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#learning deduction
Deduction Tips #16
The size of a bag is indicative of how much a person needs to carry, and usually we prefer to carry less things. When you see someone with a bag (be it a backpack, a purse, or anything else) think about why this person needs a bigger one rather than a smaller one, and what that says about the contents of the bag and the situation of the person carrying it
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sleuth2k7 · 9 months
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Visualizing the Building Theory using BBC Sherlock
@amateur-deductions recently did a post on the Building Theory. In his words:
[The Building Theory] serves as a wonderful way to illustrate how much a deduction is a progressive process, with multiple little steps between observations and conclusions. It's also an amazing tool to analyze other people's deductions and break them down in a way that allows you to map out their trains of thought and learn from them
He provides an excellent explanation of how the theory works: basically, you think of the process of deducing as constructing a building, with observations and subsequent deductions representing bricks that are stacked on top of one another, building up to more complex deductions based on those original observations & deductions.
I’ve always liked this theory because it makes the process of deduction more tangible and visual, which helps me learn, and I know others like to use visuals to learn too.
I’ve mapped out deductions from BBC Sherlock before, so I thought sharing that here would help provide a visual supplement to @amateur-deductions​‘ work.
When Sherlock and John first meet, Sherlock asks: “Afghanistan or Iraq?”
You can watch the scene where he asks that here. And the scene where he explains how he got to that here.
While the show provides a decent verbal breakdown of how Sherlock got to that question, we can also visualize his process like this:
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blue: observations // green: deductions made from observations // pink: deductions made from prior deductions & observations (level 1) // yellow: deductions made from prior deductions (level 2)
As you can see, Sherlock uses his initial observations about John to make deductions, and then uses those deductions to make additional deductions. All of this culminates in him asking John “Afghanistan or Iraq?”
Let’s break down this process a bit. We can think of this building as being made up of a bottom floor, and then two supporting sides that work together to build onto that bottom floor and also support the roof placed on top. 
First, the bottom floor:
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When John enters the room, Sherlock looks up at him and makes four observations about him, which he uses to make two deductions.
1. stance + haircut = military
** Sherlock knows that these observations = military from knowledge he has about the appearance/behavior of people in the military.
2. looks around the room + says “bit different from my day” = medically trained at Bart’s Hospital
** Here Sherlock uses a combination of knowledge and logic. He knows that Bart’s Hospital is a well-known training hospital and if John is familiar with the lab that the pair are standing in (as opposed to a patient room), he must have been a student there.
Sherlock then takes those two deductions and combines them to create another: military + medically trained = army doctor. That deduction forms the base of the rest of the building.
Next, there are two supporting sides. Let’s call them the “limp” side and “tan” side, as those are the two observations that form the base of each.
First, the limp:
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Sherlock begins with several observations: 
1. has a limp and uses a cane.
2. does not ask for a chair to sit in.
** Knowledge: Sherlock knows that people with limps may look for or ask for somewhere to sit.
From this, Sherlock deduces that John:
1. forgets he has the limp.
2. Why? Because the limp is psychosomatic.
** Knowledge: Sherlock knows about psychosomatic injuries.
3. Which means that trauma caused the limp.
Second, the tan:
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Again, Sherlock begins with two observations, and each have their own subsequent deduction.
1. has a tan. = was recently in a sunny place.
** Knowledge: Sherlock knows that people get a tan from being in the sun, and that tans fade over time.
2. only has a tan on his hands and face. = was in a sunny place while wearing long sleeves, so he was not on vacation or sunbathing, but was on business.
** Knowledge: Sherlock knows that when people go on vacation to a sunny location, it is not typical to wear long sleeves or professional clothing but rather dress casual (shorts and a t-shirt, swimsuits, etc.).
Here is where Sherlock’s process culminates into the question. Relying on the deduction that John is an army doctor, and combining that deduction with these two new deductions (1) has a limp from trauma, and (2) was recently in a sunny place for business/work, Sherlock makes this final deduction: John is an army doctor who was recently in a war zone near the tropics. 
He cannot go further than this though, as there are a few locations that fit that description. So, Sherlock engages in order to get the information he needs: “Afghanistan or Iraq?”
~
I hope this provided a helpful visual example of the Building Theory - if anybody has any questions or wants me to go into more detail on any aspect of this example, please ask!
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amateur-deductions · 1 month
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When it comes to the observation weeks in the training program. Could you elaborate on why we shouldn’t deduce then? Is it only about the time when we are doing the exercises?
