Logic In Philosophy: Logical Fallacies And Common Mistakes | Alex Genadinik | Skillshare

Playback Speed


1.0x


  • 0.5x
  • 0.75x
  • 1x (Normal)
  • 1.25x
  • 1.5x
  • 1.75x
  • 2x

Logic In Philosophy: Logical Fallacies And Common Mistakes

teacher avatar Alex Genadinik

Watch this class and thousands more

Get unlimited access to every class
Taught by industry leaders & working professionals
Topics include illustration, design, photography, and more

Watch this class and thousands more

Get unlimited access to every class
Taught by industry leaders & working professionals
Topics include illustration, design, photography, and more

Lessons in This Class

    • 1.

      Introduction and welcome to this logic and logical falacies course

      3:06

    • 2.

      Inductive and deductive reasoning

      2:21

    • 3.

      Ad Hominem

      2:25

    • 4.

      Surrounding yourself with similars

      1:50

    • 5.

      The twisted argument

      1:41

    • 6.

      Irrelevant argument

      1:01

    • 7.

      Argument from lack of knowledge

      1:59

    • 8.

      Case studies can be misleading

      2:34

    • 9.

      Statistics vs. case studies

      3:10

    • 10.

      Blindly trusting old assumptions

      2:10

    • 11.

      Correlation does not imply causation

      1:03

    • 12.

      Wishful thinking

      1:31

    • 13.

      Being uncomfortable with having negative thoughts

      1:53

    • 14.

      Non-confrontation and giving into bullies and threat of anger

      3:52

    • 15.

      Political correctness

      2:20

    • 16.

      Power of slogan

      2:22

    • 17.

      Can't disprove a negative

      1:20

    • 18.

      Group belonging confusion

      4:39

    • 19.

      Ontology, Epistemology, and bias

      4:31

  • --
  • Beginner level
  • Intermediate level
  • Advanced level
  • All levels

Community Generated

The level is determined by a majority opinion of students who have reviewed this class. The teacher's recommendation is shown until at least 5 student responses are collected.

200

Students

--

Projects

About This Class

This course will help you think more clearly through many of life's dilemmas and difficult situations.

Some logical fallacies you might be familiar with are:

Ad hominem, begging the question, red herring fallacy, hasty generalization, false dichotomy, slippery slope fallacy, tu quoque, appeal to authority, and false dilemma.

We will focus on these issues and a number of other issues throughout the course, and mainly finding inconsistencies of how we understand the world, situation, and how those inconsistencies and errors have an impact on our decisions in regard to our lives.

PHILOSOPHY APPLIED TO REAL-LIFE

Philosophy can be boring to study because it's sometimes hard to apply it to real-world situations. In this course, I make sure that the ideas explained have real-world applications, which immediately makes this topic interesting and useful in life.

Meet Your Teacher

Level: Beginner

Class Ratings

Expectations Met?
    Exceeded!
  • 0%
  • Yes
  • 0%
  • Somewhat
  • 0%
  • Not really
  • 0%

Why Join Skillshare?

Take award-winning Skillshare Original Classes

Each class has short lessons, hands-on projects

Your membership supports Skillshare teachers

Learn From Anywhere

Take classes on the go with the Skillshare app. Stream or download to watch on the plane, the subway, or wherever you learn best.

Transcripts

1. Introduction and welcome to this logic and logical falacies course: Welcome to this course on logic and logical fallacies, which is a subset of philosophy. I'm excited about this course because if you were to learn this content in a university setting, which is usually where it's taught. You may come across it in a math class or advanced mathematics class, or philosophy in both cases. And I've taken it in both cases. It's boring because there's not enough application to real life. And even if your philosophy teacher, the math teachers forget it, they hardly apply it to real life. The philosophy teachers try a little harder to bring it closer to life and they do, but still quite inefficient. Why? Because there's still only using the philosophy part of formal logic, but in real life, which is going to be part of the focus of this course. Logic actually is, has a minor role because most of our premises are driven by emotion and by imperfect input from our senses, from our knowledge that is faulty, which we actually don't know where the folds are. All the premises when you're in a manicured, in a vacuum setting, in a philosophy or a math setting, everything is a perfect setting. You can have assumptions, but in life, all the assumptions are wrong and most of the things we know are true even is largely wrong. And that makes things so hard because in real life, our brains, they oscillate in two ways. We're either using that old brain, which is great for 3 thousand years ago, wherever we are avoiding lions and tigers whom I jump out of the bush, or we're totally addicted to technology and our brains are the brains of addicts. Whereas the middle, whereas normal, this is all relevant for today. Why is it relevant? Well, there are all kinds of organizations, people who want us to do what's best for them. Click on my link. Buying my product, votes for me, whoever, and whatever, the news, the politics, the marketers, they all want you to do what's best for them, but you have to do what's best for you naturally. So this course is going to give you the tools to decide for yourself to not get fooled by cheap tricks. And there are plenty of areas where our brains just break. It doesn't even know. But once you go through this, some of the content in the course, you'll see, oh my god, there's these mistakes I've been making. They are so simple, but without realizing it, it's really hard to know your blind spots. So that's why this course is exciting. My name is Alex is gonna clinic and I'll be your instructor. I sincerely appreciate the time and trust you're putting into me in this course and I'll do whatever I can to make sure you've got a lot of value from this course, starting with answering 99% of student questions within 24 hours. So now that you know how the course is gonna be like what you'll get from the course a little bit about me. Let's begin. 2. Inductive and deductive reasoning: With this video, Let's begin looking into logic and reasoning and start to look into deductive and inductive reasoning, which are two ways to come to a conclusion. First, deductive. That is when you start with a conclusion and you find arguments to prove the conclusion. You might say, dogs are better than cats. And you will start to find arguments why dogs are better than cats. The problem with this line of reasoning is that people are typically subjective and biased and they look for points to support that conclusion. If you already formed in your mind the statement, dogs are better than cats, you're much more likely to find reasons why dogs are better than cats rather than why cats are better than dogs. On the other hand, the other kind of reasoning is inductive. You don't start with a foregone conclusion, but you worked from the bottom up. If you want a challenge the same issue. You ask, what is better dogs or cats? When you ask what's better dogs or cats, you're gonna work from the bottom-up, you'll ask questions, well, what does it even mean to be better? Well, there are different breeds of cats and dogs. They're not all evaluated the same. And you have this really rational approach and build up arguments from there. It will require a lot of patients, but it's more rigorous. And for most people in everyday life, I find that it's a lot less prone to error. Of course, you can still add your subjective biases into arguments, the arguments you want, but it helps to not start with a foregone conclusion. Now, would thaw esophageal discipline? Ideally, you will end up with the same conclusion in the end. But in most cases people do not If they think about the same things, but compared their deductive versus inductive reasoning. To get to that conclusion on to address that problem, they'll find inconsistencies and discrepancies in the results, which actually will highlight where their biases are. We're not gonna get into biases now, but if in this video, the takeaway is now you know how to reason and get to conclusions, deductive reasoning and inductive reasoning. Very necessary tools for logic. 3. Ad Hominem: With this video, Let's begin talking about logical fallacies, inconsistencies, and bad practices, sometimes in your own logic and sometimes in conversational logic. And we'll start with the first one. That very common thing that is so easy to fall for, It's called the Ad hominem. This is essentially attacking the person instead of their argument, you should always attack the argument, not the person. This is very common and you see this all the time on social media. People attack other people, not their points of view. So if somebody says, I think XYZ, The person B says, for whatever reason they might say they're evil, stupid, ignorance, just militias, bad person. Sometimes people will make reasons like you're too young, you're too old, You don't understand. You don't have the education. Many things too rich to poor, to privilege to whatever people attack the other person, not the argument. In philosophy and logic, you have to focus on the argument. The person is only a distraction. They can be separated from the argument. And if you do this, you should stop doing that. And if you see other people doing this, it's prudent to correct them because they're missing the point. The point is the argument now the other person. And by shutting up the other person, you can basically give them to be quiet. But the arguments that they made still stands. And ad hominem is kind of like bullying. We don't want to do that. We want to be rational and open to ideas, even if we don't necessarily agree with them, we have to respect other people's ideas and doing the ad hominem prevents us from doing so. The worst thing is that it harms the person who does the ad hominem. It harms them more than anyone. Just helps to shut up everybody who has a different opinion and reinforces their own entrenched opinions which could be wrong. And the people who would have different opinion are helpful sometimes to help us see another way, another side to the picture. Without that, it makes us stubborn and entrenched in views that can become easily outdated or just wrong from the beginning. The ad hominem is something to really, really avoid. You shouldn't take it, you shouldn't give it. 4. Surrounding yourself with similars: Another error that can skew our worldview is something that I call surrounding yourself with similars, which is exacerbated by social media. Because on social media we can decide who we follow and what we're exposed to. We can completely shut off what we don't want to see. If you pose a question, which is better, dogs or cats. Generally in the world, you might have a 5050 breakdown of people who like dogs and cats. Or maybe it's a 4060, It doesn't matter. But if you surround yourself, if you like dogs, and you surround yourself with dog lovers just like you, who you enjoy hanging out with, query, enjoy talking to. They will only reinforce your opinion and you'll get a very strong resounding voice saying that dogs are so much better. And everyone around you will say the same thing and repeat. And it will have a snowball effect of new having an entrenched opinion and an incorrect worldview. Over time, you'll reinforce that with emotion. And because you're getting social acceptance from that, all kinds of hormones kick in that make you feel much better when he talked to more dog lovers. And further reinforced the fact that dogs are better, even though you might have loved cats just as much if you gave them an equal chance. Where we really need is a balanced exposure and a balance of opinions, even if we prefer one or the other, is just healthy for us, kind of like eating vegetables. But what social media does is if you want, you can unfriendly all the cat lovers. You can only join dog community groups online. You can only watch dog YouTube videos. And it will seem like the world is mostly made up of dogs. You can yourself kind of pigeonhole yourself and your worldview in only seeing the world as you sort of mold at it, not truthful to how it actually is. 5. The twisted argument: Now I want to highlight another logical fallacy called the twisted argument is it has a couple of problems. We'll go over. If somebody says, exercise is good for you. And another person says, Well, do you think I'm fat? Are they correct in assuming that you think that they're fat? Them being fat or not is not the only reason you might say exercises are good for you. You might be saying that for many reasons because maybe you were talking about yourself, that you think you're fat or maybe you were talking about the mental health aspects of exercise. Or maybe there's some other reason. There can be many, many, many potential reasons, many of which we don't even realize. That person just logically misconstrued and projected and assumed that you're saying that they're fat, where they have no evidence of that being the case. And you basically there's tell them no, There are many reasons why exercise is good. Not only because you might be fat. So the two problem here is there isn't a single cause, there may be multiple causes of truth. And also in this case, it does not logically follow that the person is saying exercises with for you is saying it precisely because the first person is fat or not digest, not connected, right? So essentially there are twisting the argument where it logically doesn't follow. That happens often in arguments when people want to switch topic or displays blame or do not want to address the issue directly. Your job is to recognize that there's just happened because you see the logical inconsistency and politely called them out on that and explain that it doesn't follow for these two main reasons. 6. Irrelevant argument: Now let's look at another logical fallacy, which is called the irrelevant argument, which is just a distraction. If you say something simple like exercise is good for you. And the other person says, Well, no, it's not. Hitler used to promote exercise, so it must be bad. So there's a lot of things wrong with that statement. The first thing, Hitler, is a case study. A case study is just one person. It does not represent the norm. The second error is that someone's opinion is irrelevant to the truth of that statement. The third error is just an absurd statement anyway. All it does, it doesn't logically follow and adjust serves to distract. And you might start arguing about the silliness of this point rather than your main point in your job. If you notice this type of distraction and irrelevant, the argument is to stop, stop this in the strikes before it derails the actual debate and bring things back to the debate because this point did not have a place in the debate, it should be discarded. 