I figured out an exploit to make Horcrux users even more invincible.
A. If you make a Horcrux, you cannot be destroyed unless your Horcrux is destroyed.
B. People can be Horcruxes.
QED if one person turns another into a Horcrux and the other reciprocates then they have foolproof immortality.
This method also has three other benefits over the Dark Lord's attempt, that I can think of. First, it requires only two murders, not seven. Second, it causes twice as many people to become immortal. Third, you'll retain a much larger portion of your soul than you would otherwise, and avoid much of the consequent degeneration.
Quirrelmort is playing on the level below mine, clearly.
you cannot be destroyed
In the sense that your mind and magic will hang around, yes. But your material form can still be destroyed, and material destruction of a Horcrux will destroy its ability to anchor the spirit.
So, if two people are mutual Horcruxen, you can still kill person 1, at which point s/he will become a disembodied spirit dependent on person 2, but will cease to be an effective horcrux for person 2. You can then kill person 2, which will permanently kill both of them.
All you really achieve with mutual Horcruxen is to make your Horcrux portable and fragile (subject to illness, aging, accident, etc).
The next discussion thread is here.
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 85. The previous thread has long passed 500 comments. Comment in the 15th thread until you read chapter 85.
There is now 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.)
The first 5 discussion threads are on the main page under the harry_potter tag. Threads 6 and on (including this one) are in the discussion section using its separate tag system. Also: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.
As a reminder, it’s often useful to start your comment by indicating which chapter you are commenting on.
Spoiler Warning: this thread is full of spoilers. With few exceptions, spoilers for MOR and canon are fair game to post, without warning or rot13. More specifically: