For all the Loopers of the Lost world: We weren't wrong, he just found a Loop Hole! Ever since the season ended and the incident occurred I haven't heard the end of it. Everyone I know saying, "Jack did it! He altered the timeline. Everything is Reset. You were wrong so stuff a string theory in your pie-hole!" I for my part am laughing because Alternate-Timeline Junkies will never get what we Loopers are saying. So I'll recap my Take on Lost so far, this after making extensive diagrams to map it all out.
In the Beginning there was a Loop well orchestrated by Jacob and it consisted of this plus some:
*Jacob and Esau sat on an Island watching the Black Rock arrive Esau claimed he would eventually kill him, but Jacob didn't care. -> *Time went by and then Desmond "forgot" to push the button leading to the crash of 815. -> *Locke turns the FDW and -> back to the beach with Jacob and Esau.
This Original Loop may have been boring but it kept the Island and it's inhabitants alive since the beginning of time.
Now for the "You Found a LOOP-HOLE" Timeline, which we have been witnessing since season 1 in some form or another. This timeline is orchestrated by Esau after reliving Jacobs timeline for an eternity:
*Jacob and Esau sat on an Island watching the Black Rock arrive Esau claimed he would eventually kill him, but Jacob didn't care. -> *Time went by and then Desmond "forgot" to push the button leading to the crash of 815. -> Ben "mistakenly" turns the FDW. -> *During a series of flashes Esau plants seeds leading to the designation of Locke as the Leader of the Island. ->*After the series of flashes Locke turns the FDW to fix Bens "mistake". -> *"Locke" leads the O6 back to the Island on Ajira 316. -> During the flight Jack, Kate, Hurley and Sayid are sent to 1977 because of the "Proxy Effect". -> *Jack throws Jughead's detonator into the Swan magnet field and Juliet detonates it from the bottom. (This creates two separate paths)
1. -> Oceanic 815 arrives at LAX, but before it does 2. -> A Bright Light flashes on the plane and Jack, Kate, Hurley, Sayid, Sawyer, Jin and Sun (possibly Locke) disappear from the plane, and are now on the Island in 2008.
Sorry if that all is confusing, but String Theory was created to cause migranes.
Now on the Island in 2008: Esau has just led Ben to kill Jacob. Jacob falls into the fire as a sacrifice to the Island and whatever force was inside him is transferred to Jack. Now the final war begins: Jacob verse Esau... Jack verse Locke... from here on out there is no preset timeline... the events occurring now have never happened before, and thus no one is safe from Death. Whatever happens, happens....