Insights from The Art of Thinking Clearly by Rolf Dobelli
Narito ang isang condensed cognitive bias checklist na maaari mong konsultahin bago gumawa ng isang personal, professional, or financial commitment, at maiwasan ang pag-aaksaya ng iyong oras at pinaghirapang pera.
Extrapolation error (o kilala din sa: Cluttering illusion)
Gustong-gusto ng ating utak na makahanap ng kahulugan sa mga short‐term trends and rush to conclusions (maaaring lumipat tayo sa isang lungsod na may mahabang taglamig after spending just five days in that city in the middle of summer o bumili ng Php100,000 treadmill after using a treadmill at the gym a handful of times). We irrationally make big decisions based upon small data sets ‐ lalo na kung sinusuportahan ng maliit na data set ang isang bagay na gusto nating gawin.
Confirmation bias
“What a human being is best at doing is interpreting all new information so that their prior conclusions remain intact.”
‐ Warren Buffett
Kung may gusto kang gawin, halos palaging makakahanap ka ng sapat na ebidensya para suportahan ang paggawa nito. If you’re looking for a new house and have a good feeling the instant you walk into an open house, you will expand the list of pros for the home, and the cons (like a long commute to work or a noisy road behind the house) will suddenly matter less.
Special case syndrome
Business leaders go forward with costly projects, despite knowing similar projects have failed because they insist the next project is “special” and an “exception.”
Investors routinely buy at peak euphoria and sell when everyone else is panicking because they insist that what is happening is a special case unlike any time in financial history. As Sir John Templeton famously said, “The four most expensive words in the English language are, ‘This time it’s different.'”
Not‐invented‐here syndrome
Kapag mayroon tayong idea for a new business or family vacation, nararamdaman natin na it is far more brilliant than it is, and we are far more likely to commit to the idea than if it came from someone else.
“We are drunk on our own ideas. To sober up, take a step back every now and then and examine their quality in hindsight. Which of your ideas from the past ten years were truly outstanding? Exactly.”
Dobelli says,
Survivorship bias
Kapag sinusubukang tularan ang tagumpay ng ibang tao, remember behind every successful person is a graveyard of unsuccessful people who are silent. When you drive around town, you see hundreds of stores open and don’t see all the businesses that failed. If you drove through town one day and saw half of the stores abandoned (representing the average failure rate after 5 years), you might think twice before quitting your job and investing your life savings in a brick‐and‐mortar business.
Selection factor neglect
Unless you’re around 6’2” tall, have a long torso, big feet, and your arm length to height ratio is higher than most people, dedicating your life to becoming an Olympic freestyle swimmer will be a very frustrating endeavor. You can put in more work than someone with a “swimmer’s body,” but you may never defeat them in a race.
Gusto nating maniwala na we can succeed with hard work alone, so we look past prerequisite traits (i.e., selection factors) of top performers in select fields. Matututuhan natin ang karamihan sa mga bagay at maging mahusay sa maraming larangan, but we must be careful not to emulate someone who possesses a set of extremely unique traits.
Outcome bias
Ang tanging bagay na mas masahol than emulating an extreme outlier is emulating someone who got extremely lucky. A famous hedge fund manager can make a string of dumb decisions and get rich. But years later that same investor will make similar decisions and lose everything. Luck plays a bigger part in success than we like to admit.
Groupthink
Nawawala ang ating pagdududa when we see a room full of people arrive at the same conclusion, but the consensus we see is likely an illusion. If the room had just one attractive and confident person in a position of authority who told a great story, they may have persuaded the group to take their side. However, if the group had not been subject to the persuasive leader and anonymously wrote down their conclusions on a piece of paper, there may not have been a consensus. Never underestimate the power of a persuasive person to get a group of people to make irrational decisions.
ACTIONABLE ADVICE:
- Rely on large sample size and long trial periods.
- Research average success rates (base rates) and seek out people who have tried and failed to understand why they failed.
- Pre‐determine a stopping point and write‐up an exit plan in the event your forecast is wrong.
Author: The Pinoy Engineer
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