Hello! great question, i gotta say i didn't write that program, but i did follow it, so i can only give you an answer based on my experience with it and with deduction as a whole. Unfortunately L isn't available to give you the original reason, but if i get in contact with them i'll make a post with their answer.
So, there's this quote from Sherlock which sums up the reasoning behind this very clearly:
"It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts."
During this stage of the program it is assumed you're coming into deduction as a complete beginner, and therefore that you haven't honed your observation skills yet. This means you'll inevitably be at a point where if you try to deduce you'll be doing so while missing a large amount of information, and fall into the trap of not knowing you're missing information and trying to work with what you have, which leads to often taking big leaps in reasoning to reach conclusions, because you don't have enough data to work with.
This is also why when i teach people i make sure they're at an acceptable level in their observation skills before i move onto other stuff. Later on in the process you learn how to make the most out of a situation where you have little to no information to deduce from. But that's a bit too complicated for a beginner, so it's important that they don't try to deduce until they have a solid grasp on what information they can gather
Aditionally, the training program, as incomplete as it may be, attempts to separate the process of learning deduction into manageable chunks. That program was written during a time where the community was much bigger and everyone attempting to find some way of learning this skill. Everyone was coming up with solutions to their problems and sharing them in the community, and that program is an attempt to solve the overwhelming feeling that comes with trying to learn a massive skill with multiple possible points of entry. It segments it into manageable, organized chunks for people to have a neat way of getting started with deduction, and one of those chunks is just observation, since it's complex enough of a base skill to have its own section
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miabrown007 · 10 months
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at least we now know that neither Marinette or Adrien are aware of him being a senti. after the S3 final we all assumed Adrien knew Rena Rouge and Carapace's identity, because it was so evident: cue Rocketear. after Félix and Kagami's theater kid nonsense we all thought Marinette finally knew Hawkmoth's identity, because how could she not? : cue Confrontation.
almost makes it look like our main characters are not allowed to learn or deduct anything that isn't explicitly spelled out for them
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Inquiry is not a method of producing answers, it is a way of learning the answer is worth.
- Neil Postman
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cantsayidont · 6 months
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December 7, 1945. Desperate to find the remaining pieces of Kryptonite before his enemies can recreate the experiment that transformed the late Heinrich Milch into the Atom Man, Superman enlists the help of the famous Batman. However, while Superman knows Batman and Robin's secret identities, they don't know his, forcing Superman to reveal his most closely guarded secret to Bruce Wayne — who at first doesn't believe him!
If this sounds unfamiliar, you won't find it in any old comic book or comic strip; it's part of a storyline on the ADVENTURES OF SUPERMAN radio series, where Batman and Robin first guest-starred in March 1945. Only two 15-minute episodes of their first team-up are known to survive today (survival of wartime episodes of the radio series is poor), but most of the episodes of this serial and all of their previous costarring appearance in September 1945 still exist.
Unfortunately, this 26-part storyline is a bit of a clunker, with some exasperating Orientalist bullshit. A particularly dumb plot point: Everyone in Metropolis, including Batman, seems baffled by a mysterious crescent and star symbol, and no one makes the association with the flags of the Ottoman Empire or Turkey — not necessarily something the original audience would have known, but certainly something one would expect Batman to point out!
The story's most fascinating detail: After Bruce Wayne has accepted Clark's revelation, he deliberately chooses NOT to tell Dick Grayson. While Superman had known Dick was Robin since their first meeting, Robin remained ignorant of Superman's secret identity in all of his radio appearances.
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fenrishion · 8 months
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4pm thoughts
i don't understand the older generation's propensity to blame the younger generation for not being able to save enough due to rising prices.
"just spend less!!!" as if there aren't studies and charts that already show that income vs. the rising price of food/necessities has become so dispropotionate over the past decade or so
they complain about how the younger generation eats outside all the time instead of cooking at home. but how do you cook at home when all you can afford to rent is a room, or the house you rent doesn't allow cooking?
or if you're only eating outside once a month and cook at home the rest of the time they say "stop eating outside food". like if you cut down your outside food budget by RM60(USD15) a month, you can miraculously afford a down payment on a house.
and even if you can afford a house, the prices are astronomical nowadays--- you'd probably have to take out a 20-year loan to do so, vs in the past when houses were so much cheaper.
maybe all these problems seem very nonconsequential to most of the older generation/people in charge, since they're usually part of the high income bracket people, but tbh most of the population in the country(especially the younger ones) are probably only a few paychecks away from going homeless.
like!!! my dudes!!! why are you siding with the corporations when they don't even have your backs and are one of the main causes of all this as well...?
are people not allowed to treat themselves once every now and then with? if not, what's the point of working in the first place?!
