Category: Books

Books that we read and our thoughts about them.

Book Review: The Attention Merchants

In The Attention Merchants: The Epic Scramble to Get Inside Our Heads (Amazon,) author Tim Wu walks us through how the advertising industry evolved from its patent medicine roots to the current mess of privacy invading ad exchanges.

Advertising is primarily about gaining a person’s attention. The medium through which this is done has evolved from posters and billboards to newspapers and magazines to tv and internet. The media is the aggregator of attention – their principle goal is to draw people in and then sell their attention to the highest bidder. But how do you measure attention? How do you know if someone watched your ad? Or, for that matter, should watch your ad? What are the boundaries of one’s privacy?

What struck me was that as the stakes kept getting higher, so did the degree of invasion into our head-space. We are now at a point where the vast majority of websites you visit are sending your data to third-party sources, usually without your permission or knowledge.

For every two eyes looking at a screen there are probably ten or more looking back at them.

And it is no longer just your “digital” footprint.

Did you know that there are now billboards that can track you by your phone’s wifi?

All WiFi-capable devices broadcast a unique ID – a Media Access Control (MAC) address – when they’re looking for networks (and so long as WiFi is enabled, they’re always looking for networks). So if you walk around carrying a mobile phone with WiFi turned on, you’re broadcasting your own, unique radio beacon, and it’s easy to track your movements.

Scary stuff.

Recommendation: Worth a read.

Book Review: Mistakes Were Made (But Not by Me)

Mistakes Were Made (But Not by Me): Why We Justify Foolish Beliefs, Bad Decisions, and Hurtful Acts by Carol Tavris (Amazon,) shows how we self-justify the mistakes we make, blame it others and perpetuate a destructive cycle.

Almost all of us carry an image of ourselves that we are smart, and basically good. When me make decisions that lead to poor outcomes, it conflicts with this internal image. This dissonance, if left unchecked, is resolved by self-justification. And so, unconsciously, we create fictions that absolve us of responsibility, restoring our belief that we are smart, moral, and right – a belief that often keeps us on a course that is dumb, immoral, and wrong.

As investors, we aim to have “strong convictions that are weakly held.” But it is easier said than done. Even though we know to follow scientific process, while faced with disconcerting evidence, we tend to double down – “having the courage of one’s convictions.”

It is part of the scientific attitude to change one’s beliefs once they are discredited. Well, it’s not an easy thing to do. Combine invested time, invested money, high hopes, high expectations, and a relative amount of pride, and you’re up for quite a challenge when confronted with contradicting evidence.

In investing, there are examples where both “sticking to ones guns” and “be like water, my friend” have worked. Here’s an example of the former: Tony Dye (from the Undercover Economist) stuck to his guns, lost his job, but was eventually proven right.

And as an example of why you shouldn’t stick to your guns: The Half-Life of Investment Strategies

And when you are wrong, even the best of us try to reduce dissonance by blaming somebody else: This Angry Stock Picker Says Trump Tweets Are Hurting His Investments

How do you change your mind?

Recommendation: Worth a read.

Book Review: Hedge Fund Market Wizards

Hedge Fund Market Wizards: How Winning Traders Win by Jack Schwager (Amazon,) is a collection of interviews of successful hedge fund mangers.

I excerpted the parts I found interesting and personally applicable to me in Evernote. Read that to get an idea of what the book is about.

The book would have been even better if he included some quant hedge fund managers other than Bridgewater’s Dalio.

Recommendation: Read it now!

Book Review: Founders at Work

Founders at Work: Stories of Startups’ Early Days (Amazon,) is a collection of interviews of successful, white, men who founded tech startups.

The book is good for two things:

  1. Knowing that start up founders come from a wide variety of backgrounds and walk their own path.
  2. Creating a list of twitter users you may want to follow.

Recommendation: skip.

Book Review: Principles – Life and Work

In Principles: Life and Work (Amazon,) Ray Dalio, a highly successful hedge fund manager tries to write out rules for living one’s life and conducting business.

He should have stuck to managing other people’s money and spared us this tome. It is highly repetitive and completely off the rails. He thinks the world and our minds work like “machines” and that if you can figure out how that machine works, you are all set. The problem is that once you call something a “machine,” your imagination is handicapped by the fact that most machines are deterministic. Real life, business and investing is a system – a complex dynamic system. A system that changes based on how the people in the system behave. Good luck trying to “figure it out.”

The book is gibberish. If you really want to read a self-help book, read the very entertaining The Subtle Art of Not Giving a F*ck (Amazon.)