much like Locke's body is the proxy for this flight??? Maybe the shoes (or anything that belonged to Christian) weren't necessary and Jack was just being tested.
6. Hurley had a guitar to recreate what Charlie had on the original flight. Did Charlie appear to Hurley again and convince him to get on the plane?
7. Widmore and the Lamp Post Dharma station... Widmore told Desmond where to find Ms. Hawking so, apparently, he (Widmore) knew where to go to get the information to find the island. If Widmore's been searching for the island why didn't he just go to the Lamp Post Station himself?
8. Kate sure did change her mind quickly. Where is Aaron and why is she going along with Jack? For me, the only acceptable place that Aaron could be is with Claire's mother, who we know is in the LA area getting her Oceanic settlement. So, why did Kate change her mind? Ben planted a seed last week. Last week, at the marina, Ben told Kate "You're not his mother." Those words seem pretty hypocritical of Ben, considering the whole Alex debacle. Ben was never really Alex's father, and the whole situation ended badly because of his selfishness in wanting to raise her. I think in his own tactless way, Ben was imparting this lesson upon Kate in the last episode. He was not-so-subtly letting her know that she shouldn't make the same mistake he did. Perhaps Kate realized she should not be so selfish and therefore handed Aaron off to his actual family. So... in her despair over giving Aaron up, Kate "visited" Jack. Did she get pregnant so that she could recreate having a pregnant woman on the flight?
9. Simon's Butcher shop... Charlie's Dad's name was Simon and he was a butcher. I think I mentioned this before. Funny that Ben's butcher shop was named Simon's Butcher Shop.
10. So, if Jin is working for Dharma in the 1970s (I'm assuming since he's wearing the jumpsuit and driving a sweet van) then perhaps young Charlotte learns Korean because Jin taught it to her then! He would now know that teaching her Korean would serve its purpose when she returns to the island.
11. The Oceanic 6 have changed roles: Sayid is now Kate - Shackled, sullen, and accompanied by some type of law enforcement official. Ben is now Hurley - Or at least he arrives that way. Ben is last to board the plane at the very last second, having just made the flight. Kate is now Claire - Broken, confused, and torn over a decision she just made regarding her child. Then again... maybe they are all proxies like Locke? Maybe the flights always need to have a body in a coffin, a pregnant woman, a fugitive, etc. Maybe the island keeps bringing crashes there with hopes that the next survivors will right whatever is wrong?