im betting someone here already though of and posted something like this, but ill post it anyways....

anyone notice the parrelles of this and when sayid and ben first met

-Sayid releases ben/henry from rouseaus trap (future)
-Ben releases sayid from dharma cell (past)

-Sayid visits ben in cell (future)
-Ben visit sayid in cell (past)

-Ben/Henry is the 'other' when they first meet (future)
-Sayid is the other when he meets young ben (past)

-Sayid is at first nice to ben/henry then changes his tune (when he suspects hes an other) - (Future)
-Sayid is at first nice to ben then changes his tune (when he... shots him) - (Past)

Opposites
-Sayid is mean to ben/henry while hes captivity (future)
-Ben is nice to sayid while hes in captivity (past)