I kind of wish I had a better visual imagination or spatial awareness. I tend to have trouble keeping track of the environment in novels. As such, even after going back to the story, I'm not entirely sure where exactly Harry is.
The reason I bring this up is that we are told, explicitly, that the Death Eaters will kill Harry if he stops pointing his wand toward the floor.
But 1 G gravity is FAST, and they might be too surprised to react in time if Harry suddenly falls THROUGH the floor. Which may or may not be an option available to him, depending on his location, by using partial transfiguration to turn a thin section of the floor around him into sand.
1 G is a high acceleration, but it's not that fast initially. That gives him about half a second before his head falls below ground level (0.64s to fall 2m).
This is a new thread to discuss Eliezer Yudkowsky’s Harry Potter and the Methods of Rationality and anything related to it. This thread is intended for discussing chapter 113.
There is a site dedicated to the story at hpmor.com, which is now the place to go to find the authors notes and all sorts of other goodies. AdeleneDawner has kept an archive of Author’s Notes. (This goes up to the notes for chapter 76, and is now not updating. The authors notes from chapter 77 onwards are on hpmor.com.)
IMPORTANT -- From the end of chapter 113: