Knowing Bros Episode 444 : Kim Ji Yoon, Chang Dong Seon, Kwak Jae Sik.
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00:00Our brains tend to make a lot of mistakes.
00:02Then, is it the eye or the brain that makes mistakes?
00:05In most cases, it's the brain that makes mistakes.
00:07It's the brain that makes mistakes.
00:09How many colors are there in a rainbow?
00:10Seven.
00:11Seven? Are you sure?
00:13Isn't that what humans have decided?
00:14That there are seven colors?
00:15Who would have decided that?
00:16At the Crayon Shin-chan company?
00:19Michael Crayon?
00:20I would have said that there are 44 colors in a rainbow.
00:22What's funny is that
00:23in our country, since we were young,
00:26we learned that there are seven colors in a rainbow.
00:29It's just that our brains make seven drawers
00:31and look at them as red, orange, yellow, green, blue, and purple.
00:35In the past, in the Joseon Dynasty and the Goryeo Dynasty,
00:37if you look at the records,
00:38they said there are five colors in a rainbow.
00:41There are five colors.
00:43And even in other Scandinavian and North European countries,
00:46there are six colors in a rainbow.
00:47There are five colors.
00:48It's all different.
00:49If the same light comes to me with the same wavelength,
00:52I think everyone will experience it the same way,
00:55but in fact, each brain
00:57makes several drawers
00:58and we look at them differently
01:00depending on what kind of experience we have.
01:03I want to say something else.
01:04Are you a relative of Jang Hwang-sun?
01:07No, I'm not.
01:09He's an actor.
01:10Actor Jang Hwang-sun.
01:11He's a real teacher.
01:14He's a real teacher.
01:15But one of the most common misconceptions we have in our daily lives is
01:19that everyone will think that way.
01:23I think it's a fantasy of the majority.
01:25I thought it was going to be really funny.
01:29There are a lot of cases where it's not true
01:33that everyone thinks that way.
01:35But I'm going to show you this mathematically.
01:39I'll just pick three people who will be popular.
01:42Hee-chul, Young-chul, and Ho-dong, can you come forward?
01:44Why are you calling Young-chul and me together?
01:46I think there are two outsiders.
01:48I'll call Ho-dong, too.
01:50These three are super popular.
01:52They're all friends.
01:54So all the people here are friends with these three.
01:58But the people sitting here
02:01are friends with the people next to them.
02:04And we've decided to go on a trip.
02:08We're going to decide whether to go to the mountains or the sea.
02:11The first three people decide.
02:13Mountain or sea.
02:14I like the mountains.
02:15You like the mountains?
02:16There's a valley, too.
02:17Mountain.
02:17The rest of the class thinks we're going to the sea.
02:22So when we vote, how many votes will we get?
02:25Three people who want to go to the mountains.
02:27We won.
02:27It's eight, right?
02:29So if we just vote anonymously,
02:31the result will be that we're going to the sea.
02:34But that's not it.
02:36Our class is asking
02:38if there are a lot of people who want to go to the mountains
02:40or if there are a lot of people who want to go to the sea.
02:44Team A has decided to go on a trip.
02:47We're going to decide whether to go to the mountains or the sea.
02:50The first three people decide.
02:52Mountain or sea.
02:53I like the mountains.
02:54You like the mountains?
02:55There's a valley, too.
02:56Mountain.
02:57The rest of the class thinks we're going to the sea.
03:01So when we vote, how many votes will we get?
03:04Three people who want to go to the mountains.
03:06We won.
03:07It's eight, right?
03:08So if we just vote anonymously,
03:11the result will be that we're going to the sea.
03:13But that's not it.
03:15Our class is asking
03:17if there are a lot of people who want to go to the mountains
03:20or if there are a lot of people who want to go to the sea.
03:24And each of you know where your friend wants to go.
03:29From Ji-yoon's point of view,
03:31the three of them are friends.
03:32Jae-sik is a friend, too.
03:34Ji-yoon, do you think there are a lot of people who want to go to the mountains
03:37or to the sea?
03:39There are a lot of mountains.
03:40There are a lot of mountains.
03:41What about Jae-sik?
03:43I live in the mountains, so there are a lot of mountains.
03:45So there are a lot of people who want to go to the sea,
03:50but my brain only samples what close people around me think and votes,
03:56so the result is the opposite.
03:59Thank you for coming out and going back in.
04:01That's it.
04:02What is this?
04:04No, I'm not close.
04:06He's a foreigner.
04:07What is this?
04:09What is this? I was aiming for two people.
04:13In a way, the opinion of a person with a loud voice is too much.
04:16There's something like that.
04:18That's why most Koreans don't care,
04:22but if people who write a lot of comments are the issue,
04:25it feels like that opinion is a majority opinion.
04:30So one of the problems in the world we live in is that
04:33we're going to think like this.
04:36People are like this.
04:37I believe that through a lot of information,
04:40reality is the opposite as we just saw,
04:44but there are a lot of cases where we only believe that.
04:47But I think one of the biggest misconceptions we have is that
04:53in a way, the opinion of a person with a loud voice is too much.
04:56There's something like that.
04:58That's why most Koreans don't care,
05:02but if people who write a lot of comments are the issue,
05:05it feels like that opinion is a majority opinion.
05:10So one of the problems in the world we live in is that
05:13we're going to think like this.
05:15People are like this.
05:17I believe that through a lot of information,
05:20but reality is the opposite as we just saw,
05:23but there are a lot of cases where we only believe that.
05:27But I think one of the biggest misconceptions we have is
05:32that it's a world centered around me.
05:35I'm thinking a lot about living well alone,
05:39but in reality, our brain evolves into a social brain,
05:42so we really only look at ourselves.
05:44So no matter how much money you make,
05:46no matter how much profit you make,
05:48your health and happiness will be ruined.
05:52In fact, research has shown that loneliness and loneliness
05:56are as harmful as smoking 14 cigarettes a day.
05:59There are more than 10,000 people who die of suicide
06:03than those who die of COVID-19 during the COVID-19 period.
06:06People don't know this, but this is a problem.
06:09Let's look around and see if our minds are okay.
06:13I'm trying to do this campaign.
06:15I hope many people who are watching this can join in.
06:19I want to get help, so I'm going to talk about this together
06:22and finish the lecture on the misconceptions we have.
06:25Thank you.
06:29Now, the transfer students who worked hard today,
06:33I prepared a gift for the transfer students.
06:39Is it my misunderstanding to think of this as a gift?
06:42That's right. I think it's my misunderstanding to think there's something expensive in it.