what's the silver?
The only plot-significant things that have been described as silver are Fawkes, the Time-Turner, Dumbledore's beard, Lucius Malfoy's cane, and Patronus charms. I think we can safely eliminate Dumbledore's beard and Malfoy's cane. If it is in the future, I would have dismissed the time-turner before the past 2 chapters, but not anymore.
(I still believe it likely describes the attack on the Potters. Edit: I no longer believe this.)
In canon, it's also Unicorn blood.
It could also be Harry using Godric Gryffindor's sword to murder someone (Bellatrix?) in order to power the Summon Death ritual.
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 90. The previous thread has passed 750 comments.
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, 16, 17,18,19.
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: