Unit 2 gave you five steps and one real problem to practise them on. This unit explores three situations in which the method can become difficult to use. None of them mean that you failed to understand it.

The first is also the most common: there is too much information in your head at once.

When you work on a problem, your mind performs three tasks. It takes in information, keeps that information available while you think, and works with it by comparing details, making connections, and putting things in a useful order.

There is a limit to how much it can do at once. As the authors explain, “the capacity of the conscious mind is quite limited in that it cannot perform all three of these activities efficiently at the same time, especially when the quantity or complexity of the information is significant.”

In simpler terms, trying to keep all the facts of a problem in your head can leave you with too little mental space to work with them.

This is a limit of your mental workspace, not a personal limitation. It does not mean that you cannot concentrate or that you are not intelligent enough. It happens to everyone when a problem becomes large or complicated enough.

Stress can reduce that space even further.

When under pressure, people tend to look for less information, use fewer of the resources available to them, consider fewer options, and make decisions more quickly.

Compare this with Lesson 8, where you were asked to generate plenty of options before evaluating them. If that exercise felt impossible rather than simply difficult, mental overload may have been the reason. It does not mean you lack imagination.

Three approaches can help. None of them require you to try harder.

• Get the information out of your head. The instruction is as direct as it sounds: “Take your thoughts out of your head and put them down on paper.” You can use a list, a rough diagram showing who is involved and how the different parts connect, or a voice note. A builder does not keep every measurement for a house in their memory. They work from a drawing. You create more mental space when your mind no longer has to store every detail.
• Use images, not only words. Replay the situation in your mind twice. First, experience it from your own perspective and ask: What am I thinking and feeling? Then imagine watching the situation slowly as an outside observer. Ask: What is actually happening? What is the other person saying and doing? The second perspective can reveal details that are difficult to notice when you are still inside the emotional experience.
• Make the problem smaller and clearer. Divide one large problem into several smaller ones. Each part should be specific enough for you to complete. Replace vague language with concrete descriptions. “Become financially independent by next year” may feel impossible to begin. “Reduce my overall expenses so I can save an additional 5% of my salary by the end of the year” gives you a clear place to start.

There is a quick way to check whether the problem is clear enough.

Write it down, then ask whether a friend reading it would understand exactly what you mean. If the wording is vague or could mean several different things, write it again.

This is the same skill introduced in Lesson 7: separating facts from assumptions and using specific language. It also explains why defining a problem can sometimes feel impossible. If you cannot describe it clearly, it may still be too large.

There is one useful connection to make with the previous lesson.

Lesson 10 explained that a plan which did not work gives you information about the plan, not a verdict about you. Some plans fail because they were created entirely inside an overloaded mind. Important facts may not have been available when the decision was made.

This is a problem of limited mental space. The solution is to reduce how much information your mind needs to hold at once.

The next lesson explores the second situation in which the method can stall. Sometimes there is enough space in your mind, but events are moving too quickly for you to access it in time.