Children really are toxicTo monsters anyway. They limited the amount of exposure necessary to harm them in the film.
The Black Death is the reason they fear children are toxic.Taken from Website/Cracked: Monsters Inc. is set in a world inhabited entirely by monsters, who have figured out how to turn the screams of human children into a renewable, clean source of energy. The only problem (besides the whole "traumatizing kids" thing) is that children are considered highly contagious in the monster world. When a little girl named Boo sneaks into this world, the monsters turn out to be more afraid of her than she is of them. The results are highly comical — the mere possibility of contact with humans causes the monsters asto fly into a frantic emergency disinfectant procedure. But why would they ever get the idea humans are toxic? According to one fan theory by Reddit user Calabim, what terrifies the monsters is actually the Black Death. Here's why: In the movie it's pretty clear that the monster world is a lot more advanced than ours: They have Jetsons-level technology, they can travel across dimensions, and they walk around naked, the mark of a perfect society. Therefore it stands to reason that the monsters have been traveling to our world and collecting our screams for a long time ... like, say, since the Middle Ages. You know, back when the bubonic plague was happily strolling around Europe killing everyone. Now, the main way that the plague spread in Europe was through fleas. And, say, remember what the monsters' reaction was when a single human sock was found clinging to someone's fur? After removing the sock using a pair of extra-large tweezers and vaporizing it, they shave off the monster's fur, then give him a shower, and that's it. No medicine. No mass inoculations. No quarantine in a glass room. The only possible purpose of this, therefore, is to remove the monster's fur as soon as possible, an action which itself only makes complete sense if the disease they're afraid of spreads through tiny insects that cling to hair. No fur, no fleas; no fleas, no re-emergence of plague; no re-emergence of plague, no bullet to the face for Sully when Mike snaps and mercifully spares him a painful death. Everyone's a winner.
Humans are like peanutsIn real life, most people can touch and ingest peanuts without incident, but there are quite a few people who are severely allergic to them. What if the first monsters who discovered humans had a lethal allergy to the species, and it was thereafter presumed that all monsters are vulnerable to people?
Boo's real name is Emily.And in ten years or so, when she gets too old for dolls, she will leave the Cowgirl Jessie doll she showed Sully in a box for charity in the park, as seen in the flashbacks in Toy Story 2.
Boo's real name is Violet.Specifically, Violet Parr. Her ability to get places she shouldn't be without Sully noticing is due to her invisibility powers just beginning to manifest.
Boo's real name is Chell.Her constant vanishing act throughout the film shows that she's clearly thinking with portals. Plus, she and Chell look similar.
Changing the power source to laughs will result in our world being drained of laughs and drowned in laughter.Everyone will become a cold, atheist soulless executive emo. Previously, humans could be happy because the monsters were purging our world of scariness.
At the end there's both a laugh and scare floorComparing the main tower you see in the middle of the complex in the full shot of the factory with the overall shape of the scare/laugh floor, it looks like there's two different scare floors in the beginning. Also, some monsters are more thoroughly trained as scarers and it'd be easier to have half of your floor with already trained professionals while getting used to the new system of using laughs.
The doors are alive.The doors require every large piece to function properly, but at the end, Boo's door still clearly displays the cracks from being shredded. When Mike adds the final piece, he closes a relatively large, irregularly shaped gap. (All of this only occurred to me because I was reading Slaughterhouse V.) As per the cryptic parenthetical, the door can function with cracks (live with slit-shaped wounds) visible, but can't handle missing pieces (in the reference, triangular wounds, but more generally chunks of flesh ripped out—charming, eh?)
Boo is a Slayer....who just got activated really, really early. Explains the whole 'beating the holy hell out of the villain thing'.
Aaahh!!! Real Monsters takes place in the same verse'.Why does Aaaah! Real Monsters take place in our world when the monsters in the film live in a different universe you ask! The School is located in our world so the students can get some first hand experience. While the monsters train at the Academy as students, they later find jobs at Monsters Incorporated.
