Archives for April 2017

Latticework of Mental Models: Physics Envy

A group of tourists was visiting a dinosaur museum. A guide was entertaining them with interesting trivia about various dinosaur species. Just when they were passing by a huge skeleton of an ancient carnivore, an inquisitive member of the tourist group asked the guide, “How old is this skeleton?”

“Oh, that big T-rex skeleton? It’s about 100 million and 5 years old.” quipped the guide.

“That’s quite an odd figure. I understand the 100 million part but how are you so sure about the last 5 years?”

With all earnestness, the guide replied, “Well, that’s the most accurate part of the figure because exactly 5 years ago a world famous expert on dinosaurs told me that the skeleton is 100 million years old.”

The guide was honest in his attempt to provide an accurate information but he confused accuracy with precision. His answer was precise but was it really accurate? In fact, a better question to ask would be – did the guide make expert’s answer anymore useful by making it more precise? I think no.

Sir John Maynard Keynes said, “Better roughly right than precisely wrong.”

How to Analyze a Business, the Sherlock Holmes Way

Peter Bevelin has written a few amazing books, like Seeking Wisdom: From Darwin to Munger, A Few Lessons for Investors and Managers, and the latest All I Want To Know Is Where I’m Going To Die So I’ll Never Go There.

But one of his lesser-known books that I have on my all time favourites lists is A Few Lessons from Sherlock Holmes. Through this book, Bevelin has distilled Arthur Conan Doyle’s Sherlock Holmes into bite-sized principles and key quotes. In fact, this book is much more than a collection of quotes. It is a way to learn the powers of observation, understand the limits of our mind, and counter the narrative fallacy.

Bevelin writes in the book…

What distinguishes Holmes from most mortals is that he knows where to look and what questions to ask. He pays attention to the important things and he knows where to find them.

Oh, My Impatient Generation!

Impatience I met a guy yesterday who spent the past ten years of his life – and he’s just 32 years of age – destroying his body with alcohol, excessive food, and a sedentary lifestyle.

“I have resolved to be fit, lean and healthy in the next six months,” he told me with great confidence.

Well, not surprisingly, he got irritated when I told him that it might take a little longer than six months to achieve what he wanted.

His reaction wasn’t much different from a cousin of mine, who recently told me how she wanted to become a life coach and was ready to do whatever it took to get there in one year.

When I asked her, “What if it takes you ten years to get there, instead of one?” she had no answer.

Clearly, she hadn’t considered the possibility that years of learning, experience and skill development could be one of the necessary success ingredients in becoming a good life guru. But she wanted the results without all this work…or by investing the necessary time.

Why I Don’t Invest in Banking Stocks

In October 2016, I had written a post about how I let an opportunity to buy HDFC Bank in the middle of 2006 pass by, and why I have never come to regret that decision (the stock has turned into a 10-bagger since then!).

My reasons to miss that stock was my inability to understand the complexities of the banking and finance business, and more importantly that I have never trusted banks to uphold high levels of honesty and integrity in their business operations.

I received a lot of brickbats for that post for castigating an entire sector (and the bank) that has created so much wealth for shareholders in the past, and that constitutes such a big part of India’s stock market capitalization.

Well, I stand by my thoughts which, by the way, are my personal thoughts and are not binding on you to also avoid stocks from the banking and financial services space.

Investing is a personal affair, and what makes me uncomfortable can be comfortable for you, and vice versa.

Anyways, now the question is – Why am I writing a second post on my unwillingness to invest in banking stocks?

The Ultimate Game of Economics

Have you heard about the ‘ultimate game of economics’? Here’s how it goes.

A person – let’s call him proposer – is given a hundred bucks and asked to split the money with a stranger, called responder. The split doesn’t need to be equal. Proposer could split it 50-50 or he could even keep 90 for himself and offer 10 to the stranger. But the condition is that if the responder rejects the offer, none of them get any money.

If you were the responder, at what split ratio would you accept the offer?

50-50? Most people would consider that fair. But is it rational?

What if you didn’t know about the total sum involved in the deal and you’re told only about the amount that proposer offers you? Isn’t it like a free money, something that you found lying on the street. Why would you reject even 5 bucks that way?

But that’s not how humans think. Right?

The knowledge that someone else got a better deal (at our cost) makes us humans feel cheated.

“Not fair,” we cry. “How dare the proposer offer less than 50 to me?” [Read more…] about The Ultimate Game of Economics

Bull Market and Bad Habit of Being Right

Picture this: It is 2019, and you are watching the cricket World Cup finals. India is playing Pakistan. It’s the start of the 42nd over of India’s run chase. Yuvraj Singh has just hit Pakistan’s lead spinner for five sixes in the first five balls of the over.

Yuvraj is on a hot streak. He had hit the same spinner for six sixes in a row in a match on the same ground last year. So, he is going to hit the next one out of the park as well, right?

Keeping aside the patriotism that is much seen in an India-Pakistan match, you, like most Indian cricket fans would unhesitatingly reply, “Yes!”

Well, that assumption doesn’t say as much about Yuvraj’s skills as it does about how our brains work. In fact, it tells a lot about how we humans have evolved.

Anyways, coming back to your assumption (conclusion) that Yuvraj will deliver even the last ball for a six is, well, way off the mark. Statistically, Yuvraj isn’t significantly more likely to hit a six on this last ball than he is to get caught at the boundary, whatever hot streak he may be going through.