There are many questions here that ask about how GR comes out of string theory. For example, this, that, this also, that also, even this, even that, (finally) and again. And almost all of the comments on those posts are "Related: ...", "Possible Duplicate: ...", "Duplicate: ..." (of course if you pick any Question A and Question B out of the 7 questions, then Post A would have a comment "Possible Duplicate: B" and B would have a comment "Possible Duplicate: A", or "Related: ..." or "Duplicate: ..." or "You cheater! Didn't you check this question: ..." or whatever.) . Maybe this question should be tagged as faq? .
UPDATE: Full list here: FAQ questions (on the main site)