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meatsound · 4 months
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this time last year i was hiking the AT. i was rock climbing. now my lungs are just fucking busted lmao
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sketch-elf · 1 year
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You know, I used to roll my eyes at names that were just regular words, but after I've done lots of name research for a few OCs I've come to respect them because guess what?
It turns out MOST names are just regular words, or two-three words smushed together. It's just that most of those words belong to old or dead languages or have fallen out of style
Edward is just the old English words for "wealth" and "guard" smushed together, with the As being removed over time
Geir is The Old Norse word for "spear" and is just one extra R off from the original version
My own birth name was also originally two regular Old Norse words put together, and just got edited over time as language changed
It's all just fcking words
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benetnvsch · 1 year
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knkdz in the bsd IDV collab intros will always be so funny to me- Dazai is literally introduced as a 'member of the Detective Agency, partner of Doppo Kunikida' and it goes on abt how he likes to tease kunikida and how well they work together and then Kunikida's description says absolutely nothing abt Dazai - he does Not exist
(kunikida (and Yosano) ended up being scrapped for political reasons too so there's just?? a bunch of mentions of Kunikida now without him actually being there LMAO -)
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Hi!!! How can deductions be used in day to day life, or like, usefully? And how have you made useful deductions? Sorry if that made little sense
Hi! I see you sent this question in the past two days, i'll gladly answer it, but in case you send any other questions in the future and i don't answer them as quickly i'll inform you that usually all the questions of the week are collected in my inbox and you'd get your answer on a Monday (this week i had some scheduling problems so i pushed it to Wednesday), so if you don't get as quick an answer next time just wait for Monday!
Now, regarding your question! There's many ways deduction can be used in daily life, sometimes it even depends on what you do for a living. For example i know psychologists and other healthcare profesionals have to rely on non verbal communication and information they gather from observation, along with what they're told, since patients can't be relied upon to be transparent and honest all the time, or even know what information is releant to share. In this case deduction can be massively useful.
On a more general note, it depends a lot on the type of relationships you have, i know people who use deduction to interact with their friends, it allows them to know when they're feeling upset or worried, and about what, and act accordingly, all without needing to do more than just glance at them. I know people who use deduction to navigate social situations because they're not good at interacting with people and having the extra information deduction provides helps. Personally i'm someone that introduces deduction into everything i do, from acquiring helpful knowledge when talking to superiors, to knowing what waiter is best to call over at my table cause they've gotten more hours of sleep.
I recommend you watch Sherlock, House M.D., The Mentalist, and all of these deduction heavy shows that sometimes showcase how these characters use their skills casually, it's really not much different than what you see there. If you want a blog that really goes into casual uses of dedduction i'd check out @froogboi 's blog, it's full of everyday life uses of deduction
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sleuth2k7 · 4 months
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Christmas deductions - whose wrapping paper is whose?
This post is coming a few days later than I intended, but it is still December! Inspired by @studies-in-the-art-of-deduction's post about deducing presents and @a-study-in-sepia's post deducing presents under her tree.
Each year, my parents randomly choose a different wrapping paper for the seven people in our house. For the past few years, my parents have had my siblings and I guess whose wrapping paper belongs to who - whoever gets the most correct gets to open the first gift. Not important to the post, but I did win this year, buuuut I only got 3 out of 7 of my guesses correct. For this post, I'm focusing on the 3 correct guesses and how I used observations/deductions to get those 3 right. I say both observations and deductions because I'm including information collected in the weeks leading up to Christmas and also physical examination/deducing of wrapped gifts.