Boo is Haruhi Suzumiya at a younger ageShe used her reality bending powers to make monsters become real and happened to end up with Mike and Sully.
Boo is Russel's mother from Up at a younger ageAnd nothing more.
The monsters speak a different language than humans do.Boo walks, runs, is toilet-trained, and draws remarkably realistic pictures for a young child. I'd put her age somewhere between 3 and 4. Despite this, most of her dialog comes out as gibberish. My theory is that the movie translates the monster language for convenience. This would explain why all we can understand from Boo is "Kitty!" (which must be the same in both languages, for whatever reason) and "Mike Wazowski" (which she learned from Sully). It is also a possible explanation for why the kid at the very end doesn't laugh at Mike's act until he swallows the microphone.
Boo in the sequelThe sequel will be set 10 years after the first film and Boo is a moody Goth teen in vast contrast to how she was as a toddler.
The use of laughter for energy will destroy the monster world.Imagine you have a large group of kids being scared by monsters. A decent percent of them will complain to their parents about this. Now imagine the same kids telling their parents those same monsters are trying to make them laugh. That would have dangerous consequences for the monsters, wouldn't it?
The snow cones weren't lemon-flavouredThe Abominable Snowman leaves, supposedly to give Mike and Sully privacy. You can clearly see he gets scared easily, so pants-peeing isn't implausible (this takes care of the source). As Sully sleds his way to the town, he comes across the Snowman who now has a new batch of snow cones. If they were lemon-flavoured, then where did he get lemons from? Lemons don't grow in regions as frigid as the Himalayas! He couldn't have gotten them from the town either, as it was a "Three day hike away". Also, this might not have been improper of him, as Monster society probably had such flavours (remember,they have deodorant scents like "Wet dog"). On a side note, the Snowman was probably banished from the world of monsters because of his tendency to get terrified, which was un-monsterlike behaviour.
Boo can teleportThere is no other explanation for how she can disappear without a sound and then be right behind or in front of you.
Boo is a god of the monsters worldThink about it. When she cries, she almost caused a power outage, but when she laughs, the electrical power increases.
At one point, Monsters Inc. had a run-in with Aperture Science.It explains how the doors are able to act as passageways to rooms in the human world - the doors were created using the portal gun technology.
The monsters will eventually lose technology due to lack of laugh or scream powerFollowing the idea that all Pixar films take place in a shared universe, in hundreds of years, the monsters will lose the ability to make technology since all of the humans have left Earth on the various Buy 'N Large cruisers. This probably means that the monsters will either die out or revert to primal instinct in order to survive.
The prequel will explain why and how the Abominable Snowman was exiled.John Ratzenberger has been confirmed to appear in the sequel.
The humans are going to find the monster world, one way or another.The door-vault sequence, with the number of doors it opened and the number of people who probably saw monsters go through, probably revealed at least one door to the human world. And the very act of going through a door and making the kids laugh, which usually takes longer, is fraught with peril–-the monsters have to stay outside their world longer, which means that there's a greater danger of being caught on CCTV/satellite imaging/news video. Discovering a portal to another world through which Starfish Aliens come would be a huge event for humanity. Doors would probably be guarded and filmed, waiting for one to open so that scout/assault/research teams can enter. What the humans will do is uncertain, but it's likely that something monumental will happen.
Randall is also Andy's monster.When Fungus pulls down a variety of backgrounds for Randall to "warm up" with, one of them is Andy's wallpaper from the first Toy Story.
The Backson from the 2011 Winnie-the-Pooh movie is a Monsters Inc. Scarer that got stuck in the human world.Was I the only one who thought he looked like a character from Monsters Inc.? Maybe he was a top scarer before, who through an accident got locked outside of a closet in England, and decided to roam the 100 Acre Woods to find a way home.
Mike and Sully weren't the first to discover the power of laughter.Back when power was invented monsters realized that laughter was more powerful, but either a Corrupt Corporate Executive already designed a scare system and hushed the competition, or it seemed cool in theory but too powerful/unstable and didn't implement well with the current technology.
