In the first part of this article, we focused on 5 traps that hinder our ability to think rationally. As a quick recap, we discussed:

The Anchoring Trap: Over-Relying on First Thoughts The Status Quo Trap: Keeping on Keeping On The Sunk Cost Trap: Protecting Earlier Choices The Confirmation Trap: Seeing What You Want to See The Incomplete Information Trap: Review Your Assumptions

Now it’s time to complete the list and expose the remaining 5 dangerous traps to be avoided. Let’s dive right in.

6. The Conformity Trap: Everybody Else Is Doing It

In a series of experiments, researchers asked students in a classroom a series of very simple questions and, sure enough, most of them got the answers right. In another group, they asked the same questions but this time there were actors posing as students, purposefully pushing wrong answers. This time around, many more students provided wrong answers based on the leads from the researchers’ assistants.

This “herd instinct” exists — to different degrees — in all of us. Even if we hate to admit it, other people’s actions do heavily influence ours.

We fear looking dumb: failing along with many people is frequently not considered a big deal, but when we fail alone we must take all the heat ourselves. There’s always peer pressure to adopt the behaviors of the groups we’re in.

This tendency to conform is notoriously exploited in advertising. Businesses often sell us products not based on their features, but by showing how popular they are: since others are buying it in droves, why would we not join them?

Conformity is also one of the main reasons why once a book makes into a well-known best-sellers list, it tends to “lock in” and continue there for a long time. People like to consume what “everybody else” is consuming.

What can you do about it?

Discount the influence of others. When analyzing information, shield yourself from others’ opinions — at least at first. This is the best way to decide without being subconsciously swayed by popular opinions.

When analyzing information, shield yourself from others’ opinions — at least at first. This is the best way to decide without being subconsciously swayed by popular opinions. Beware “social proof”. Always raise a flag when someone tries to convince you arguing primarily on the popularity of a choice, instead of on its merit.

Always raise a flag when someone tries to convince you arguing primarily on the popularity of a choice, instead of on its merit. Be courageous. Be willing to overcome obstacles and defend your viewpoints, despite their unpopularity. Don’t be afraid to point out that the Emperor wears no clothes.

7. The Illusion of Control Trap: Shooting in the Dark

Have you noticed that the vast majority of lotto players pick their own numbers instead of using the sometimes available ‘auto-pick’ option (where the point of sales terminal chooses the numbers for you)? We all know that however the numbers are chosen doesn’t change the chance of winning, so why the strong preference for picking our own numbers?

Curiously, even in situations we clearly can’t control, we still tend to irrationally believe that we can somehow influence results. We just love to feel in control.

Of course, it’s always easier to illustrate this trap with chance games, but the tendency to overestimate our personal control of events influences every aspect of our daily lives.

Unfortunately, contrary to the lottery example above, the outcomes of our decisions are usually complex and interconnected. It’s hard to assess to what extent we’re responsible for the results we get. While some of the outcomes can be traced back to our own choices, a part of them will surely remain just as well out of our direct control.

What can you do about it?

Understand that randomness is part and parcel of life. Although it may be hard to fathom or even admit it, some things are just random — in the sense that they don’t depend on your effort at all. Accept responsibility for the things you can influence, but know that for many others there is not much you can do. Better than assuming or expecting that every event is under your control is to consciously choose how you respond to them.

Although it may be hard to fathom or even admit it, some things are just random — in the sense that they don’t depend on your effort at all. Accept responsibility for the things you can influence, but know that for many others there is not much you can do. Better than assuming or expecting that every event is under your control is to consciously choose how you respond to them. Beware of superstitions. Consider how much of your decisions are based on things you cannot really explain. Make those unknowns explicit and put them under scrutiny — instead of pretending you can control them.

8. The Coincidence Trap: We Suck at Probabilities

John Riley is a legend. He won a one-in-a-million-chance lottery… twice! That makes it a 1-in-a-trillion event — which means that the lottery is rigged or maybe John must have been singled out by Lady Luck, right?

Well, not really. Let’s try a little math: If, throughout the years, 1000 lottery winners keep playing at least 100 times attempting the “miracle” of winning it once more, that adds up to a non-negligible chance of 10% that someone will make it.

This means that the “miracle” is not only possible but — given enough attempts — its likelihood increases to a point of becoming almost inevitable.

