Eliezer has been accused of delusions of grandeur for his belief in his own importance. But if Eliezer is guilty of such delusions then so am I and, I suspect, are many of you.

Consider two beliefs:

1. The next millennium will be the most critical in mankind’s existence because in most of the Everett branches arising out of today mankind will go extinct or start spreading through the stars.

2. Eliezer’s work on friendly AI makes him the most significant determinant of our fate in (1).

Let 10^N represent the average across our future Everett branches of the total number of sentient beings whose ancestors arose on earth. If Eliezer holds beliefs (1) and (2) then he considers himself the most important of these beings and the probability of this happening by chance is 1 in 10^N. But if (1) holds then the rest of us are extremely important as well through how our voting, buying, contributing, writing… influences mankind’s fate. Let say that makes most of us one of the trillion most important beings who will ever exist. The probability of this happening by chance is 1 in 10^(N-12).

If N is at least 18 it’s hard to think of a rational criteria under which believing you are 1 in 10^N is delusional whereas thinking you are 1 in 10^(N-12) is not.

Do we have any evidence that someone like Lucius Malfoy would not be about as homophobic as the average medieval baron

Yes, the beginning of Chapter 42 suggests this very much!

There we are told that some Wizards[*], at least young ones, find the idea that Muggles hate homosexuality so surprsing that they expected it to be anti-Muggle propaganda. And not just any anti-Muggle propaganda, but Death-Eater propaganda. The implication is that Death Eaters (and Lucius Malfoy is one) have been spreading the word among Wizards that Muggles hate homosexuality. It would be difficult to do this if these Death Eaters hated homosexuality themselves!

[*] When capitalised, I use this word to mean both witches and wizards, as in ‘Wizarding Britain’, ‘Azkaban, the Wizard prison’, etc.

I know it's by far the more common in the real world, but MoR!Hogwarts seems to differ significantly in the politics of gender and sexuality from most of real life, and I wanted to investigate how those differences would affect this situation. Since I don't yet have a clear theory of mind regarding why rape occurs or is gender-biased, I was trying to gather explanations from the rest of the peanut gallery.

I just had a thought WRT Harry's controversial apology to Hermione in Chapter 42. This is the Harry that lectured McGonagall on the Planning Fallacy, while demonstrating that he really does assume a worst-case scenario (insisting on purchasing a magical first aid kit just in case one of his fellow students ended up maimed and dying in front of him). I think it's entirely plausible that he could have spent the whole time Hermione was falling imagining that maybe he'd forgotten to stir the ground hen's teeth (or whatever) into the Feather Fall potion six times, or that it wasn't quite a three-quarters Moon when he started, or that a sudden gust of wind might impale her on the spikes of a wrought-iron balcony fence, or blow her into the Forbidden Forest or whatever other horrific Murphy's Law scenarios his all-too-imaginative mind could concoct, right up until her feet touched the ground.

Also, from the descriptions it looks like he was fighting this battle in ColdDarkLordHarry mode, so in addition to the above, he might even have been worrying that his Dark Side had subconsciously arranged things (such as a Potions failure, or just the situation of random danger with the Feather Fall potion as a false guarantor of safety) in a way that would bring his Intent To Kill to bear. It might even be revealed later that, for just a moment, his Dark Side produced a desire that she actually die, and that's what's making him feel so guilty.

Then, he would have spent the time until she came to meet him imagining that she would have been imagining the same things as an expression of his Planning Fallacy-based ur-pessimism combined with his tendency to try to model other people's minds, i.e., in this case, in the most pessimistic way possible. So, by the time he sees her, he's got himself expecting her to hate, hate, HATE him, and since he cares about her he really doesn't want that. And for her part, she's got him apologizing and willing to let her avenge herself on him, so why stop him now?