--
I get Amazon package notifications on my phone as my family shares one account, and I saw a 3D printer pop up in November. I knew that my Dad had wanted one for years and had been collecting the plastic-y materials for 3D printing for years too. So that's his present: I know from this that one of the larger presents must be a 3D printer. But which box is his? There were four larger presents - 3 different wrapping papers, with one wrapping paper being used twice. Related to that, I remembered a conversation with my Mom in November - she had been excited about a present for Sibling Y and told me about it, referring to it as one of the presents in the stack of four large boxes. She then slipped and mentioned that the item was in two separate boxes. I now know Sibling Y's wrapping paper. So I went to the other two large presents and picked both up: one was light and one was much heavier - 3D printers are heavy, so I know what my Dad's wrapping paper is. (Note: I double checked this deduction by looking at whether that wrapping paper had very few gifts, as my Dad typically has the fewest, and that wrapping paper did.) With the last large present, I did not deduce correctly whose it was - but I know why I didn't so I'll explain. Months ago, I was told how Sibling R's suitcase had been broken and how she would get a new one for Christmas. I forgot this conversation, because if I had remembered I would have known the final large box was a suitcase. Why did I not realize this when I picked the box up? Because of a conversation I remembered in November where my mom had told me she wasn't sure how I'd fly back to my place with my gifts. I swear she said that I had a gift or two that was too "big" but she told me post-Christmas that she had meant too heavy, not big. I had taken it as meaning my wrapping had to be the one the fourth large box was, since that was the only box left that would be too big for a suitcase - which is hilarious to me now because it literally was a suitcase. Oops. Lesson learned though: don't look at physical data through the lens of a conclusion you'd come to before looking at the physical data.
Those deductions were made through a combination of paying attention prior to Christmas and physical observations. The third wrapping paper that I deduced right was Sibling N's - I found two presents, deduced what was inside, and based on that knew which sibling that was. Box #1: I shook this box and could hear a liquid sloshing around inside. In the weeks before Christmas, there had been a lot of talk of body sprays and perfumes from Siblings R and N. Based on how the sloshing sounded, this was not a perfume bottle, since the sloshing was too "big" if that makes sense - I could tell the bottle was bigger and there was more liquid than a perfume bottle. Sibling R uses perfumes and doesn't like body sprays, and Sibling N predominantly uses a body spray - so I deduced that this box had her specific brand of body spray. I marked the wrapping so when she opened it on Christmas day, I could confirm that I was right (I was). Box #2: I picked up a few other boxes with the same wrapping as the body spray, looking for any indication of another gift Sibling N would be likely to get. One was a long (maybe a foot (or 2 hands length), rectangular box. I shook it and based on the sound I thought there was one item inside: similar shape to the box, long and rectangular. I deduced that this was a flat iron or curling iron of some kind, since several of my siblings, including Sibling N are always fighting over/stealing each other's flat irons. I confirmed this deduction on Christmas - she had gotten a flat iron.
I may make a second post that includes where I went wrong with the 4 incorrect guesses, but I will definitely do another post like this one next year - it was fun. :)
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amateur-deductions · 1 month
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Greetings @amateur-deductions
What are your Go-to advice for for those who start becoming a deductionist and just finished learning body language?
Appreciate Your reply
Bless you all and have a good day.
Hello! Sorry for the delay, i've been on a hiatus since Christmas.
So if you're coming from having learned body language already you have a bit of a head start compared to people that are starting fresh, since you probably have already learned to be more observant, to be constantly aware of things like body movements and facial expressions, and to intepret these things and process them as you take them in. I would say this means you can put a bit less time into the observation practices beginners usually have to go through, and you can dedicate more time to practicing reasoning and logical thinking
I would also say you have the option to approach deduction using your body language background. Something you start to realize as you get better at deduction is that everyone has cultivated different skills they use to extract information, some people use raw logic reasoning, some use extensive psychology knowledge, and some use extensive knowledge in body language and facial expressions, and there's nothing wrong with any of these methods, they're simply what you could understand as different "specialties".
So i would advice that you don't try to learn deduction as a separate discipline than body language, but rather use your body language knowledge, coupled with anything you learn in the field of deduction, to enhance your conclusions
This does come with a disclaimer though. Make sure that you're not leaning into your body language knowledge so much that you're avoiding doing the exercises and learning the methods that are core to deduction simply because body language provides an easier path, since you're well versed in that already
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thedeductionpage · 1 year
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Denial
I’m a person who loves psychological deduction. I prefer working on a person’s psyche / personality rather than getting more physical, sherlockian deductions. If you happen to get your deductions confirmed, you’ll come across a few forks in the road, make a few mistakes, and that’s fine. Sometimes, though, you are completely correct and the problem lies in whoever you’re deducing, because they’re living in denial.
How will you be able to tell if you’re actually onto something or if you’ve made an error?
1.) self-awareness. Was that deduction really reasonable, or did you just want to feel better about yourself? Did you just want the drama, or were there pieces of evidence to support it? Check yourself.