7. Argument from lack of knowledge: Now let's look at a situation we're on. The argument is made from a lack of knowledge. Let's say I made this statement exercise is good for you. Well, I'm not an expert in exercise amount of scientist, I don't know, biology too deep extends. It sounds very plausible. And people are inclined to believe that it's true. But it's an assumption because I don't have enough deep scientific knowledge to prove that it's true. So it's a plausibility, it's easy to fall for it. And of course, we fall for it all the time. Most people don't have enough knowledge to prove or disprove this, but it sounds good. It must be true. And the other person says, Well, I can't argue for or against it. I'm also not an expert. And if you make this argument out of lack of knowledge, well, it's an unfair statement. It's an assumption and you can't prove it in the burden of proof is on the person making the statement, not on the person trying to disprove them. By the same token, if the original portion is pretending to be an expert, they should be able to explain the logic and reasoning in a way that person beacon understand, instead of taking advantage of the fact that the person B doesn't have the knowledge to argue for or against it. If person a doesn't provide enough proof than the arguments should be realized as uncertain and assumption. It can still be valid because it can be self-evident. Some things are self-evident. You don't need to dig to the smallest molecule of science to realize. Exercise is good for you. It's self-evident. But at the same time, this self-evidence, this should be a distinction. It's not fact that we can know. It's an, it's a strong assumption we're making because it's self-evident. And we can assume it's true. But at the same time, there's room for this being false. 8. Case studies can be misleading: In this video, I want to talk about a very common logical fallacy that is trusting anecdotal evidence or case studies. You often see this when somebody is selling something to you, convincing you of something, or is actually trying to convince you of something. Like, for example, the news people give you an outlier situation. Case study is only an example of one thing happening. We tend to assume that that's the norm, but that's a wrong assumption. But really the truth is that it's only proof that one time like that something happened like that. It may very well be that every case in the world of such a thing happening when the other way in case studies can be 99.99999% wrong. Just one example. It's not representative of the overall truth. It's an outlier. It's not proof, it's only an example. So your job will be to balance it with statistics of more general, statistically significant population. If you think, no, this doesn't happen. Well, it does happen all the time. For example, most intrapreneurs, they think their business will succeed. Of course, they're most businesses fail. But a lot of people, my clients, for example, they come to me and they say, well if Zika, if Mark Zuckerberg built a social network, I can build 12, or if so-and-so built a successful mobile app, I can do too. I hope they can do too, but they're referencing case studies of tremendous successes, like one of a kind situations that are misleading where most businesses actually fail. This also happens when the news, the news usually reports things that are very stark and eye-catching, which is not typically representative of life. Most life is mundane and boring. Nobody would watch those news. So they have to shock you, give you unique situations so that you would watch because it's different. Also marketers, marketers use case studies all the time. They say, my client lost a million pounds using my a successful weight loss formula, but that could be just one person. So a lot of companies and people use case studies to help to convince others of something. But you have to be aware that case studies can be used in very misleading ways. 9. Statistics vs. case studies: In this video, let's look at the role of statistics versus role of case studies to help us understand and make sense of realities. And I'm going to use one historical quote to highlight the issues that are involved here. And it's gonna be a quote from one of the most evil people in history, Joseph Stalin. He has actually a quote that is very popular. He said, one death is a tragedy, a million is a statistic. What does that mean? Well, when you have one, that's a case study, it can give you a closer sense of the detail. You can understand what really happened. But when you just look at one case, it doesn't have statistical significance. And it can be very deceiving because maybe that's the only case that ever happened in the world. So it can be the most deceiving thing ever as well. And people will always show you case studies of things which may or may not be representative of the norm. In fact, a lot of news when they tried to shock you, they show you something that's outside the norm. That's a unique case study because it's noteworthy. You gotta be careful of not being deceived. And be very careful of thinking that because something is a case study, it's also a general rule we often fall into that it's very easy to fall into that, especially one of you wants to believe that when it's comfortable to believe that the way to balance that is to look at statistics, not the way most people do with how most people do it. Most people skim headlines of sources that are just on social media, not that credible. And they think, Oh, yeah, it's a statistic. But really a lot of organizations these days in governments, they keep actual real statistics that you can publicly access on a lot of different issues. There's independent studies on a lot of different issues. Those are the more credible sources to look into. Now, statistics tell you the broader truth. But this connect you with the reality on the ground. You lose connection with the people, with the individual stories. And statistics can be highly manipulated as well. If I tell you a statistic that a player has 100 success rate in shooting in games that his team wins. That sounds pretty good. Sounds like he's amazing. But because it's in games that his team wins, his team may be only won one game. And maybe otherwise if he played 100 games, he'd be a pretty terrible player like maybe just lucky. Statistics can also be very much manipulated. And a lot of times we have to make sure that they're generated by either correctly created scientific studies or accurate polls. The source of them is also should also be questioned. And when you try to form your sense of reality, you have to balance the understanding of realistic and representative case studies and accurately collected statistics. That's the best way to accept something as more or less a truth in the world. 