When it came to recommending a course of action, almost everyone chose the first one they thought of.

This is predictable. Most people, most of the time, solve problems by grabbing the first solution that pops into their heads—the first insight. In a large number of situations this is reasonable. It is the efficient way to get through life. We simply don’t have the time, energy, or mental space to do a full and complete analysis of every issue we face.

Not every bad decision is rushed, nor is every good one made slowly. It’s not that simple.

People mistake choosing for decisiveness and the decision-making process for waffling. Part of what makes slowing down and reasoning through a problem difficult is that, to the outside observer, it might look like inaction. But that inaction is a choice.

The quality of your decisions is directly related to the quality of your thoughts. The quality of your thoughts is directly related to the quality if your information.

Many people treat all sources of information as if they’re equally valid. They’re not. While you might value getting everyone’s opinion, that doesn’t mean each opinion should be equally weighted or considered.

A lot of the information we consume is in the form of highlights, summaries, or distillations. It’s the illusion of knowledge. We learnt the answer but can't show our work.

A third benefit to writing down your thoughts is that it allows other people to see your thinking, which is mostly invisible. And if they can see it, they can check it for errors and offer a different perspective that you might otherwise be blind to. If you can't simply explain your thinking to other people (or yourself), it’s a sign that you don’t fully understand things and need to dig deeper and gather more information.

A final benefit to writing down your thoughts is that it gives other people an opportunity to learn from your perspective. Many organizations would benefit from having a database that recorded how every person in the organization went about making decisions. Imagine the value of a searchable catalog of decisions in your organization. A system like this would allow people in different parts of the organization to check each other’s thinking.

Conclusion

The Value of Clear Thinking

Good judgment is expensive, but poor judgment will cost you a fortune.

The overarching message of this book is that there are invisible instincts that conspire against good judgement. Your defaults encourage you to react without reasoning— to live unconsciously rather than deliberately.

When you revert to defaults, you engage in a game you can't win. When you live a life run on autopilot, you get bad results. You make things worse. You say things that can't be unsaid and do things that can't be undone. You might accomplish your immediate goal, but you fail to realize that you’ve made it harder to achieve your ultimate goals. All of this happens without consciously being aware you are exercising judgment in the first place.