The Observer Theory

Before We Begin

This piece tries to answer a few questions.

• Why do I hold back from things I want to do, just because I'm worried about what others think?
• Why does something that was taken for granted until yesterday suddenly stop being so?
• Why does someone who wouldn't budge when you argued with them change once they see it for themselves?
• Why does the world sometimes change very slowly, and other times in an instant?
• What do movies like "The Matrix" actually do to the world?

These questions seem unrelated, but in fact they can all be explained by one principle. This piece unpacks that principle, step by step.

The word "knot." This piece isn't only about people. We call anything that chooses its own next move a "knot" — cells, groups of friends, companies, countries, forests. It's because they look like many relations tied together in one spot. The principle here should hold just as well for a person, a company, or a cell. So along the way, we'll give examples that check, "Does this work for things other than people, too?"

How to read this. The bold text in each chapter is that chapter's key point. Any unfamiliar words are collected in the glossary at the very end.

Chapter 1: The Heavier Side Drives

When we choose something, several "eyes" are weighing on that choice.

• My own eyes — me looking at myself and judging things directly. In this piece, we call this the self-field.
• Others' eyes — parents, friends, teachers, the mood at school, society's common sense, a country's culture, even the language we speak. Every gaze that weighs on me from the outside. In this piece, we call this the other-field.

This principle is the foundation of the whole piece.

The steering-wheel principle. My next choice is decided by whichever of the eyes weighing on me is heavier.

If others' eyes are heavier, I move the way others' eyes say. If my own eyes become heavier, I move the way my own eyes say. When my own eyes take the steering wheel, we call it "regaining sovereignty."

Things that are newly born move by others' eyes. A baby barely has eyes of its own yet, so it moves by its parents' eyes. For the parents, those are their own eyes, but for the baby, they're others' eyes. Then, as the baby piles up experiences of seeing and judging for itself, its own eyes grow heavier. This isn't something wrong — it's how everything starts out. A newly formed cell has what it will become decided by signals from the surrounding tissue, and a newly founded company moves according to industry common sense.

This isn't about good or bad. This principle doesn't say "people who live by their own eyes are better," or "you get your own eyes when you grow up." It's simply a principle for seeing which side is heavier. Like a scale.

And one more thing. Steering with my own eyes once doesn't settle it for good. Even a view I once decided with my own eyes, if I repeat it long enough, I end up just pulling it out and using it without looking at it again. Then it's no longer my own eyes right now — it's words left behind by my past self. So sovereignty isn't something you get once; it's there each time you look again, now. We'll look at this more closely in Chapter 3.

My own eyes become others' eyes for someone else. The eyes I use to look at myself are, to another person looking at me, a gaze coming from the outside. So we are always placing weight on each other. The rest of this piece is all about how that weight moves back and forth.

Chapter 2: Those Who See and Those Who Pass It On

"Observation" isn't just looking at something. Three things have to come together.

1. Divide — draw a distinction, like "this is right, this isn't."
2. By your own yardstick — make that distinction from your own direct experience, by your own standard.
3. Leave a mark — that distinction leaves an effect on your next choice.

Someone who does all three we call an observer, and someone who takes a judgment made by someone else and passes it on as is we call a relay.

The same person differs from topic to topic. I might be an observer when it comes to soccer, since I've actually played, but a relay when it comes to stocks, just passing on the news. Everyone is like this.

Count the "seeing eyes," not the number of people. If a hundred people share the same single article, the eyes that actually saw are pretty much just that one reporter. If one person posts comments from a hundred accounts, that's still one. On the other hand, if ten people who don't know each other each experience something directly and say the same thing, that's a real ten.

Some things everyone follows even though nobody believes them. Sometimes everyone in a class goes along with something because they think "everyone thinks that way," but if you actually ask each person one by one, nobody really believes it. Something like that is kept going purely by passing it on, from start to finish.

There's no such thing as a pure bystander. The moment I look at someone, I'm seen by them too. The yardstick I use to judge others wraps back around to me. So even when we're just sitting still, we're showing each other something. This is the starting point for Chapter 5.

