Yesterday I was in Hong Kong all day, and today I've just been sitting in the flat in Taipei browsing the net and generally not doing any work. I hit the 20–30k writing barrier; I get that far, then anything that's wrong with the plot comes screaming out, and I have to take a step back and figure out what the book should really be about. It happened with Stealing Light, and it happened with Against Gravity and the one before that too. Basically, you get so far in, and then you know what is or isn't working.
So I'm taking a step back, doing some relaxing and reading (new Neal Stephenson! Yay!), and trying to not think about the third Dakota Merrick book too hard just yet. At least, not until Saturday or Sunday, when I can come at it again with a clearer mind.