I first heard about throughlines (in fiction) last year (2012). Today, I am focusing on my own, making sure that the unraveling of story is perfectly paced. To me it’s about keeping a story connection going, a character’s development; managing the revealing of information and then tying it up (or not) at the right time and place. It’s not an easy thing to understand but it’s important, that much I know.
The other thing I’m thinking of is Muriel Spark’s sentiment of never apologise, never explain.