10. Blindly trusting old assumptions: In this video, let's address the common issue of blindly trusting authority. And of course, most of us will say, no, I don't want, of course I don't. But it's impossible not to trust all of it because it's comfortable to just take existing truths. They can come from parents, teachers, even celebrities, even doctors, or established experts. They can be wrong, their knowledge can become outdated. Their knowledge can apply to different situations. There's all kinds of ways they can be wrong. It's very easy to take authoritative sources as sources of the truth. But we have to keep in mind that everyone, first of all, has their own biases. Some people are trying to sell us something. Some people are trying to make us do what's better for them, not what's better for us necessarily. And sometimes people just suggest things that we're good the way they were done before. For example, when I'm doing software engineering and software engineering, there's a lot of tendency to copy and paste old code that works. But it's one of the biggest fallacies and source of bugs in software engineering because one piece of code that works somewhere else, the copy and pasted, there may be some details that don't apply to the new situations where your pasting it and you introducing new policies, new bugs into that code which has worked before. So you always have to reassess and re-evaluate if we use that same example of the code cannot be written better. Is there a new technology that can accomplish the same thing in a different better way? And there's a really strong tendency for things that used to be true, to become false today. In every field. The way it started is not the way it is now. It evolved and many early assumptions probably became wrong over time. So we don't want to do is sort of become dinosaurs believing old things. And if we just accept things as they are, because that seems like an authoritative source, then we're setting ourselves up for actually believing something that's not true. 11. Correlation does not imply causation: Now let's go over another logical fallacy. This one, a lot of people know, correlation does not imply causation. What does that mean? Well, if B happens after a, it's not a proof by itself that a caused B. An example of that would be, let's say I drink green tea yesterday and today my skin is way better. Does that mean that it was because of the green tea? It can be, but it would be too early to believe that MySQL may have improved from many other factors. We don't know. Maybe it was just a random chance. Maybe I got better sleep that same day. Maybe it was my diet, maybe I got more sunlight. Ebay had less stress levels, maybe it was a 100 other things, or maybe it wasn't any one thing, but a combination of things. You see, it would've been too premature to assume that it was because I drink green tea. You want to be careful of that assumption? When some things are correlated, it doesn't mean that one causes the other. 12. Wishful thinking: The next logical fallacy is something we all fall into wishful thinking or consoling ourselves. These are nice statements like all people are good. Everyone wants love. Their generalizing statements. They don't take particularly much thought to say. They're more just wishful thinking and kind of protect us from thinking about difficult things. It's obvious when people will make such statements that these kinds of statements can be discredited because they're just statements out of thin air. And often when people make such statements, it can be self-evident that that person is saying it didn't examine it that much. Because it's actually really hard to examine such broad statements and prove them logically. Usually if people are quizzed why they make such statements, they give reasons that are deeply insufficient to support such broad statements. With these kinds of statements really do is they protect us from the challenge of thinking deeply about things or from having negative thoughts about things. It's much easier to have pleasant thoughts and not bother ourselves with these negative potential things like the opposite of all people are good. Nobody wants to think about that. Even though a lot of these wishful thinking statements sound nice and there's a tendency to want to believe them. Really. It's just something people make up. There's no logical evidence to back it up. Most of the time. 13. Being uncomfortable with having negative thoughts: In this video, let's tackle a common pitfall that some people fall into. And these are very similar to the people who fall into the wishful thinking. This is avoiding confrontational or negative arguments. So thinking things like, not all people are good and some people want the worst for us. Maybe that's true in the world. But some people find those kinds of thoughts very hard to have. And they miss out on half of the world's truth. It might not hurt them, maybe doesn't have a particular impact on their life. They can just go, they just go happily and merrily along with their life. But philosophically, and if, if a person wants to really think through the world, understand the world, understand their thoughts, then they miss out on half of the possible truth. They're just not giving themselves the potential to access some ideas. That's the problem with this. You just have to look at these without emotion and be brave because you own the truth to yourself. Because you can't be afraid of thoughts that don't feel good to have. Because if you let that happen, what's gonna happen is some people will bully you. Because in the next video, what we're gonna do is we're gonna look at a situation where other people bully the people who just want to have good thoughts into agreeing with that. Because as soon as they agree that pressure and anger is relieved from the buoy, the buoys take advantage of this. And since you understand the wishful thinking and the voiding and now this avoiding confrontational argument, Let's look at the next one where the people who can only have pleasant thoughts and no confrontational thoughts can get bullied into other people, making them think what they want them to think. 