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posted by Fnord666 on Sunday May 03 2020, @11:09AM   Printer-friendly
from the taking-the-time-to-understand-why dept.

Chesterton's Fence: A Lesson in Second Order Thinking:

A core component of making great decisions is understanding the rationale behind previous decisions. If we don't understand how we got "here," we run the risk of making things much worse.

When we seek to intervene in any system created by someone, it's not enough to view their decisions and choices simply as the consequences of first-order thinking because we can inadvertently create serious problems. Before changing anything, we should wonder whether they were using second-order thinking. Their reasons for making certain choices might be more complex than they seem at first. It's best to assume they knew things we don't or had experience we can't fathom, so we don't go for quick fixes and end up making things worse.

Second-order thinking is the practice of not just considering the consequences of our decisions but also the consequences of those consequences. Everyone can manage first-order thinking, which is just considering the immediate anticipated result of an action. It's simple and quick, usually requiring little effort. By comparison, second-order thinking is more complex and time-consuming. The fact that it is difficult and unusual is what makes the ability to do it such a powerful advantage.

Second-order thinking will get you extraordinary results, and so will learning to recognize when other people are using second-order thinking. To understand exactly why this is the case, let's consider Chesterton's Fence, described by G. K. Chesterton himself as follows:

There exists in such a case a certain institution or law; let us say, for the sake of simplicity, a fence or gate erected across a road. The more modern type of reformer goes gaily up to it and says, "I don't see the use of this; let us clear it away." To which the more intelligent type of reformer will do well to answer: "If you don't see the use of it, I certainly won't let you clear it away. Go away and think. Then, when you can come back and tell me that you do see the use of it, I may allow you to destroy it."

Chesterton's Fence is a heuristic inspired by a quote from the writer and polymath G. K. Chesterton's 1929 book, The Thing. It's best known as being one of John F. Kennedy's favored sayings, as well as a principle Wikipedia encourages its editors to follow. In the book, Chesterton describes the classic case of the reformer who notices something, such as a fence, and fails to see the reason for its existence. However, before they decide to remove it, they must figure out why it exists in the first place. If they do not do this, they are likely to do more harm than good with its removal. In its most concise version, Chesterton's Fence states the following:

Do not remove a fence until you know why it was put up in the first place.

Chesterton went on to explain why this principle holds true, writing that fences don't grow out of the ground, nor do people build them in their sleep or during a fit of madness. He explained that fences are built by people who carefully planned them out and "had some reason for thinking [the fence] would be a good thing for somebody." Until we establish that reason, we have no business taking an ax to it. The reason might not be a good or relevant one; we just need to be aware of what the reason is. Otherwise, we may end up with unintended consequences: second- and third-order effects we don't want, spreading like ripples on a pond and causing damage for years.

[...] Chesterton's Fence is not an admonishment of anyone who tries to make improvements; it is a call to be aware of second-order thinking before intervening. It reminds us that we don't always know better than those who made decisions before us, and we can't see all the nuances to a situation until we're intimate with it. Unless we know why someone made a decision, we can't safely change it or conclude that they were wrong.

The first step before modifying an aspect of a system is to understand it. Observe it in full. Note how it interconnects with other aspects, including ones that might not be linked to you personally. Learn how it works, and then propose your change.


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  • (Score: 1, Disagree) by khallow on Sunday May 03 2020, @01:42PM (8 children)

    by khallow (3766) Subscriber Badge on Sunday May 03 2020, @01:42PM (#989784) Journal

    Chess and Go are many orders of magnitude simpler,

    No, that's blatantly false. Consider the classic example of driving from point A to point B. The system is more complicated than a chess board. But there's little effort required to plot the trip - perhaps avoiding some points of congestion or other complexities of the urban environment. But there's no adversary and slight mistakes don't cost you the entire trip. It'll just take you a little longer to get there.

    Such games are actually much harder and far less forgiving than most real life problems.

    and therefore much more deterministic than any real-world endeavors.

