- The title of ''5150, rue des Ormes' finally made sense to Iamabrawler when he looked up 5150 on Wikipedia: In California, it's the number for involuntary psychiatric hold. There is, indeed, an involuntary hold in the book, but the twist is simple: It's the person who keeps Yannick captive who is insane.
- More Fridge Brilliance for 5150 rue des Ormes: Jacques Beaulieu is motivated solely by a desire to punish injustice and reward the "Justs", as he considers himself a "Just". He's so rooted in his impressions of a Black and White Morality that he only ever uses the white chess pieces, and the lifesized chess board he creates has the criminals as black pieces, and these criminals' victims as the white pieces. However, reading through the excerpts from Maude's journal reveal that Jacques had a tendency to beat up his wife when things went wrong. What's more, he kicked her in the stomach while she was pregnant with Anne, which explains why she's unexpressive and nearly lifeless. Here's the true brilliance: Jacques is a "Just" only in his head. He may have been a "Just" in the past, but some of his actions, even before he started getting these ideas, should ultimately classify him as an "Un-Just" in his own eyes. That's the reason he has a complete mental breakdown after accidentally shooting his daughter Anne at the end: He knows he has become an Un-Just because there is no way he can justify this murder, even with his skewed vision of reality. Anne might have tried to poison him, but otherwise she was completely innocent.
- There are further proofs that his delusions make him think he's a Just: His first murder? The doctor who was charged with Maude's childbirth of Jacques Jr., which was a failure. When he mentions some of his other victims, he cites a lowly drug dealer selling to minors, and a prostitute selling her services on the street - two cases of low criminality, which means Jacques is ready to kill anyone who breaks the law, so long as the crime is considered morally wrong by him.
- Added Fridge Brilliance: His delusions of a Black and White Morality completely fall apart when he meets a situation that doesn't fit as either a black or white morality. First was the doctor (Jacques Jr.'s death at birth was an accident that the doctor couldn't prevent no matter how much he tried), and then there's Yannick, who accidentally witnessed Jacques' latest victim at the beginning of the book. Accidents make his entire vision of life completely fall apart, and him killing his daughter at the end was also an accident, another reason why he went catatonic.
- What's more, it seems like another reason why Jacques ended up catatonic was because the death of Anne Beaulieu forced his brain to put everything back into perspective; everything he ever did that was wrong hit him in the face and he couldn't process the information; he was so delusional that once the actual truth hits, one that isn't modified by his delusional point of view, his brain stops functioning.
- Most of the villains in Patrick Senécal's books are people who appear as sane, respected individuals. Jacques Beaulieu, Maxime Lavoie, Rupert Archlax Sr., Vivianne, even Thomas Roy. Literally, anyone you're talking to could actually be an insane human being. Anyone. And yes, that includes celebrities.
- What causes Maxime Lavoie's loss of all respect for mankind is horrible in itself... but those are all things that happen in real life. Bastards leading huge corporations? Check. Sex, sensationalism and money leading the world? Check. Abusive Parents? Check. Under-paid Asian/Indian/Taiwan workers making objects that will be sold for hundreds of dollars, even thouh the fabrication costs were nonexistent? Check. Incest, pedophilia, corruption of the police forces? Check, check, check. Outside of the actual plot of the story, the world of Le vide is extremely realistic. No wonder it's one of the most depressing books to read. And that's not even getting into the fact that the WHOLE STORY has become Harsher in Hindsight now that the number of shootings has increased in the United States and in other regions of the world.
- Le vide was also a critique of the current 21st Century culture, our addiction to television, especially reality shows. It can also count as a critique of anti-intellectualism. Senécal's later book, Quinze minutes, approaches similar themes with a more comedic tone... but if anything, this shows that the people of Quebec haven't learn from the massacre at the end of Le vide. And it's strongly implied both works are set in the same universe, as are all Patrick Senécal books.