Reasons this episode (and as a result, the show as a whole) were awful:
1. A wizard did it. Literally. Knotty Mommy Hair was shown to be a witch casting a spell to make Jacob magical like her, and the source of their power is a magic cave with a glowy golden light that permeates us all. (I bet the wine she gave him was filled with midichlorians!)
2. A wizard did it. This bears repeating because of how fucking lame it is.
3. Instead of actually answering anything at all, they just transferred all the questions to Knotty Mommy Hair the Witch and her Magic Cave.
Nothing was answered. Not even Smokey's fucking name.
4. A wizard fucking did it.
5. The reason nothing was answered? Once again, it's because of Knotty Mommy Hair and her Magic Cave: "All questions just lead to more questions, so stop asking! Nyeh! And if you can't tell, I'm actually talking to you, audience, not MommyI'mAboutToMurder!"
6.
A. Wizard. Fucking. Did. It.
7. Jacob turns out to a mentally retarded simpleton who's explanation to Richard bears no semblance to anything that happened in this episode. Smokey is the one who's pro-humanity (though distrustful of them) and Jacob is the one who wants nothing to do with them, which doesn't bear any semblance to anything we've seen in the series to date. Smokey's "fate worse than death" basically just made him into a superpowered version of what he was to begin with (ooh, so horrible for him... now he's still stuck on the island AND has super powers! sob sob!). And the boat-crashed survivors were apparently suprageniuses extraordinaire compared to the Dharma Initiative in that they not only discovered all these sources through primitive techniques, but mastered the principles of how to use it.
8. Oh, and a WIZARD FUCKING DID IT. Arrrgggghhhh.