The prequel will feature Boo in the openingWhere, after a conversation between Mike, Sully and a 16-year-old Boo, the conversation will turn to "How did you two meet?" and the story will actually start.
The prequel will feature a Framing Device involving Mikey and Sully revisiting their College.They would be back on Campus to deliver a speech on their success with Laugh-harvesting Monsters Inc. And the main story would start when either Mike or Sully see something that brings them back to their college days.
Time passes much faster in the monsters' world.
Celia is simply The Beard for Mike.It certainly feels like it, no self-respecting monster would be so Sickeningly Sweet with each other. (maybe) Perhaps she likes him for real and was hoping he'd eventually like her too, and why she becomes so upset at the sushi bar.
Jeff Bridges will have a cameo role in the prequel.And there will be a scene with his character at a bowling alley with Sully and Randall.
Monsters speak at a decibel only children can hear.It would explain why no parent ever seems to have seen a monster (since, if they had, they would no doubt try and defend their child from it in the future, or move immediately, etc), and it would also explain why Boo's parents, who have probably been worried sick about her, don't burst into the room at the sound of Sully tucking her in.
Some of the monsters were once human, but not allWhich would explain why some of them have human names (James P. Sullivan, Michael Wazowski) and why some (Bile, Phlegm) have monster-names.
Monsters Inc is what would happen if Parallax won.In case those were wondering, Parallax is an emotional entity which feeds off and personifies fear. In Zero Hour, it possessed Hal Jordan and made him the Big Bad. Monsters Inc is a world which uses fear as a power source. In an alternate continuity, Parallax managed to recreate the universe to feed him with fear forever-however Hal Jordan's influence prevented Parallax from making Monster's Inc a true world of fear, resulting in a more family-friendly "scare for care" universe.
Theories for what might go into another sequelThis because I read somewhere on Tumblr that they're gonna make one (but I don't know how valid it is). Soooooo any ideas of what would go into such can be put here.
There is a "Cone of Silence" when the doors are activatedWe keep on wondering why the parents aren’t catching on to things. Well, in MU, Hardscrabble specifically says that crying would get a monster caught as opposed to screaming. Why make that distinction when both would be equally audible? Well what if part of Door Tech acts like a green screen for sounds, and filters out the sounds related to the job, but all other sounds, like crying which has no place in monster power needs, get through just fine.
The scream shortage and the ability to switch to laughter are both caused by things like Seasame Street.Basically the monster universe both makes an internal sense and is half made up of the belief of humans. Since humans thought of monsters of as scary the whole monster universe was essentially made of and powered by fear. As children get stories saying monsters are friendly scream becomes a weaker power source since the universe is now made more of laughter and kids become harder to scare as they think monsters are friendly. New monsters are also more likely to look like Muppets than the older generation further sabotaging scream power.
It WAS "Bring an Obscure Relative to Work" day at M.I.Waternoose missed the memo, but that doesn't mean some of the other monsters didn't. The monster kids Boo met are related to somebody somehow...
The auditions of the terrible new Scare recruits were caused by the power shortageThey were desperate for new Scarers to make some more power, hence why they were wasting their time giving pointers/guidance to the clumsy untalented monsters.
The main religion in the monster world is Pastafarianism
The two movies, when put together, become an allegory for the rise of 3D CGI theatrical animation.When Mike and Sully were young, scaring was a highly sought-after career, so much so that highly selective programs at prestigious universities popped up, and looking at the lack of Oozma Kappa or even Roar Omega Roar at Monsters, Inc., it's likely that getting a job in the business is still tough with a degree. After some time, the entire industry finds it increasingly difficult to support itself (that is, paralleling the diminishing box office returns for animated films through the 1990s) until it does a complete overhaul, having more or less accidentally found a new and highly effective sustainability source from the same demographic as before—small children. Unfortunately, this means that most of the workers caught in this shift, who had trained their entire lives and went through hell to get to where they were, were suddenly rendered obsolete and without any useful talents, save for the few who could quickly adapt to the new environment and the demands it requires, like Mike.