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Help! My car is allergic to vanilla ice cream; a study in problem solving. The complete case
A complaint was received by a high ranking executive of a well known major automobile manufacturer:

“This is the second time I have written you, and I don’t blame you for not answering me, because I kind of sounded crazy, but it is a fact that we have a tradition in our family of ice cream for dessert after dinner each night. But the kind of ice cream varies so every night, after we’ve eaten, the whole family votes on which kind of ice cream we should have and I drive down to the store to get it.

It’s also a fact that I recently purchased one of your new automobiles and since then my trips to the store have created a problem. You see, every time I buy vanilla ice cream, when I start back from the store my car won’t start. If I get any other kind of ice cream, the car starts just fine. I want you to know I’m serious about this question, no matter how silly it sounds: ‘What is there about this car that makes it not start when I get vanilla ice cream, and easy to start whenever I get any other kind?”

The president of this auto manufacturer was understandably skeptical about the letter, but sent an engineer to check it out anyway. The latter was surprised to be greeted by a successful, obviously well-educated man in a fine neighborhood. He had arranged to meet the man just after dinner time, so the two hopped into the car and drove to the ice cream store. It was vanilla ice cream that night and, sure enough, after they came back to the car, it wouldn’t start.

Now the engineer, being a logical man, refused to believe that this man’s car was allergic to vanilla ice cream. He arranged, therefore, to continue his visits for as long as it took to solve the problem. And toward this end he began to take notes: he jotted down all sorts of data, time of day, type of gas used, time to drive back and forth, etc.

In a short time, he had a clue: the man took less time to buy vanilla than any other flavor. Why? The answer was in the layout of the store.

Vanilla, being the most popular flavor, was in a separate case at the front of the store for quick pickup. All the other flavors were kept in the back of the store at a different counter where it took considerably longer to find the flavor and get checked out.

Now the question for the engineer was why the car wouldn’t start when it took less time. Once time became the problem – not the vanilla ice cream – the engineer quickly came up with the answer: v***r lock. It was happening every night, but the extra time taken to get the other flavors allowed the engine to cool down sufficiently to start. When the man got vanilla, the engine was still too hot for the v***r lock to dissipate.

Help! My car is allergic to vanilla ice cream; a study in problem solving. The complete case - Kepner-Tregoe Can vanilla ice cream be a clue to solving the mystery of how a car won't start? Learn problem solving skills through research and critical thinking.

https://www.gatesnotes.com/Books/Mindset-The-New-Psychology-of-Success
What You Believe Affects What You Achieve
By Bill Gates | December 7, 2015
Even as my glasses have gotten smaller and hopefully cooler over the years, I am still a proud member of Nerd Nation. As such, I read a lot of books—usually more than 50 a year. Many of the books I review on Gates Notes are recent releases, because I figure people are generally more interested in hearing about newer works. But I also like to revisit older books that feel especially important or relevant. Mindset: The New Psychology of Success (2006), by the Stanford psychologist Dr. Carol Dweck, is one of those books.
Mindset first came to my attention a few years ago in a fascinating invention session on education with my friend Nathan Myhrvold, similar to the sessions Malcolm Gladwell described in his article “In the Air: Who says big ideas are rare?” Dweck’s research had a big impact on our thinking that day. And in the years since, Dweck and her research have helped my foundation colleagues and me understand more about the attitudes and habits that allow some students to persevere in school despite big challenges.
Here is Dweck’s thesis: Our genes influence our intelligence and talents, but these qualities are not fixed at birth. If you mistakenly believe that your capabilities derive from DNA and destiny, rather than practice and perseverance, then you operate with what Dweck calls a “fixed mindset” rather than a “growth mindset.” Our parents and teachers exert a big influence on which mindset we adopt—and that mindset, in turn, has a profound impact on how we learn and which paths we take in life.
In experiment after experiment, Dweck has shown that the fixed mindset is a huge psychological roadblock—regardless of whether you feel you were blessed with talent or not. If you have the fixed mindset and believe you were blessed with raw talent, you tend to spend a lot of time trying to validate your “gift” rather than cultivating it. To protect your self-identity as someone who’s super smart or gifted, you often steer clear of tough challenges that might jeopardize that identity. Here’s how Dweck puts it: “From the point of view of the fixed mindset, effort is only for people with deficiencies…. If you’re considered a genius, a talent, or a natural—then you have a lot to lose. Effort can reduce you.”
If you have the fixed mindset and believe you lost the genetic lottery, you also have little incentive to work hard. Why bother putting in a lot of effort to learn a difficult concept if you’ve convinced yourself that you’re lousy at it and nothing is going to alter that basic equation? When I was visiting with community college students in Arizona, one young man said to me, “I’m one of the people who’s not good at math.” It kills me when I hear that kind of thing. I think about how different things might have been if he had been told consistently “you’re very capable of learning this stuff.”
In contrast, people with the growth mindset believe that basic qualities, including intelligence, can be strengthened like muscles. It’s not that they believe that anyone can become the next Albert Einstein or Michael Jordan if they just work hard enough on their physics homework or fadeaway jumpers. Instead, in Dweck’s words “they believe a person’s true potential is unknown (and unknowable); that it’s impossible to foresee what can be accomplished with years of passion, toil, and training.” As a result, they have every incentive to take on tough challenges and seek out opportunities to improve.
One of the reasons I loved Mindset is because it’s solutions-oriented. In the book’s final chapter, Dweck describes the workshop she and her colleagues have developed to shift students from a fixed to a growth mindset. These workshops demonstrate that “just learning about the growth mindset can cause a big shift in the way people think about themselves and their lives.”
My only criticism of the book is that Dweck slightly oversimplifies for her general audience. Contrary to the impression that Dweck creates here (but probably not in her academic papers), most of us are not purely fixed-mindset people or growth-mindset people. We’re both. When I was reading the book, I realized that I have approached some things with a growth mindset (like bridge) while other things in a fixed mindset (like basketball).
The greatest virtue of the book is that you can’t help but ask yourself things like, “Which areas have I always looked at through a fixed-mindset lens?” and “In what ways am I sending the wrong message to my children about mindset and effort?” Thanks to Dweck’s skillful coaching, you’re almost guaranteed to approach these tough questions with a growth mindset.

What You Believe Affects What You Achieve Bill Gates reviews the book “Mindset” by author Carol Dweck.