Not just people. A cell distinguishes the signals sent by neighboring cells using its own receptors. Even the same signal is read differently if the receptor is different. A market distinguishes by price, and the body's immune system distinguishes "mine" from "not mine."

Chapter 3: My Own Eyes and Others' Eyes

Others' eyes mostly live inside my head

When you think, "If I do this, the others will think I'm weird, right?" — is that gaze what your friends are really thinking? Mostly, no. It's others' gaze as I imagine it. In reality, your friends may not pay as much attention to you as you think, and they might even want to do the same thing.

So the first fight with the others' eyes that hold me back happens not outside but inside me. How others really see me can only be confirmed through what they actually say and do.

Four ways of seeing myself. A person has about four "me"s.

My own eyes are fast; others' eyes are heavy

What I make up my mind about reaches my next action right away. Others' gaze is heavy because there are many people, but it's slow because it comes back through words and reactions. That's why something like this is possible: while others are saying "no way," I go ahead and do it first and leave a result, and others only see that result later. Most of the moments when the world changes come from this time gap.

My past self can become someone else, too

Even a view I once saw and set up for myself, if I repeat it long enough, I just pull it out and use it now without weighing it up again. Then it's not my judgment right now — it's relaying my past self. My past self is the "someone else" who is most like me, so it becomes the hardest-to-notice kind of others' eyes.

The more successful you are, the easier this gets. An answer you earned by living it feels incredibly solid, but the source of that answer is just you. On top of that, once you become famous, lots of people repeat your words and say them back to you. It sounds like everyone agrees, but in fact it's the echo of your own voice. This is why successful leaders drift away from reality.

Be suspicious when this happens.

• Even when something new happens, your answer always goes back to old stories.
• When you hear a different opinion, you sort people into "my side, their side" before weighing it up.
• When you trace back the things you hear, they turn out to be things you said yourself.
• You spend less time actually trying things and getting your hands on them.

How to see again. Go somewhere your taken-for-granted doesn't work, go see something new for yourself, leave room for others to show you things, and listen to people who don't just repeat your words back. This is what people call a "beginner's mind."

Not just people. Our immune system remembers a virus it meets for the first time, but when the virus changes, it sometimes responds with the old memory and blocks it less well. A company that once succeeded big missing a new trend because of the very way it succeeded has the same shape.

Chapter 4: What Hardens

Some ideas change easily, and some are so hard they seem like they'll never change. That hardness (in this piece, firmness) is decided by three things.

Firmness = the number of different eyes × how directly they experienced it × how much they point the same way

• The number of different eyes — how many people saw and judged it separately, on their own. Passed-on words don't count.
• How directly they experienced it — heard it < saw it < used it < live depending on it.
• How much they point the same way — whether those eyes are looking in the same direction.

So even if tens of thousands of people say something, if it's all passed-on words, it's surprisingly weak; and even if only a few people each actually tried it and speak up, it's solid.

What "everyone says it won't work" really is

"Everyone says that won't work" sounds incredibly heavy. But if you take that "everyone" apart one by one, here's what you find.

• Most of it is passed-on words from people who never tried it themselves.
• Mixed in among them are actually people who think it will work but can't say so. They stay quiet because they're afraid that if they stick out, they'll look weird.

So the voice saying "it won't work" is lighter than it looks. It looks thick on the outside, but the shell is thin, and underneath it there may be a layer of unspoken agreement. Silence is neither a yes nor a no.

But this only applies to things that have set because of people's thinking. Things that are truly hard, like gravity or the limits of the body, we'll look at separately in Chapter 8.

The taken-for-granted

The taken-for-granted is a belief that keeps going just because people copy each other, without anyone looking at it again. The taken-for-granted has three features.

• Almost nobody has seen it directly; it's held up by people passing it on.
• It's not that there are no counterexamples — they're just somewhere out of sight.
• It sits in the seat of "the right answer," and judges other ways as "wrong."