2.) establish a baseline. Is it in the person’s behavior to be in denial about this? if yes, then…there you go!
3.) look for inconsistencies. Prod them a little, see how they react, emotionally.
4.) ask the right questions.
I’ve got two examples from two people i’ve deduced, one in denial, one I was incorrect about.
I deduced a girl in her teens who claimed I got everything correct, but one: that she cared about how people saw her and her looks. According to her, she didn’t. Of course, that was a lie.
Why? Here’s what I got (keep in mind that these were all confirmed)
- 13-16, female, stable economic status, not as comfortable as she liked.
- active online
- wants to be seen as funny, charming, someone intelligent, interesting, and with substance.
- strong personality, opinionated, rich inner world, yet introverted and shy.
- has older siblings that are perceived as either more attractive, intelligent, or both.
- complicated but alright relationship, closer to mother.
- lonely
- has trouble asserting herself.
- feels a lot of pressure to live up to her own and others’ expectations of her, academically, physically, behaviorally.
She claimed she didn’t care how she looked and what people thought of her and that I was wrong. I ended up being right, but we’ll get to that, later. Why did I stick to my guns?
- had on undetectable makeup, face covered with hair that was braided.
- fashion had a clear niche or message.
- psych profile: insecure, pressured, self-perception, trouble with assertion
—> Her psych profile, that she confirmed, all points to a certain pattern. What I knew about her was she was insecure, feeling pressured, wanted to seen as interesting, all that— but what’s the root cause of all this?
She draws a lot of her self-image from those around her.
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Whether she wants to be pretty and smart enough or wants to prove she doesn’t care are not as important the fact that she feels she has something to prove to these people. There’s a difference between not caring and wanting to look like you don’t care. There’s a difference between thinking/being something, and wanting people to see you as that. Look for inconsistencies.
What about when I was wrong?
I deduced a girl and got:
- introverted
- young adult to teen female, around 17.
- artistic or creative, sketches or writes.
- very active online, expressive.
- very particular about self expression.
- outspoken
- insecure, specifically when it comes to the physical self.
- wants a sense of belonging, to be seen by the right people in the right ways.
- feels misunderstood.
- skeptic
- anxious
- closed off, emotionally distant and can be seen as cold or abrasive
- “I wouldn’t say you have a terrible reputation or relationship with people in your social circle, you may just not be involved enough.”
- your parents / family, I think may be an okay relationship? They’re not terrible, at the very least.
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I got things wrong because of biases, honestly. The things she called out were reasonable.
introverted—> actually extroverted. I was led on by her activity online and the stereotypes that came with the “edgy-activist”, outspoken type.
relationship with parents—> i wanted to play safe and didn’t want to risk it, ironically, didn’t want to engage in stereotypes even if the answer was right there.
I also got her economic status slightly wrong, mainly because I got lazy/careless and didn’t want to offend her. I’ll admit, I didn’t have the balls and was biased.
Hindsight’s 20/20, learn from your mistakes.
As you can see, there’s a clear difference between someone who’s in denial and someone you’re wrong about. Remember, when you talk to those in denial, that you’re altering their perception of reality slightly. There will be feelings. So, how do you approach the problem?
Ask the right questions. I didn’t ask the first girl why she was lying, I asked questions that I knew she would answer a certain way, if my suspicions were true.
- you use fashion to express yourself? yes.
- you did your own hair? yes.
- “i normally do my hair”
Ask questions with answers you know they’ll answer a certain way if your deduction was correct. Look for reluctance or a highly emotional response. These all, + my previous deductions, pointed to me being correct. Stick to your guns. Make it make sense. Learn how to detect shit. I’m gonna be honest, I’m getting sick of writing this post so i’ll stop here. I hope you learned something from this. Bye.
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snzyspencer · 10 months
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Fuck this tissue box is appealing perfectly to my dark academia taste and it is taking everything in my power not to buy it
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(Amazon link to anyone who wants it)
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dna-d2 · 1 year
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Okay now I’m watching Illusion, and one of the first things I see is Gabriel being a nice person?? Is this Hell?
This is Hell, isn’t it?
(Jesus Christ he got a drop of something on him and nearly bludgeoned the food he is so goddamn extra but in the worst way)
((AND THEN THE EMOTIONAL BLACKMAIL YUP THIS IS THE SHIT I EXPECTED))
Edit: And then he gets chased by a bunch of friggin sewer rats. I love it. This just keeps hammering home why he shouldn’t leave his cave
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