mjjmori, 
The hardest thing about #NaNoWriMo is the continual effort of invention.
Even if you know where the narrative starts and where it ends and the big events in between, many more small events are needed to fill 50k words.
It also needs to be engaging with a sense of building tension. This is where one’s craft comes in.
It’s an amazing experience, a humbling fire consuming old mental structures yet powering the creation of new ways of thinking.