The lifespan of the taken-for-granted. Let's call the time it takes for something taken for granted, after it meets a counterexample, to lose its seat as the right answer for half of people "the half-life of the taken-for-granted." The more people pass it on, and the more the counterexample can be tried out directly, the shorter it is. On the other hand, something taken for granted that is held up by things that are truly scarce (land, time, the body) doesn't melt easily.

Not just people. In science, too, a theory that was once the right answer moves to the seat of "a theory that's right only under certain conditions" once contrary experimental results pile up. Newtonian physics didn't disappear; it stepped down to one seat among others.

Chapter 5: Showing and Seeing

There are four ways my thinking crosses over to another person.

Why does showing beat talking? When you chatter, a word fight breaks out in the other person's head: "your words vs. what I already thought." But when you show them directly, they judge with their own eyes. Then their original view gets pushed aside not by words but by what they saw themselves. And if they choose it, it becomes not my idea but their own idea.

The heavier you are, the more careful you need to be. When someone with a lot of weight — a parent, a teacher, a company boss, a celebrity — shows something as "just my way," the people receiving it easily take it as the right answer. So the heavier you are, the more you need to show "you can do it differently" as well. We call this permission. Respecting different opinions, fixing things when you're wrong, treating other choices as "different" rather than "wrong" — these are ways of showing permission.

The one showing has to be real. If I'm actually living by passing on someone else's yardstick as is, then what I show is, in the end, just passing on that yardstick too. That's why "living it first myself" matters.

The power that gathers isn't mine. If someone shows something great and people flock to them, it's not that people got sucked into that person — each of them saw it directly and chose the same direction for themselves. That power belongs to each of the people who gathered, and it stays only as long as what was shown keeps holding true. Mistake it for "my power," and celebrity syndrome sets in.

Fake numbers aren't showing. Bought likes and inflated view counts only make people pass on "they say others have already seen it"; they don't make anyone see it directly. So nothing hardens, and the moment it's found out, even the real interest that had attached to it vanishes all at once.

The four things we do to each other

Even when we're just sitting still, we're showing each other something. What it does comes in four kinds.

The same action can become any one of the four, depending on how it meets the other person's taken-for-granted. Showing up to school every day is firming in a class where everyone does that, but it may mean something else to a friend who's thinking about a different path.

So for each other, we are both a gaze that firms up what's taken for granted, and a counterexample that loosens it. Things like the mood of a class, a school's culture, or a country's common sense aren't stored somewhere either — they last only as long as we keep showing each other the same picture.

Chapter 6: How Counterexamples Change Minds

A counterexample is a result someone actually achieved, contrary to the belief that "that won't work." A counterexample is always a trace of someone moving by their own eyes rather than others' eyes.

When a counterexample becomes visible, the taken-for-granted doesn't disappear — it steps down from the seat of "the right answer" to the seat of "one way among many."

When you see a counterexample, weight moves in three places

Someone with a set belief is in a state where, on that matter, others' "it won't work" weighs more than their own thinking. It only feels like their own thinking because they've heard it for so long. When they see a counterexample, this happens.

1. Their own eyes appear. Because they saw it directly, their own judgment weighs on the matter for the first time.
2. The outside gaze splits. The gaze of the person who pulled it off now weighs on them too, and that one is on the "it works" side.
3. "Everyone" shrinks. "Everyone says it won't work" turns into "Not everyone, after all."

The moment the total of these weights tips to the other side, their mind changes. The reason a single counterexample doesn't change things right away is that a long-set view feels like your own, so number 3 doesn't shrink easily.

There are two kinds of change

From the outside, both look like "they changed their mind." That's why change always comes like this: at the front, people who saw it directly change by their own eyes, and behind them, many people change all at once by following them. It's like a flock of birds: when a few at the edge spot danger and turn, the rest turn too just by watching their neighbors, even though they never saw the danger. And when there are more and more people who changed by following, that becomes a new taken-for-granted.

