Has it occurred to anyone else how good magic would be for psychological experimentation?

To start with, imagine you get the consent of your subjects to be Obliviated. Then, you can try exposing the subjects to differing stimuli while they're in exactly the same starting state, and you can precisely and easily measure the effect of whatever change you've made.

Even better, imagine the marketing opportunities. Think of Mr Hat and Cloak's dictionary attack, but with a focus group, and different advertisements for your new product. Show them the ad, then ask them how much they liked it, then Obliviate them again.

Also, you could try to remove the effect of priming on yourself with self-targeted obliviation.

And you could go on 4chan, knowing that what has been seen actually can be unseen, leaving you with only a note saying "Don't look at SqueeHorse" or something.

I really want magic.

I have an idea for an epic maneuver that a wizard could perform as a last resort in certain emergency situations. A severely wounded wizard could, if there is something of much greater utility then his own life on the line, transfigure himself into a healthy version of himself in order to continue the fight. This would be a death sentence, but still worth it if the stakes were high enough.

Then again Harry can already sustain a small transfigured object even in his sleep. Perhaps the most powerful of wizards could sustain a transfiguration on their own body indefinitely. Or... Professor McGonagall said that it would be possible for a child to transfigure themselves into an adult bodily form. Perhaps if the wizard could not sustain an object the size of their own body indefinitely after the emergency situation has passed they could again transfigure themselves into a adolescent, child, or midget form in order to achieve a body with a volume that they could sustain. Unless doing another transfiguration would cause the consequences of the previous transfiguration to be imposed on the new form. Though I don't see why that would necessarily be the case.

This would be a very fragile sort of existence. They would be much weaker due to the constant drain on their magic and incapacitation or anything that dispels the transfiguration would result in death.

Ok. I really don't like the new omake with the ponies.

I understand that Eliezer is trying to criticize overemphasis on peer review. But the bottom line is that peer review is really important: groups of humans who look at something critically are much more likely to notice mistakes and flaws then one will notice by one's self. This is not a trivial point.

It's been awhile since the last update, so here's a scene from the HPMOR in my head.

Hermione offers Harry a Bertie Bott's Every Flavour Bean, warning him that when they say "every flavour" they mean every flavour. The first one that Harry eats is booger-flavoured, and he gets frustrated about the foolish candy-makers, complaining that of all the flavours that he could've gotten, his first bean tasted like boogers. Hermione reminds him that it says "every flavour", so he shouldn't be surprised if it ended up tasting like something nasty. Harry has Hermione list flavours of Bertie Bott's beans that she has eaten, and then goes on a rant:

Out of all possible flavours, every single flavour that Hermione has mentioned is recognizable as something regularly found on or in the human body, and the majority are types of food. Harry tries to explain the concept of flavourspace - the entire set of all possible flavours - and what a skewed understanding of flavourspace wizards must have if "every flavour" beans only draw from the tiny proportion of flavourspace which they already regularly taste. So, yes, he should be surprised that the first bean he ate, which could have taken on any flavour in the vast universe of flavourspace, tasted like something that normally grows just inches from one's taste buds.