14. Non-confrontation and giving into bullies and threat of anger: Now that we went over the issues with wishful thinking and being afraid of entertaining negative and unpleasant thoughts. I wanted to give you an example of how that puts us in danger of getting pressured, threatened by bullies. And I'm going to give a somewhat of a controversial, but a very stark example that I can think of in recent years. And that is, do you remember a few years ago there was a terror attack on Charlie Hebdo newspaper and there was a slogan afterwards, just whoosh Charlie. And that's where they published some cartoon. Suddenly Poe didn't like the cartoon. And those people who didn't buy liquor to, and what did they do? They, they went into the newspapers headquarters and two guns and killed a bunch of people. Before that, Charlie Hebdo practiced freedom of speech, freedom of thought in any thought was on the table, even negative thoughts or grotesque towards equally with positive and good and happy thoughts. Everything was okay. They were philosophically open. And that's one of the great values of modern societies and also of people who are intellectually curious. But after that happened, some other publications around the world, of course, didn't budge, and they maintained their philosophical integrity, their openness. But many publications around the world appeased the bullies because they were afraid of future threats. Of course they didn't announce, Hey, we're going to appease you, were going to stop publishing controversial things, but they quietly stopped publishing controversial things. So we lost a lot of freedom of thought, freedom of expression. Because when freedom of expression goes, freedom of thought follows soon after because some things are just no longer discussed. It's not on our radar, we forget about it. And we lose a lot of philosophical integrity and a lot of truth. If you think, well, this is just one big situation that happened. While this actually happens all the time. People often appease others before any threat or angry or even happens because a lot of people who are naturally predisposed to anger or naturally predisposed to using bully tactics are pressuring others. They know that they can get a lot just by bullying or pressuring others because others just given because they don't want to have the negativity. Who wants to be pressured or bullied? Nobody, a lot of people would give up a whole lot just to have that pressure or bulli threats relieved. And that's what they do. And then the people who get bullied, they learn that they're okay as long as they appease the buoys. The bullies learned that they're doing great as long as they keep bullying. And a lot of people who are afraid of the bullies, they appeased the bullies, even at the thought of arousing anger before any anger even happens. And so much so that they just learned this and it becomes a part of their natural behavior. So that if you ask a lot of them, why are you appeasing such and such people or person or group? They will they will honestly say that they're not, because they don't even necessarily realize that that's actually what they're doing because it just became part of their being. But now realizing this, you have to dig a little deeper and see, okay, Any thought should be at least potentially evaluated, it might get discarded. You don't have to go with every idea. But at least we should not be afraid of having thoughts because we want to preserve that great, the greatest potential of ideas out there. 15. Political correctness: Another potential pitfall is using political correctness in a 100% of our lives. Well, political correctness is amazing for helping us not offend others. It gives us guidelines with which to be sensitive to other people. So it has tremendous goodness to it. It also helps to protect organizations and people from getting in trouble because it's sort of a guideline and it helps people not get offended. She's all good so far, The problem arises. This is a big one that you start to have disallowed thoughts, and these come with a bullying threat. What happens if you step out of political correctness in school, at work in your life, you're going to have some adverse effects. And of course people avoid that. Nobody wants to have those threats, those adverse effects. And so they start not saying things. And those things that you can say also soon after become things that are not allowed to think, they become negative thoughts, thoughts not accepted by society. And so we started to have a smaller society. Then the other bad thing is political correctness actually becomes a tool to shut some people up. So some people start using more and more and more political correctness no longer and not to offend or four, it's good purposes. But actually to keep some other people quiet, the very same people that do not want to steer the boat, do not want to cause anger, do not want to get pressured, and certainly don't want to have bad things happen to them at school, at work and so on and so on. In our society. I think it's easy to observe that there's a proliferation of this offended culture. Everybody's offended, everybody wants political correctness. So it's used as a means to achieve goals. Now, no longer the goals are sensitivity and just simple and just simply not offending, but to control the overall discourse and the lines of thought in a society. 