Changing inside and moving on the outside

Even if your mind changes, you can't act on it right away. That's because there are two thresholds.

Changing inside is easy because nobody can see it, while moving on the outside is hard because the moment it's visible, you get others' reactions.

"That's wrong" vs. "Take this path." There are two kinds of counterexamples, too. A breaking counterexample shows "that belief is wrong" and changes you inside. A path counterexample shows "take this path" and gets your body moving. If there's only one path to take, no one moves no matter how many breaking counterexamples pile up. What really moves people is the path counterexample. A demo showing that electric cars are possible is a breaking counterexample; an electric car you can buy right now is a path counterexample.

Two roads when things start to waver

When the taken-for-granted starts to waver, the people who were holding on tight to it go one of two ways.

• Gripping tighter — denying the counterexample, attacking the person who showed it, longing for the old days. It's because they feel that belief is "who I am."
• Letting go — acknowledging, "This belief protected me all this time," and accepting that it's now just one choice.

So in times when the taken-for-granted is loosening, a sense of liberation and hostility grow together. There's no need to think badly of people who grip tighter. It just means that much was standing on that belief.

Chapter 7: One Loop

If we gather everything so far into one loop, it looks like this. Steps 1–3 happen inside one person, and steps 4–7 happen between people.

When, inside one person, their own eyes grow heavier than others' eyes and they leave a result, that result is seen by other people as a counterexample. Inside the other people who see it, the same thing starts again.

1. Noticing. When you think, "I can't because of this," you look again and notice, "Ah, this is others' eyes that sound like my own voice." You can't change a driver you can't see.
2. Holding on. You look at a future that doesn't exist yet as "already so," and keep acting even when others say it won't work.
3. Pulling it off. You leave a result that other people can each see directly. The more they can try it out directly, the stronger it is.
4. Being seen. That result spreads. From here on, it's other people's business.
5. Seeing. Another person sees it directly, and the three movements from Chapter 6 happen inside them. For that person, this is step 1, noticing.
6. Spreading. People who thought the same thing but couldn't say it come out: "Me too!" It's like dropping a single sugar crystal into sugar water that's fully saturated, and it all hardens at once.
7. A new taken-for-granted. When there are more and more people who changed by following, the new idea becomes the taken-for-granted again.
8. Setting again. For one person, it becomes habits and the past self; for a group, it becomes rules and institutions. That becomes the "others' eyes" that someone will notice next time.

The very first time matters most. Once the loop goes around once, three things are left behind. The memory of having pulled it off becomes the next starting point, the threshold for going back to the old way gets higher, and the people who saw it together make the next round of opposition lighter. That's why going from 0 to 1 is the hardest and the most important.

When the weight tips inside one person, a counterexample is left outside, and inside another person who sees that counterexample, the weight tips again. And what tipped, once it sets, becomes the next round of others' eyes.

Chapter 8: What You Can Change and What You Can't

This isn't saying "if I believe it, anything is possible." Hardness comes in layers.

What Elon Musk got past was the industry's thinking: "Electric cars won't sell," "Rockets can't be reused." He didn't beat the laws of physics; he used the laws of physics as they are to land rockets again.

The condition for winning. To change something that has set because of people's thinking, this has to hold.

My own eyes + the eyes of people who looked the same way as me > the number of different eyes set in that place × how directly they experienced it

Five reasons for failure.

1. Mistaking the layer — mistaking a limit of the body or of physics for people's prejudice, and charging at it head-on.
2. There was no hidden agreement — almost nobody wants the same thing, so even when you produce a result, no one joins in.
3. Dressing up numbers without results — fake numbers don't make anyone see directly, so nothing hardens.
4. Your own thinking has set — stuck in a past formula for success, you can't hear opposing views and can't change course.
5. The path was blocked — there's a counterexample, but people have no real path to take, or someone hid the counterexample from view.

Can you tell before the results are in? Once you know the result, it's easy to say, "See, that's why it worked." Real skill is telling in advance. So write down these four things first and check them later.