Some of the comments here have pointed out Hermione's strong sense of Justice and Fairness as an objection to her behavior in this scene. Maybe we're seeing some Unintended Consequences to Harry's "get Hermione and Draco to work together" plot. For Draco to reflexively try to catch Hermione is (I think) a major change in his character. This is a boy who casually expressed his intention to rape Luna Lovegood to someone he'd just met, assuming that boy's stated "intention" to murder her was equally casual, and equally serious. Major, major misogyny here.

So, for Draco to try to save Hermione, and have difficulty letting her go even as what's left of his Pureblood conditioning is railing at him, and Hermione herself is begging him to drop her so he can beat Harry, is a huge change in his character. If we grant that so much of Hermione's[1] sensibilities have rubbed off on Draco during their collaboration, it's not too much of a stretch to imagine that some osmosis has gone the other way. Hermione's spent the last few months of warfare learning the art of Devious Plotting, and since her alliance with Draco, would be getting lessons from a master. So, if we accept the changes to Draco's character, it's not too implausible IMO that Hermione might have become less of a "goody-goody" by now, and be willing to let Harry grovel, and even enjoy it a bit.

1. I'm assuming it would be Hermione's values rubbing off on Draco and not Harry's, since in the portrayed encounters Harry has been concealing his Enlightenment sentiments from Draco to keep him in the Bayesian Conspiracy. "Slytherin! Just Kidding! Ravenclaw!"

Is it the author's opinion that the creation of house elves was a terribly evil deed?

It had been, but...

Even if we accept that creating conscious entities which are forced by means of their preferences to do menial work is wrong, it would seem to be better to create them, than to force those who don't enjoy such work to do it.

...is a powerful argument I had never considered.

The real answer, of course, is that Hogwarts is shaped after British public schools, and it inherited gender-based dorms just like it did the four-house system.

A possible justification/rationalisation is that there are drastically different dynamics between a sexual attraction that involves a vast majority of the population, and one that involves a minority: heterosexual affections are much more likely to be potentially returned, compared to homosexual ones. Hence, while the occasional homosexual affair will sprout up in an all-male/all-female dorm, a mixed teenage dormitory would be completely overrun with drama, awkwardness, and unpleasant sounds and smells.

Draco lets her go while she casts Leviosa on herself,

Does that work? I know Voldemort can fly but I got the impression that was something a bit more advanced than Winguardium Leviosa. Something off the order of an enhanced continuous form of apparation that requires huge amounts of concentration and skill to maintain. It would come with an advanced understanding of the mechanics of magical transport, along the same lines of Harry's advanced understanding allowing him to partially transfigure objects.

Still, reactionless flight is such a trivial matter in the Potterverse

I know brooms can fly but have we been given reason to believe that reactionless flight is trivial in the 'first years can do it' sense? It sounds like the sort of thing Harry would have tested but I could have forgotten him doing so. If self casting doesn't work then try casting winguardium leviosa on a heavy object while yourself floating on a raft in a tub, measuring the displacement of water...

about Pettigrew and the others being animagi

Are we sure that, in MoR, they were?

Brooms are illegal magical artifacts, Wingardium Leviosa presumably too impractical because because it offers neither sufficient mobility to dodge nor allows for using cover so extended use (as opposed to using it just to pass obstacles) would make the levitated person an easy target (Harry can still cast with one hand while hanging on with the other and his feet), and would soon exhaust the levitating person as well. Besides they would be giving up their two to one advantage.

One thing I do find myself wondering about this latest chapter is why neither of these two Most Brilliant Students (Hermione and Draco) seem to have thought of "Accio Broom!" or "Wingardiam Leviosa" instead of pursuing Harry with Gecko Gloves. If one or both of them is flying while Harry's got his hands stuck to a wall, they win. Also, since they've been fighting Chaos soldiers using hover charms to move while using ball bearings to make the floors impassable, they should have at least tried to adapt and use that strategy (granting that they can't use brooms or other means of flight due to rules of engagement or some such) when facing Harry on the roof. They need to work on their OODA Loops. ;)