    Simplicity is not a measure of determinacy. There are very simple indeterminate physical systems such as the two slit experiment (when one attempts to measure which slit an elementary particle passed through) and very complex deterministic systems (such as Go).

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  • (Score: 4, Insightful) by Booga1 on Sunday May 03 2020, @02:21PM (5 children)

    by Booga1 (6333) on Sunday May 03 2020, @02:21PM (#989797)

    Many problems have solutions that are simple, easy, and wrong.

    You're comparing games to maps. Try to compare the games to ecological systems with delicate balances that developed over geological time scales.
    Australia is a great example where exactly this sort of second order thinking did not happen before people just started trying those simple solutions to see what happened. What happened there was an absolute disaster when they released cats to try to control rat and mice populations. Now the Australian government is planning on killing millions of cats.

    In bid to save native animals, the Australian government has pledged to kill two million feral cats... [theguardian.com]
    Feral cats cover 99.8% of Australia [theguardian.com] at a density of one cat for every four square kilometres...

    • (Score: 2, Troll) by khallow on Sunday May 03 2020, @02:29PM (4 children)

      by khallow (3766) Subscriber Badge on Sunday May 03 2020, @02:29PM (#989802) Journal

      You're comparing games to maps.

      No, I'm comparing a complex game to a real world endeavor.

      Try to compare the games to ecological systems with delicate balances that developed over geological time scales.

      Sure, the system is more complicated, but as we see the decision-making is not.

      Australia is a great example where exactly this sort of second order thinking did not happen before people just started trying those simple solutions to see what happened. What happened there was an absolute disaster when they released cats to try to control rat and mice populations. Now the Australian government is planning on killing millions of cats.

      Notice the complete absence of problems harder than a chess game. The logistics of killing millions of cats is complex. But it's not hard to choose. There's only a few choices here on what to do or not do about cats in Australia. Each has trade offs based on current knowledge. Pick the one that has the best cost-benefit as you determine it with options to change your mind as you learn more about the system.

      • (Score: 3, Insightful) by Booga1 on Sunday May 03 2020, @06:11PM (3 children)

        by Booga1 (6333) on Sunday May 03 2020, @06:11PM (#989856)

        Not sure why someone modded you troll. I wish people would use "disagree" instead unless there's something substantial wrong with a post.

        Personally, I feel that one must try to consider the whole picture to come to a decision, which is what the article was all about. What I find interesting is that you seem to agree with that. yet also seem to think that it's easier than a game of chess. From my perspective, I feel the problems with the cats are considerably more difficult than chess because of the vast array of choices, trade offs, costs, and other factors that aren't even controllable before or after you start exercising those choices. At least in chess your pieces don't move unless you move them and your opponent isn't allowed to move until you've had your turn(even if you play by the clock).

        • (Score: 1) by khallow on Monday May 04 2020, @01:06AM

          by khallow (3766) Subscriber Badge on Monday May 04 2020, @01:06AM (#990000) Journal

          because of the vast array of choices, trade offs, costs, and other factors that aren't even controllable before or after you start exercising those choices.

          Which let us note, is vast only in comparison to the information content of a chess board. The model of predator-prey dynamics isn't that complicated even with multiple species. With chess every move you try to look ahead increases the cost crudely by an exponential amount and you have an adversary trying to make you fail.

        • (Score: 3, Informative) by The Vocal Minority on Monday May 04 2020, @06:17AM (1 child)

          by The Vocal Minority (2765) on Monday May 04 2020, @06:17AM (#990083) Journal

          Not sure why someone modded you troll.

          The idiot mods seem to have been rather busy today. As obviously wrong as the op was, it certainly wasn't a troll post.

          • (Score: 0) by Anonymous Coward on Monday May 04 2020, @08:44PM

            by Anonymous Coward on Monday May 04 2020, @08:44PM (#990419)

            I was not a modder, but khallow repeats the same lies and ignores cited reality all the time. At a certain point it becomes clear he doesn't give two shits about anything except keeping the rich in power. He is a corporate shill, whether he is paid to do so or just personally motivated.