16. Power of slogan: In this video, I wanted to begin talking about the power of something like slogans, catchy songs, cliches, hashtags, even memes, basically something catchy that people just keep repeating to each other and playing over and over in their mind. Because it begins working like an affirmation. And this is also something that positions do all the time. They create little sayings, middle names for things like memes. They may or may not be true, but they sound plausible and catchy. And they're highly expressive. And they're fun to repeat. When you repeat something a lot, it becomes like an affirmation, which is something you tell yourself over and over and over, and then you begin to believe it. If we think and say something often we begin to believe it. And there's an extremely famous historical quote by a very famous politician. If you repeat a lie long enough, it becomes the truth. You may or may not have heard this quote before. It comes from a very evil person, very evil. This is from the second Nazi in command, Joseph Goebbels. It comes from people like that who were openly talking about how to make people believe what you want them to believe. The very same people use the power of songs to manipulate different messages. And if you think this doesn't happen now, this happens now all the time in politics, in music, in advertising, in every field. Precisely because both additions and marketers, they know the power of catchy things in everybody wants you to believe something that's good for them, which is not necessarily consistent with what the truth is. Sometimes it doesn't like when people try to sell you cigarettes back in the day, Well, they needed to make you think it's good for you in that example that you don't use song, but that's just an example of how if they're trying to sell things to you, it's not, it's not necessarily good for you. So just be aware of any politicians, governments, companies, marketers, organizations, anybody selling to you of them using hashtags, cliches, catchy songs and slogans to impose wherever they want people to think and feel onto you. 17. Can't disprove a negative: Now let's focus on this concept in logic and philosophy. That there's this idea that you cannot disprove a negative. For example, if somebody asks you to disprove that there are no green people, to prove that there is a green person, it will be very easy. All you have to do is find one green person and say, there is a green person. But if there isn't, one person says, disprove that out of the 6 billion people on Earth, There's not one that's green. It's impossible to disprove it because you have to literally go through all of them. And maybe in the future there might be one. So in precisely because at some point you may discover one, you can never fully disprove that negative statement. If somebody makes an outline this statement like this, and says, If you came this, prove it, it must be true while the burden of proof is not on you, it's on them. The argument you can't disprove me, that isn't valid and you can't let people make just outlined their statements and Boolean or pressure you into trying to disprove it because it's just a it's just not possible. Which you have to do is just say, hey, prove that there is a green person. Finally one. Then I'll believe it before that, we can disregard this argument. 18. Group belonging confusion: This video may be a little controversial. It's about our confusion about who is really our in-group and who is really our outgroup. Because if you look at evolution and thousands of years ago, even other species, if you look at monkeys, well, we have our monkey group from our side of the mountain. And on the other side of the mountain there is another group of monkeys. There are competitive tribe in that sense, it's much easier to see who's more on my team. In today's world, it's a lot harder, but a lot of behavior has to do with our biology and psychology and evolution. Evolution is about survival and passing on genes. A lot of behavior can be explained through that. And everything that I learned here, I actually learned from one of the top experts in behavioral psychology and biology, Robert Sapolsky. I took an online Stanford course, this course right here that you can also find. If you search for introduction to human behavior biology, it's a Stanford course. You can see there's 26 videos and each video is about one or two hours long. So it's essentially like taking a college course. But this guy right here, he's the top, maybe the top or one of the top world experts on human behavior biology. Essentially understanding human behavior biologically. If you don't have the time to do that, Just watch my video and I'll give you a few of the important takeaways. Because this is quite an investment. It took me about 30 hours of actual listening time to take the whole course. When we look at things biologically, a lot of our behavior is about our survival so that we can reproduce. And being in a group that's safe helps our survival a lot in animals, groups are easy to understand in humans, it's quite complex because we have a lot more factors to go by. We look for and confuse similarities. Generally in that course, they talked about a lot of studies that show that people like similar people, people with brown hair, when shown pictures of other people with brown hair versus other kinds of hair, show that they liked people with brown hair. More. People who talk like us, people who liked things like us. We like them more. And it's very common. For example, let's say you meet a stranger, you don't know anything about them. But they were a baseball hat that says Yankees. And you have a baseball had that says Yankees. Well, you liked them because they're kind of like the same as U. You have something in common. The challenge that happens is that we have so many points like that. For example, I like soccer and I liked my family. If I meet a soccer fan, then we have something