• Are they already living that way? — have their actions already shifted toward that future?
• Did they say it publicly? — did they declare it somewhere that's hard to take back?
• Did they keep going in the face of opposition? — how long did they keep at it?
• Did it come from their own eyes? — did that idea come from direct experience, or did they borrow someone else's words or an old formula?

Chapter 9: How Groups Move

The principle that holds for one person holds just the same for a class, a school, a company, or a country. But groups have five extra shapes.

Steering wheels are stacked in layers

The mood of a class is others' eyes for each single student. But the mood of a class comes, in the end, from the students' thinking gathered together. Upward, it's material; downward, it's weight. The same goes for a company and its employees, a country and its citizens, a body and its cells.

So a group whose members all just pass on "that's how it's always been" may seem to be deciding for itself, but it's actually being dragged along by the mood outside. For a group to really have its own direction, there need to be people inside it who saw with their own eyes.

It's not good or bad; it's a difference in how the weight is placed. And groups are slower than their members. One person can move the moment they make up their mind, but a group needs time for thinking to come together.

"Everyone" always means "everyone around me"

The others' eyes we feel aren't the eyes of the whole world but of the people around me. That's why, even within the same country, what's taken for granted differs from group to group.

The threshold at which each person's mind changes is different, too. Some people change easily, some only change once quite a lot of others have, and some barely change at all. If thresholds are lined up in a chain, then when one person changes, the whole group changes one after another; if the chain is broken in the middle, it stops there. That's why, with the same counterexample, some groups change entirely and others stay as they are.

Deep beliefs change only when you see it from several people. News spreads even if just one person passes it along, but a deeply rooted view changes only when you see counterexamples separately from several different friends.

There are places that choose what gets seen

Algorithms, the news, search, textbooks, and parents who decide what their child gets to see — there are places that don't speak up themselves but decide what is seen by whom. In this piece, we call them chokepoints.

A chokepoint is the heaviest and least visible kind of others' eyes. We feel that "the world is like this," but really it's "the world that was shown to me is like this." A chokepoint does four things. It chooses what to show, sorts who to show it to, repeats how often to show it, and uses numbers like like-counts and rankings to show "this is what everyone thinks." So noticing that the world I see has been chosen, and keeping several windows open, is the first step for our times.

When everyone has changed inside, but the world stays the same

In Chapter 6, we said the inner threshold and the outer threshold are different. That's why this happens: lots of people have already changed inside, but since nobody moves on the outside, each person thinks they're the only one who changed. Hidden agreement hides hidden agreement.

This gets resolved in one of three ways: someone with little to lose moves first, hidden thinking shows up as numbers, like an anonymous vote or pre-order counts, or a movie or song gives it a name everyone can relate to. That's why, on the outside, it always collapses "suddenly."

Rules change late. School rules and laws are the set thinking of people from long ago, so they stick around for a long time even when nobody truly believes in them anymore. When that gap grows, one of four things happens. The rules get fixed (reform), a new path is made outside the rules (bypass), the rules fall apart (collapse), or, on the contrary, the rules get tightened even harder (tightening).

New things are born at the border

We call someone who lives across two countries, two clubs, or two generations a person on the border. This person receives what both sides take for granted, but because the two clash with each other, they're actually pulled less by either side. They see every day that what's taken for granted on one side isn't on the other. So the border is a place where your own eyes form easily, and it's where new ideas are born. On the other hand, they're an "outsider" to both sides, so it can be lonely, and it can be hard to show what they really think.

The one who connects two divided groups is also the person on the border. Words from an outsider don't get through well, since they're "the other side's talk," but a different way of being shown by "one of us" does get through.

Not just people. Where forest meets grassland, creatures from both sides live together, so many different kinds of life gather there. The same goes for estuaries, where river water meets seawater. Bacteria change their behavior all at once as a group when the signals around them pass a certain level.