Another classic example: it takes a group of just 23 people to make it more likely than not that two of them share the same birthday (day and month).

That’s how unintuitive probabilities are.

What can you do about it?

Don’t over-rely on gut estimates. While useful many times, gut estimates will sometimes be way off the mark. Make sure you properly discount their importance or that you understand the ramifications of trusting them.

While useful many times, gut estimates will sometimes be way off the mark. Make sure you properly discount their importance or that you understand the ramifications of trusting them. Beware of “after the fact” probabilities. One thing is the probability of someone having won the lottery twice — looking at it in retrospect. Another completely different thing is that a particular person — chosen before the outcome — wins it: that would indeed qualify as a one-in-a-trillion event — and would make anyone seriously doubt the legitimacy of that lottery.

9. The Recall Trap: Not All Memories Are Created Equal

What’s your best guess for the probability of a randomly selected flight ending in a fatal crash? While many people grossly overestimate it, MIT studies show that in reality these fatal accidents happen at a rate of only 1 in 10,000,000.

The fact that people suck at estimating probabilities explains only partially this tendency to mis-estimate: if you ask the same question right after a major airplane accident, be prepared for even more biased assessments.

What happens is we analyze information based on experience, on what we can remember from it. Because of that, we’re overly influenced by events that stand out from others, such as those with highly dramatic impact or very recent ones. The more “special” an event is, the greater the potential to distort our thinking. Of course, no one ever bothers about the other 9,999,999 planes that arrive safely at their destinations — so there’s nothing more natural than forgetting about them.

What can you do about it?

Get hard data. As usual, don’t rely on your memory if you don’t have to. Use it, of course, but always endeavor to find data that confirms or discounts your recollection as soon as possible.

As usual, don’t rely on your memory if you don’t have to. Use it, of course, but always endeavor to find data that confirms or discounts your recollection as soon as possible. Be aware of your emotions. When analyzing information, try to emotionally isolate yourself from it, at least temporarily. If you’re analyzing an event, pretend it happened a long time ago or that it happened to someone else unrelated to you. Likewise, if asking for opinions, find people who are not emotionally involved with them or their consequences.

When analyzing information, try to emotionally isolate yourself from it, at least temporarily. If you’re analyzing an event, pretend it happened a long time ago or that it happened to someone else unrelated to you. Likewise, if asking for opinions, find people who are not emotionally involved with them or their consequences. Beware the media. The media is notorious for exaggerating the importance of certain events while conveniently neglecting others. Always evaluate information on its relevance and accuracy, and not on how much exposure it gets.

10. The Superiority Trap: The Average is Above Average

A study surveyed drivers asking them to compare their driving skills to other people in the experiment.

Almost all the participants (93%!) rated themselves as ‘above average’.

With few exceptions, people have much inflated views of themselves. They overestimate their skills and capabilities, leading to many errors in judgment.

And this is the reason I decided to close this article with this particular thinking trap. After making ourselves aware of these many thinking traps, we may now become susceptible to falling into a new one: the belief that we’re now immune to them.

Of course, the first step to avoid thinking traps is awareness and constant vigilance, but beware: it’s much, much easier to notice others falling into these traps than us.

What can you do about it?

Be humble. Always remember that everyone has blind spots (yes, that includes me and you)!

Always remember that everyone has blind spots (yes, that includes me and you)! Surround yourself with honest people. If we all have blind spots, nothing better than having honest people around us to point them out to us.

If we all have blind spots, nothing better than having honest people around us to point them out to us. Don’t go overboard. These ‘thinking traps’ are inherent parts of us: they make us human. Applying rigor and rational thinking to our decisions is important, but that doesn’t mean that intuition has completely lost its place. Don’t get me wrong: I still think that knowing about our own thinking traps is very useful — just don’t get too worked up about them.

Further Resources

These ten thinking traps barely scratch the surface when it comes to how our thinking can be biased. Wikipedia’s list of cognitive biases has more than 100 of these traps, making it a hard-to-beat starting point for further learning.

The references for the studies that back up the data in this article can be found on the respective articles on Wikipedia, as well as on the book Smart Choices. That’s a marvelous book about decision making, and one which I highly recommend. Another great book to check out is Thomas Gilovich’s How We Know What Isn’t So.

I hope you enjoyed the article. And just in case you missed it, here’s part 1, where you can find the first 5 thinking traps we started with.

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