in common. We can bond over that. But at the same time, what if my family member likes a different team or rival team? Arrival team? If it was just rivals and soccer, then we're rivals. We don't really like each other. But at the same time it's a family member. I like family members a lot and it becomes really easily confused with humans. This behavior is extremely complex because we have so many things like a tribe of monkeys. They don't have soccer, they don't have hobbies. They just have family. And they understand the monkeys that are next to them. They have few factors to confuse them. We, on the other hand, have an infinity of factors. We like baseball, we don't like soccer. We'd like swimming. We like don't like running. We'd like reading. We don't like reading. I mean, there's a million things. Especially when you get to topics that exacerbate these issues like politics, which I'm not going to get into here, but obviously, this is quite divisive. So be aware that our brains are highly confused over group belonging. And also people who need to manipulate our brains. Deeply aware of that. Politicians, marketers, people who are selling to us, anything like that. People who are trying to convince us of things, anything like that, you should be aware. Is there any group belonging confusion happening here because obviously, people who want us to do what they need us to do have to make us like them first and feel like we have something in common. So what you have to be aware of, I think as a basic, this is obviously a basic introduction that other courses like 30 hours long. But as a basic, just make sure that at least people aren't manipulating this group belonging. And whenever they're trying to convince you or make you do something. 19. Ontology, Epistemology, and bias: In this video, let's take a look at a couple of fields and philosophy and see how they relate to our biases. There's one field called epistemology is the theory of knowledge. How do you separate things that you believe versus things that are true? Where's the overlap? Because all the things that we believe, we think they are also at the same time true. But in fact, only some things we believe are actually true. We don't actually know what they are because we believe that they are true when we're honest with ourselves that we believe something is true. We think 100% of the things we believe is true, whereas that's actually not the case. That's the study of epistemology. This is an entire branch and philosophy that has been studied for 2 thousand years. So if you're interested in this, you can look in this further in this course. We can't really get into it. The other thing though that I wanted to bring up is the another branch in philosophy called ontology. And that's the study of being, of existence, of what, what does it mean for something to be true, for something to exist? And it might seem like abstract and silly questions and yeah, maybe they are. But there's a very famous philosopher, Rene Descartes, and he has a very famous quote which goes like, I think therefore I am, some people think that it means that because his thinking and because of his intelligence, that's all he can be in. It's actually not. That is the question that he posed as well. Sometimes I make mistakes. I look at the blue sky and it looks blue, but then it's not blue. The air is wide, but why is the sky blue? So there's all these things, but what do I really know? There's all these mistakes. So he attempted to take out everything that has a possible flaw in knowledge. And he realized that the only thing he can know is that when he thinks he is, because there must be something that's doing the thinking and he's tripped out everything else. He says The only thing I know is that I have to add something has to exist because something is doing the thinking. And he has a very famous book, the meditation, where the meditations where he actually reconstructed the entire world based out of that one fact that one side came in the first chapter, and in the ensuing chapters, he reconstructed the entire world using logic and using what he knows and building on top of that. Now of course, there are some flaws in his thinking. A lot of people have poked holes in some parts of it, but it's been around 500 years since he wrote it and it's still widely taught in universities and it's regarded as one of the seminal works in these fields. And of course, a lot of people are still familiar with that very quote. I think therefore I am, even though it's a widely misunderstood quote. Now how does that relate to us? Well, we have to understand strong belief isn't lowing. Also. To understand our biases, recall that all kinds of emotions make us over correct to the side of that emotion. If we're excited and we're feeling enthusiastic, we're going to over correct to the positive. We're gonna believe that whatever we assume is gonna be greater than it's actually going to be if we're sad or depressed, or if we're in a panic mode, then we're gonna assume things are gonna be worse than they're gonna be. Also one way to mediate that is to not make decisions in the moment. Not to make compulsive or impulsive decisions, but wait, wait until you can think clearly and at least make more or less logical thought out judgment. Because even in his book, The meditation's, Descartes at some point says, Well, how do you go? The fire is hot. Put your hand in there and you'll see the fire is hot. So some things we do have access to and we don't have to be in our lives. We don't have to be as abstract and asphalt, philosophically strict as he is in his book. So some things we know it suits suitors room for common sense. Even though having said that common sense, common sense can be extremely flawed as well. So hopefully this gives you a little bit of a framework with which to think through issues of what we believe, what is actually true and how to start to uncover and make sense of what might not be true. Where made my, there'll be some inconsistencies.