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YMMV: Harry Potter and the Methods of Rationality


  • Acceptable Targets: Two jabs at Atlas Shrugged.
  • Alternative Character Interpretation: If Harry's theory about how Fred and George pranked Rita Skeeter is correct then the lovable tricksters could be seen as mind-raping someone with a false memory charm to destroy their career, thereby exposing them to the ire of very dangerous people. Harsher in Hindsight much?
  • Big Lipped Alligator Moment: Some of the many shout outs to the authors' preferred literature may veer into this for some readers, even if they do usually illustrate some point or other. While Harry and Dumbledore can be forgiven for this in light of their interest in muggle literature, readers may find it a little immersion-breaking when Malfoy or Quirrel start referencing transparent expies of Death Note or Fullmetal Alchemist.
  • Cargo Ship:
    God he loved his Time-Turner and someday, when he was old enough, they would get married.
    • Don't forget:
    Harry was in love. It would be a three-way wedding: him, the Time-Turner, and Professor Quirrell.
  • Crack Pairing: Sirius Black/Peter Pettigrew. Unsurprisingly, it apparently didn't end well.
  • Draco in Leather Pants: At first, it appears this is going to be the case, with Draco and Harry getting along pretty well, but then Harry jokes about committing murder, and Draco not only isn't opposed to it, but doesn't understand that it was a joke. He then says he's gonna rape Luna Lovegood someday. Draco in Leather Pants quickly fades.
    • Chapter 72 shows that he is on his way to a Heel-Face Turn
    • Chapter 28 takes a jab at the fandom's tendency to do this to Snape.
    • And chapter 77 delivers the finishing blow to his fanon sexiness.
    • Lampshaded when Daphne Greengrass says Lucius Malfoy would skin his son alive and turn him into trousers if he heard him talking against blood purism.
    "Draco Malfoy smiled, metallic robes gleaming in the light of his full corporeal Patronus; it was a smile both arrogant and dangerous, like being turned into a pair of leather pants was beneath his concerns."
  • Fan Nickname: Quirrelmort, Harryzer.
  • Genius Bonus:
    • Chapter 17, in which Harry attempts to factor the product of two prime numbers using the Time Turner? (More generally, he comes up with a method to solve NP-complete problems, that is, problems where you can check a solution quickly, but finding that solution requires searching a gigantic solution space.)
    • Chapter 4, with its off-hand mention of how someone could make a lot of money by exploiting the difference in the relative prices of silver and gold in the Muggle and Wizarding economies. (Buy gold from wizards, sell it to Muggles, use the money to buy silver from Muggles, sell the silver to wizards, and end up with more money than you started with. Or, if the imbalance is in the other direction, buy silver from wizards and sell it to Muggles for gold.)
    • In chapter 26, Harry and Quirrell have a discussion in a scrying-proof location called Mary's room.
    • The "Slytherin System" described in chapter 63 is a version of onion routing, the anonymous networking technique used by Tor.
    • For those paying attention, the realization that the Pioneer Plaque was turned into a horcrux is the reason that Quirrel is dying - he has separated out his life essence over such a large distance that light speed is becoming a real problem. This is obvious pretty early on for those who are familiar with relativity, and when he (much later) reads about Muggle physics, Quirrel realizes his mistake. That the starry field is also a view from around the horcrux - and thus, Pioneer, far out in space - is also implied, but never stated outright.
  • Growing the Beard: As the (edited) first chapter puts it: "This fic is widely considered to have really hit its stride starting at around Chapter 5. If you still don't like it after Chapter 10, give up."
  • Harsher in Hindsight:
    McGonagall: What sort of contingency do you imagine this kit might prepare you for, young man?
    Harry: One of my classmates gets bitten by a horrible monster, and as I scrabble frantically in my mokeskin pouch for something that could help her, she looks at me sadly and with her last breath says, 'Why weren't you prepared?' And then she dies, and I know as her eyes close that she won't ever forgive me -
    • As of chapter 89, it turns out that kit didn't help Harry as much as he'd been hoping. Mainly due to the timing of his arrival.
  • Ho Yay:
    • Did you know that Draco is "courting" Harry? Everyone in Slytherin does.
    • Also:
    Harry was in love. It would be a three-way wedding: him, the Time-Turner, and Professor Quirrell.
    • Also in-universe: first action the Comed-Tea gets: "BOY-WHO-LIVED GETS DRACO MALFOY PREGNANT". The Quibbler, of course.
    • "Romantic? They're both boys!" (Explanation: It turns out that an apparent majority of the young witch population are Yaoi Fangirls, which Hermione has a hard time grasping).
  • Hype Backlash: Some find the fic somewhat pretentious, and some readers interpret the narrative of Snape and Lily's relationship to be objectionable.
  • Love It or Hate It: Read the reviews (and their respective comments) on TV Tropes, and see for yourself just how polarizing the story is.
  • Magnificent Bastard: Draco took lessons on how to be one, but so far he's only a beginner. The true Magnificent Bastard of this fanfic is, of course the one and only Professor Quirrell/Lord Voldemort. Without spoiling anything:
  • Marty Stu: We have a heroic Marty Stu and a villainous Marty Stu. Whether they balance out or add together is up to the reader.
  • Memetic Mutation: Chapter 13: YOU HAVE LOST THE GAME.
  • Misaimed Fandom:
    • The author, like a lot of readers, seems to have missed the point of Ron, and "sees no reason for him to exist". Canonically, Ron represents emotion, as Hermione represents reason. Largely excising him from the story leaves out some great opportunities for character development for the hyper-rational Harry. On the other hand, their friendship was founded largely on Harry not being kind of a jerk.
    • In this version, Hermione is The Heart or The McCoy, and Harry himself is The Spock. Draco could be The Kirk.
  • Nightmare Fuel:
    • DO NOT MESS WITH TIME.
    • When Harry catches the Remembrall, and it glows like a sun.
    • McGonagall's speech about the dangers of transfiguration.
    If you transfigure your hair blonde, it will fall out. If you transform your skin to be clear... you will be very ill and spend a long time at St.Mungos.
    • The terrifying Welcome to the Real World Omake in Chapter 64.
    • After meeting the Dementors, Harry briefly becomes hyper-rationalist. Specifically, he divides everyone into useful or non-useful categories. If they aren't useful, if they're doing so much as annoying him by crying, he wants to kill them.
  • Omnicidal Maniac: Harry wants to become God and rewrite reality to fit his whims.
  • Ron the Death Eater: Subverted. While early on, Harry is very dismissive of Ron and it looks like he's going to be written out of the story, in chapter 31, he shows up again, as one of two chief strategists in Hermione's army. Unlike Harry, Hermione is better at recognizing the talents of others, and Ron is a master chess player.
  • Second Verse Curse: Harry only knows the first and last couple of lines of Tom Lehrer's "Be Prepared"; his parents rather wisely didn't teach him the rest.
  • Tastes Like Diabetes: Harry's "romantic" first date, organized by the rest of the girls in his class. He's not amused.
  • Toy Ship: Harry and Hermione are eleven/twelve years old, even if they don't act like it. Everyone believes they will end up together - except the 'loving couple'.
  • What Do You Mean, It's Not for Kids?: "Writing a childrens' book is much harder than writing a story for grownups. I can't do it. Therefore this is a story for grownups..."
  • The Woobie: Poor, poor Bellatrix. Quite remarkable, considering that her characterization here is merely an expansion upon her characterization in canon.