Just looking over things when something came to me disturbingly that i find both brilliant and annoying.
The flash forward at the end of season 3 is the end of the show and we have enetered david Lynch style territory. Hence the last three seasons will fill in the missing pieces between then and what we saw. Jack is calm in the flashforward when he visits Hurley but erratic in the flashforward with Kate.
Jack has no beard in the flashfoorward with hulrey but mentions growing one. Lo & behold he has a beard in the flashforward with kate.
Jack has no intention of returning when visiting Hurley but he has to get back in the flashforward with kate.
Maybe that is why the episode was called the begginning of the end. As we saw the end in the s3 finale and now the opener of s4 is the beginning of the end that was shown.
Now for an interesting poin. If you remember Jack about to jump off the bridge. Didnt the woman in the car crash resemble Juliets sister. She has a child with her who was about eight. The child was 2 in 2004 which if you go six years on you get 2010 the end of Lost as a series. It ends in current time as we see it.
When we were young nobody died
Nobody got Older
the toughest kid in your street
could always be bought over