Chapter 10: Why the World Is Moving Like This Right Now

Why "you have to work to live, even if you hate it" is wavering

For a long time, humanity's biggest taken-for-granted was, "Everything important is scarce, so to survive you have to work, even if you hate it." But there are three kinds of "scarce."

Now that things that don't shrink when shared — like information, digital goods, and AI — are becoming the center of the world, the third kind of scarcity is losing its support in those areas. Counterexamples like making things on your own, earning while playing, and working without an office are pouring out, and they're instantly visible to billions of people on screens. At the same time, the things that leaned on that taken-for-granted (jobs, certifications, hierarchies, the standards for marriage, a country's story) are wavering along with it, so the movement to grip tighter is growing too. That's why, right now, a sense of liberation and anxiety are both growing at the same time.

Where the pressure to survive weakens, the steering wheel shifts toward my own eyes, and what moves people becomes fun. The line between work and play is blurring because the hidden content of "work" was originally "survival." And what has newly become scarce isn't things but people's attention. The competition for attention, the wish everyone has to be famous, the temptation to inflate numbers — they all come from here.

Why has change gotten so fast?

The three costs of going around the loop from Chapter 7 have all gotten cheaper at once.

That's why the lifespan of the taken-for-granted has gotten shorter.

The two faces of social media. The same social media spreads counterexamples far and wide, and also copies the same words endlessly so people firm each other up even more. So right now is an age when the taken-for-granted loosens fast, and at the same time an age when like-minded groups set fast among themselves.

Division (polarization). This is a state where two groups saw different counterexamples, changed in different directions, and then quickly set by passing the same words around inside each group. As we saw in Chapter 9, this loosens when there are more people on the border, spanning both sides.

The two faces of AI. AI is the tool that has lowered the cost of making counterexamples the most, and at the same time it's the biggest chokepoint choosing what to show. If it shows many viewpoints and leaves the judgment to me, it increases the number of people who see; if it gives everyone the same answer, it increases the number of people who pass it on.

What do movies like "The Matrix" do?

Movies, novels, and games are ways of showing something that isn't real yet, first, on the screen in our minds. They can't change the real world directly, but they do four things.

1. They make the taken-for-granted look like a "belief." When huge numbers of people see "this world might be something made" all at once, a taken-for-granted that was invisible starts to look like one belief among others.
2. They let you practice being shaken, safely. Inside a movie theater, reality can crumble and you won't get hurt. Someone who has practiced once is less scared when they meet a real counterexample.
3. They give a name to people who felt the same way. When a phrase like "the red pill" appears, people who couldn't say it out loud recognize each other.
4. They make a future that doesn't exist yet visible. A future you've seen, not just heard about, is one that someone who saw it will later actually build.

So movies and stories are the advance party of counterexamples. If they shake up the board in our minds first, then when a real counterexample comes along, the world changes with far fewer of them.

There are things to watch out for, too. When a movie gets too famous, its symbols can become a new right answer. The phrase "the red pill," too, later got picked up by various groups as a badge for their own beliefs, and it sometimes became the name of a new right answer. Used to bind people together, it becomes propaganda; watched without leaving anything behind, it becomes escapism. A good story stops at "you could also see it this way," and leaves the judgment to the person watching.

Not just people. Dreams are movies the body plays for itself. Young animals' play-fighting is a game that safely practices real fighting. A car company's concept car is also a "work" that shakes up the industry's taken-for-granted first.

Chapter 11: Seeing It in Examples

Elon Musk — From Start to Finish

Theranos — Dressed-Up Results Collapse

This was a company that claimed it could run countless tests with just a few drops of blood. It dressed up its results when it showed them. Its board and investors were famous people, but almost none of them had seen the lab directly; they just passed on each other's words. The number of different eyes was almost zero, so it wasn't solid. That's why it collapsed quickly with just a few employees who had actually seen it and one reporter.

