If you have a blind girl stuck in a cave in a new world for a day or two, no one else around except a stranger who's also stuck in the cave, what do you do? Why, have them talk and talk and talk and talk, of course. What else are you going to do? Say, "And they were the most boring days of her life, the end." Oh no, not "the end." "And then, the next day..." That's what you do. Yeah. But think of all the words you would waste, doing it like that! Why, thousands, down the drain! And all that interesting, easy-to-write dialogue, just gone, poof! It'd be like... like drowning a kitten. Yeah. A perfectly good, cute kitten, just because you don't want it. A valuable, word-count producing kitten. So sad.
NaNoWriMo is... interesting. Especially when you've got about one known plot element left, after the current scene, and you have certain mysteries set up, and no answers to them yet. But it is good dialogue. Really!