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Science

People Think They Already Know Everything They Need To Make Decisions 54

New research challenges assumptions about decision-making, revealing people tend to believe they have sufficient information regardless of actual data at hand. A study by Gehlbach, Robinson, and Fletcher, published earlier this month, found participants consistently overestimated their knowledge when given partial information on a hypothetical school merger scenario.

Nearly 90% favored merger when presented pro-merger facts, while only 25% did when given opposing data. However, opinions shifted when full information was provided, suggesting malleability of views despite initial overconfidence. Researchers caution this bias could be exploited in today's fractured media landscape, where partial or misleading information often circulates unchecked.

People Think They Already Know Everything They Need To Make Decisions

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  • TFS (Score:5, Insightful)

    by garyisabusyguy ( 732330 ) on Wednesday October 16, 2024 @02:07PM (#64869557)

    People who think they are not stupid, are stupid

    People who think they are stupid take steps to ensure they do not do stupid things

    Lessons learned, assume that you are stupid and take steps to reduce the impact

    • Basically like every idiot here who thinks they can run Tesla and SpaceX better than Elon.

      • Basically like every idiot here who thinks they can run Tesla and SpaceX better than Elon.

        You left out Twitter -- uh, I mean X. How is that one working out?

    • This isn't a C vs Rust thread.
  • Just look at how many people think that LLMs are going to reach the next level and make decisions for them, regardless of actual data at hand.

    • by dfghjk ( 711126 )

      Note that LLMs make decisions regardless of actual data at hand.

      • I admire the confidence and LLM has. It has the sort of self assuredness that sends people up the corporate ladder. They will go far in management.

    • Just look at how many people think that LLMs are going to reach the next level and make decisions for them, regardless of actual data at hand.

      I'm going to test your theory by asking ChatGPT what I should have for lunch. It suggested a hamburger. Thing is, I'm actually craving chicken. So, while it can make decisions, it still can't read minds.

  • Well, of course. (Score:4, Interesting)

    by Petersko ( 564140 ) on Wednesday October 16, 2024 @02:09PM (#64869563)

    If you're a free will denying nut job, like I am, you think that the guy sitting on the couch in the theatre of the mind is merely "informed" of the result, and the great machine that retroactively justifies everything can be heard underneath the floorboards, constantly cranking away, building the illusion of logical solidity around the vapor that is emotional reaction.

    • You do not need to deny the existence of free will. It does not exist, regardless what you think.
      • I have no choice but to deny it. That's the point, :D

      • might as well use my free will to point out that your using your free will to argue this ;P
      • Although there are religious derivatives that side with your thinking, free will does exist. In any given moment, there are certainly trajectories based on past experience, the likely outcomes.

        And people prove them wrong all of the time, and the universe is on their side on a macro scale. It's all physics, ultimately. Some can marginally predict outcomes using physics but much is unknown in physics, dimensions, and what interactions among the manifestation of inter-dimensional dynamics can be even understoo

  • The study sets up a fictional scenario about which people have no previous or outside information and no personal interest. All of which is more or less necessary for a study, but which makes its relevance to thorny real-world issues like politics dubious at best.
    • Are you assuming the people receive political information from factual sources?

    • All of which is more or less necessary for a study, but which makes its relevance to thorny real-world issues like politics dubious at best.

      Some people just love to labor under the delusion that political views are malleable if people are presented with the right sort of information. Maybe in other countries they are, but here in the USA we're doing that sports team fanaticism thing hardcore. Facts just don't matter anymore. My team is better, your team sucks, be sure to support my favorite team on election day!

      • Make sure to donate to your sports team so they can demolish the stadium
      • All of which is more or less necessary for a study, but which makes its relevance to thorny real-world issues like politics dubious at best.

        Some people just love to labor under the delusion that political views are malleable if people are presented with the right sort of information. Maybe in other countries they are, but here in the USA we're doing that sports team fanaticism thing hardcore. Facts just don't matter anymore. My team is better, your team sucks, be sure to support my favorite team on election day!

        And yet you only see one team saying things like "everyone on the other team should be hung"

    • I suspect there's a bias towards action instilled in us from 20,000 years of running from leopards compelling us that an immediate decision better than standing still and having a long think on things. It's not great, but one piece of data that's rarely in evidence: how long can you deliberate before the leopard eats you. That's more of an art than a science IMO.

      • by PPH ( 736903 )

        20,000 years of running from leopards

        I hear the growl in the tall grass. I didn't need any more information.

        I suspect that the PP was modded Troll by those employed in the persuasion business. "You think you are ready to make a decision. But allow me a few minutes of your time to present you with additional facts."

        "No. You sound like a leopard. That's all I need to know."

  • marginal futility (Score:4, Insightful)

    by Pseudonymous Powers ( 4097097 ) on Wednesday October 16, 2024 @02:11PM (#64869575)
    I have all the information I need to make yet another uninformed decision, thank you.
  • Just the title is enough to know everything!

  • The first rule of making a decision or writing requirements is, "You are wrong."

    Gather more information, gather information that goes against your bias, be less wrong.

    See also: bike shed syndrome.

  • I already knew.

  • Who says I strictly need to make correct or smart decisions. I am quite able to make decisions without the burder of being correct.

  • It's not so bad (Score:5, Insightful)

    by Baron_Yam ( 643147 ) on Wednesday October 16, 2024 @03:07PM (#64869775)

    You're never going to have perfect knowledge of a situation - making judgement calls based on incomplete information is a requirement of continued existence.

    The real skill comes in understanding your degree of ignorance and what risk that represents in a given situation. Which is tough, because that's likely one of your areas of ignorance.

    The secondary skill is understanding you may not be making the optimal choice, and remaining open to new information and changing course as a result of new understanding that information may bring.

  • But it's good that someone checked.

    • Some of the most interesting advances come when you do a study to confirm an "obvious" thing followed by "that's interesting."

      "They need a study for this?" assumes you already know everything.

    • by Tablizer ( 95088 )

      from Captain Obvious University.

  • "Humans are lazy"

  • by rsilvergun ( 571051 ) on Wednesday October 16, 2024 @04:28PM (#64870057)
    to make decisions. One of the things that really pisses me off about our economic system is that it assumes I have perfect information. Which I don't.

    Buddy of mine got a chance at a "promotion". Same pay, but he was told it would come with longer hours and he'd have to come in on his days off for meetings. He also got told that the company probably wouldn't hire for the position anyway, they'd just hire another line worker which would make my buddy's job easier.

    Naturally he turned it down.

    Well, turns out they did hire someone, who is a lazy boob making my buddies life harder. And there was no extra hours worked and quiet a bit more pay.

    Basically everything he was told is a lie.

    Nevermind that at any moment the owner of the companies we work for could be planning to screw us all over and we don't find out until the last minute.

    You *never* have enough information to make informed decisions because there's always someone holding back to get leverage over you. But like this article says, we act like we're in control.

    Trust the system. Trust the system. No need for change. No need for transparency. You're so amazing you can do it all on your own. Trust the system.

Duct tape is like the force. It has a light side, and a dark side, and it holds the universe together ... -- Carl Zwanzig

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