GM EV1 — A Counterexample with a Blocked Path

Electric cars already existed in the 1990s, and the people who drove them liked them. But they were only leased in some areas, so there was no path for people to actually buy one, and as the company took the cars back and got rid of them, the counterexample itself disappeared from view. So the path for hidden agreement to come out was blocked, and the world didn't change. Later, a documentary gave this story a name. The same counterexample can change the world or fail to, depending on paths and chokepoints.

In Everyday Life

• The first friend in class to choose a different path. When everyone is heading for the same future and one friend takes a different path and it works out, that friend becomes a counterexample for the whole class. Then friends who were secretly thinking the same thing follow, one by one.
• Trends. The first person to wear something chose it with their own eyes; when everyone wears it later, that's a change of gaze only. That's why trends come fast and go fast.
• Club mood. If one senior member keeps saying, "This is how we've always done it," that becomes the taken-for-granted; but if that senior shows "you all can do it differently," the juniors find their own way.

A caution. All of these examples were read with the results already known. Once you know the result, it's easy to make things fit after the fact. Whether this principle really holds has to be checked with predictions written down before the results are in. That's Chapter 12.

Chapter 12: Predictions to Check

A good theory should say in advance, "This is what will happen," and be able to admit it was wrong if it was wrong. If this principle is right, the following should be observed. If the opposite shows up, then that part of the principle is wrong.

Showing

1. Even on the same topic, the side that shows actual results or things you can try gathers more people for longer than the side that only argues with words.
2. The more influential the person showing, the more people take it as the right answer, and that share goes down when they also show "you can do it differently."

The taken-for-granted and change

3. The more a view was believed just as heard from others, the faster it changes with few counterexamples; the more a view was set through direct experience, the longer it holds out.
4. Old standards melt first in fields where you can try things yourself (content, apps).
5. Fields where real scarcity remains (housing, medical care, care work) change less easily, and the reaction of gripping tighter is stronger.
6. The later someone followed a new trend, the more easily they move on to the next trend. People who came early after seeing it directly weigh things up for themselves next time too.

Groups

7. The bigger the gap between anonymous survey results and actual public behavior in a field, the more "suddenly" change comes.
8. In fields where a path — "do it this way" — has appeared, behavior changes sooner than in fields where only "that's wrong" has piled up.
9. The more people there are who span both groups on a topic, the less division sets.
10. The bigger social media grows, the more both the spread of counterexamples and the setting of like-minded groups grow together.

Times and stories

11. Before a field changes in a big way, movies or stories that shake up that field's taken-for-granted — and phrases that come from those stories — spread first.

The past self

12. The more a person or company succeeded big in one field, the later they respond to the next change. Those who keep a foot in other fields or listen to diverse voices are less late.

The rule for checking. Only things written down before the results were known can be counted as correct. If two or more in the same group keep being wrong, the chapter that group relies on has to be rewritten.

Chapter 13: Things to Watch Out For

This principle is also a form of "showing." So if it gets too heavy, it could turn into "this is the right answer." Here are the promises that guard against that.

Easy traps to fall into.

Lines we must keep.

1. What's truly hard is truly hard. The body, money, the law, the laws of physics aren't things you can beat just by making up your mind. They're conditions you have to read, and find other routes around.
2. Showing doesn't move others. You can show, but the one who chooses is the person who sees. If they choose differently, it's not a failure — it's that different weights are on them. Trying to decide someone else's choice for them is overriding.
3. Failure isn't the fault of your mindset. When something doesn't work out, it's not about that person's worth but about layers, groups, and paths. You must never say an illness, an accident, or harm happened to someone because they "didn't believe properly."
4. We don't call being shaken good, no matter what. The taken-for-granted loosening means weight is shifting, not that things are necessarily getting better. We don't look down on people who grip their old beliefs tight.
5. Movies don't replace judgment about reality. For important things like health, law, money, and safety, follow accurate, up-to-date information and the judgment of experts.
6. This piece is just one point of view, too. Read it as one standard among many, and if contrary results come in, fix it.

Glossary

This piece in one sentence. We show ourselves to each other and watch each other, and at every moment we decide anew whose eyes will hold my steering wheel.