Ideally he has been obliviated of that part of the conversation too. "the most important part of any secret is the knowledge that a secret exists", etc.
In the chapter, yes, that's presumably true. I was replying to cousin_it's alternative plan, which specified no obliviation.
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 120.
Plans for next chapter release:
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.)