Okay, I’m spending too much time on this, but… after reading the comments on my post last night and thinking about it more, here’s how I think they should have ended the episode:
Sayid, while interrogating/torturing the Guy Who May or May Not be an Other, finds out something equally ambiguous and creepy from him—something that makes Sayid pause, sit back, uncertain of what to do next. Meanwhile, Jack and Locke are in the middle of their confrontation, just as it played out before, and while Locke is in his haste trying to enter the number, the timer reaches zero… and cut to black.
That’s right, a cliffhanger ending. I’d be fine with that, I think it would much better than the cop-out hieroglyphics. It would have been a stronger ending. Keep all of Sayid’s flashback, that’s fine, just end on zero and forget the goofy speech with Charlie on the beach.
They totally need to hire me as a writer. :)