A while ago a commenter said that the reason I wasn't enjoying Lost as much this year is that all my theories proved wrong. Now, not only do I not remember most of my own theories, I still don't think we've gotten far enough to know which theories are right or wrong (including the writers).
However, here are a few more ideas (none of which are my own) that are worth discussing:
- The guy with the tumor on his backbone - could it be Locke? And would removing the tumor put him back in a wheelchair?
- Are The Others sterile? Is that why they steal children and need a fertility doctor? And if so, is the reason they separated Jack from Sawyer and Kate that they, not he, is their real interest? Did they put Kate in the cute dress opposite Sawyer so that the two of them would REALLY fall in love and get "at it"?
- Does the fertility doctor on the island have any connection to Sun becoming pregnant when she was previously unable too?