Simple Habits for Thinking Clearly Under Pressure

Pressure does not usually make people stupid. It makes them fast, and fast is when a mind takes its shortcuts. This article sets out a handful of plain habits for the moments when you are rushed, annoyed or sure of yourself. None needs special training.

The idea behind all of them is that clear thinking is something you practise, not a talent you were issued. The quotations come from my book Thinking Clearly.

Why a mind fogs when it is rushed

You are standing in a car park, quite sure you left the car in row C. You can almost see it: the grey bonnet, the trolley bay, the puddle. Ten minutes later you find it in row F, next to a puddle you have never seen before. Nothing was wrong with your eyes. Your memory handed you a confident picture, and the confidence felt exactly like knowledge.

You do not see the world. You see your edit of it.

Here is a second example. A bat and a ball cost £1.10 together. The bat costs a pound more than the ball. How much is the ball? If ten pence arrived in your head before you finished reading, you are in a large club. The answer is five pence. You can check it, but checking is the part nobody volunteers for.

That is the pattern. Fast thinking does nearly all the driving, and slow thinking mostly signs off on where it has already gone. Feelings arrive before reasons. Stories assemble themselves from very little: a colleague does not reply to your email, and by lunchtime you have a theory, by teatime a motive. Being busy makes it worse, because a full morning of emails and meetings feels like thought and contains none.

The awkward part is that a foggy mind feels, from the inside, like a clear one. So the habits below do not rely on noticing that you are wrong. They are small routines you run anyway.

Separate what happened from what you made of it

Your neighbour walks past you in the car park without saying hello. That is the fact. Within about a second you have added that she saw you, that she chose not to speak, that this is about the bins last week, and that she has always been a bit like that. By the time you reach your front door you are composing a speech. None of the speech is about what happened. All of it is about what you decided it meant.

The habit is to say the fact on its own, in one plain sentence, before you act on anything. "She walked past without speaking." "The email says the launch plan is not realistic." Then notice how much of what you were about to do rested on the rest.

Two related moves help.

Name the feeling. A two-line email arrives: "Interesting choice. Let's discuss." You feel something hot and vague. If asked, you would say "fine". Finding the accurate word for it, whether that is embarrassed, worried or angry, matters, because the word you choose decides which problem you end up solving.

Define the term. A meeting argues for forty minutes about whether the launch was a success. One camp means it shipped on time. The other means somebody bought it. Both are right, and nobody has said which meaning is in use. Ask what the word means before debating whether it applies.

Put a gap before the reply

The solicitor finally writes. The email is short, gets your surname wrong and asks for a document you have sent twice already. Your fingers begin typing before your judgement has caught up. The draft opens with "As I have already explained".

The habit is a pause between the sting and the send. Write the reply if you must, then leave it. The point is not to suppress the reaction. It is to turn an automatic response into a choice.

For larger questions, use a longer gap. At eleven at night a big decision feels enormous, and you turn it over until it is worn smooth and tells you nothing new. At seven the next morning, over toast, the answer is often obvious and slightly boring. Give the problem your proper attention first, then let the night do some of the sorting. A walk works in a similar way: forty minutes staring at a spreadsheet, then the missing point turns up by the second lamp post.

It also helps to sort what you can affect from what you cannot. Once a decision is made and you are waiting on other people, checking your inbox every eleven minutes changes nothing except your mood.

Sort the decision before you make it

People spend their care in odd places. You can take forty minutes at night choosing between two nearly identical greys for the hall, having agreed to a three-year office lease that afternoon in about the time it takes to boil a kettle, because everyone was tired.

So the first question under pressure is what kind of decision this is. Most doors swing both ways: if the choice is wrong, you can walk back through. A few lock behind you. Move quickly through the first kind, where good enough really is good enough, and save the slow, careful walk for the second.

For the ones that lock, three habits are worth the time.

Run a pre-mortem. The launch meeting goes well. The arrows on the slides point upward. Six months later the thing has failed in a way everybody says they saw coming, though nobody spoke up at the time, because nobody wanted to be that person. The fix is to announce, before you start, that the project has already failed, and ask the room to explain why. Now the doubts are the assignment.

Kill the project on paper. It is much cheaper than the real thing.

Take the outside view. A friend renovating her kitchen has a spreadsheet, a good builder and a completion date. Ask how long kitchens usually take and she will tell you that is beside the point, because this is her kitchen. Start instead from what usually happens to projects like yours, and adjust for your own plan afterwards.

Hold beliefs as bets. You tell a friend with complete confidence that the car park barrier stays up until seven. The friend says, "Want to bet a tenner?" Something shifts in your chest. That shift is useful information about how sure you really were.

Certainty is a bet you have forgotten you placed.

Write it down

An opinion carried in your head feels solid. Then someone asks for it in an email, and it turns out to be a mood with a few facts attached. Writing shows you what you think, and what you have not yet thought.

Two small tests make this practical.

The one-sentence test. Your manager stops you by the lifts and asks what the report is actually saying. You have forty pages and charts. If what comes out is a tour of the methodology, the trouble is not the writing. It is upstream, in the thinking. Find the sentence first.

The decision journal. Ask yourself what you predicted about the last big project at work and you will find that you saw the result coming. You always did, because memory quietly edits the file. Before a decision plays out, write a few lines on what you expect and why. Later you can compare the outcome with what you actually thought.

The journal also protects you from judging a decision by its result alone. You can leave for the airport three hours early, pick the reliable line, and still watch your flight leave from a train stopped in a field. That was a good decision with a bad outcome. Without a record, the two blur together.

What to take from this

• Feeling sure and being right feel the same from the inside. Build routines that do not depend on spotting the difference.
• State the fact in one sentence before acting on the story around it.
• Name the feeling and define the key word.
• Pause before you reply. Sleep on the large questions.
• Ask whether the decision can be reversed. Go quickly if it can and slowly if it cannot.
• Before committing, imagine the project has failed and ask why.
• Write down what you expect before you know the result.

If you want the full version, Thinking Clearly: A Story in 100 Diagrams walks through how a mind gets foggy and how it clears, from biases and mental models to thinking in bets, argument, decisions, attention and writing, in 100 short chapters with a diagram in each. It will not make you right about everything. It is a 314-page PDF and costs £9 on Gumroad: https://matsiems.com/books/thinking-clearly.