  • (Score: 5, Insightful) by JoeMerchant on Sunday May 03 2020, @04:07PM (1 child)

    by JoeMerchant (3937) on Sunday May 03 2020, @04:07PM (#989824)

    No, that's blatantly false.

    Well, I'm glad I understand your reality a little better now.

    Both Chess and Go have a discrete number of pieces and legal playing positions. From any given board position there are mathematically/logically limited future positions. Although the number of positions and outcomes is difficult for most people to predict, they are many many orders of magnitude fewer than the simple question of: when I get out of bed this morning will I die before I leave the house? You think you know the answer to that question, but there are trillions of trillions of variables, mostly unknown to everyone on the planet, even more unknown to you personally. We think we comprehend the question in terms of statistics, but those statistics are hopelessly flawed in the face of all the unknowns. What we have is an approximation based as much on faith as anything else that the answer is: usually, yes.

    If you think you, or anyone, can have the answers to any real world questions in the way that a Go or Chess master can, you are living a delusion. We operate in a world of best guesses. Key point: predictions of outcomes are influenced more by what people wish the reality were than what it actually is or will be.

    If you are equating Chess and Go to winner-take-all life and death games, that's a gross misinterpretation of their importance and value. They are entertainment, diversion, mostly a waste of time with less value than your driving trip from point A to point B. Whether you win or lose your online game of 9x9 Go with Chung-Ho is of less value and consequence than whether or not Billy Bob cuts you off in traffic delaying your arrival at the store by 90 seconds. The game of Go may seem harder and more adversarial than driving to you, and it should - that's the design of both systems: games for entertainment to be challenging and adversarial, daily tasks to be simple and cooperative, even though both are imperfect at achieving their design goals.

    When your elected representatives determine policy, or you and your neighbor decide whether or not to remove a fence, the deciding factors are generally selfish, short sighted, and poorly if at all thought out beyond the immediate consequences. People attempting to influence the debate for the outcome of a decision similarly have mostly selfish, short sighted, and often poorly thought out motivations driving their more carefully structured arguments designed to influence the outcome. Any attempt to model these systems for multiple steps forward into the future is futile as the arguments so derived are lost on the ears of those who might be influenced - appeals to emotional response are far more effective at eliciting actual change.

    --
    🌻🌻 [google.com]
    • (Score: 1) by khallow on Monday May 04 2020, @03:02AM

      by khallow (3766) Subscriber Badge on Monday May 04 2020, @03:02AM (#990029) Journal

      Although the number of positions and outcomes is difficult for most people to predict, they are many many orders of magnitude fewer than the simple question of: when I get out of bed this morning will I die before I leave the house?

      You have the order of magnitude switched. The simple question has a simple answer - actuaries do this sort of calculation all the time without having to consider more than a few variables.

      You think you know the answer to that question, but there are trillions of trillions of variables, mostly unknown to everyone on the planet

      And completely irrelevant to the question. We can make similar spurious claims about the minds of the parties playing Chess and Go.

      If you are equating Chess and Go to winner-take-all life and death games, that's a gross misinterpretation of their importance and value.

      Which again is irrelevant, even if it were happening. We could also claim the same of your use of the phrase "life and death games" with the same degree of relevancy.

      When your elected representatives determine policy, or you and your neighbor decide whether or not to remove a fence, the deciding factors are generally selfish, short sighted, and poorly if at all thought out beyond the immediate consequences. People attempting to influence the debate for the outcome of a decision similarly have mostly selfish, short sighted, and often poorly thought out motivations driving their more carefully structured arguments designed to influence the outcome. Any attempt to model these systems for multiple steps forward into the future is futile as the arguments so derived are lost on the ears of those who might be influenced - appeals to emotional response are far more effective at eliciting actual change.

      A third irrelevant remark. This story wouldn't exist in the first place, if it weren't for the way-too-common flawed approaches that are traditionally employed. Of course, someone is doing it wrong.