So, I was writing today, and there's (tentatively) a scene in tMiaHM Ch7 that takes place in Luna's bathroom, and while writing this, I had a moment of indescribable pain.
Navypony is a submariner in the US Navy, but he earns his name for his understanding and love of ships and shipping. Yes, that's shipping ponies.
So, chapter four of 'The Moon is a Harsh Mistress' is up as of... now. Luna is still Luna and Nightlight is still Nightlight. Keep in mind that this is still the same evening as chapter one, and Luna hasn't really learned anything in the last six hours. As I've mentioned, she's going to get worse before she can get better; people (and ponies) don't radically alter their world-views overnight. Just saying.