#Decision making

Our brain operates with two distinct modes of thinking:

System 1 is fast, automatic, intuitive and emotional. It instantly recognizes faces and detects danger. It runs without conscious effort.

System 2 is slow, deliberate, analytical and logical. It solves complex problems and makes considered decisions.

Most of our mistakes come from System 1 making decisions in place of System 2.

We are strongly influenced by the first number we see, even when it's completely arbitrary.

If you're asked whether Gandhi was older or younger than 114 when he died, then asked his exact age, you'll give a higher number than if the first question had mentioned 35.

This heuristic is used everywhere: salary negotiations, crossed-out prices in stores, opening offers.

The pain of losing is roughly twice as intense as the pleasure of winning. Losing 100 euros hurts more than gaining 100 euros feels good.

This bias explains why:
- Free trials work so well (we don't want to "lose" what we have)
- We hold on to losing stocks (hoping to break even)
- Framing things as losses is more persuasive

Your frog is your most important and most intimidating task, the one you're most likely to put off. Brian Tracy advises tackling it first thing, in the morning, before anything else. By going straight at what really matters, you start the day with a win and stop letting small, low-value tasks devour your energy and your time.

According to the Pareto principle, 20 percent of your activities produce 80 percent of your results. Tracy urges you to spot those few high-value tasks rather than scattering your effort. The ABCDE method rounds out this approach: rank every task from A (major consequences) to E (to eliminate), and never move on to a B task while an A task remains unfinished.

Every minute spent planning saves you several in execution. Tracy recommends preparing your list the night before, then breaking big tasks down into simple steps, like slices of salami. Faced with an intimidating project, you move forward piece by piece. The key to beating procrastination comes down to a few words: take action now, without waiting for the perfect moment.

The first habit is the foundation of all the others. Being proactive means taking responsibility for your own life. Proactive people recognize that they have the freedom to choose their responses to outside stimuli.

Between a stimulus and your response, there is a space. In that space lies your power to choose. And in that choice lie your growth and your freedom.

Before climbing the ladder of success, make sure it's leaning against the right wall. This habit is about clearly defining what truly matters to you.

Covey suggests a powerful exercise: imagine your own funeral. What do you want people to say about you? That vision then guides your daily decisions.

Time management is not about efficiency but about effectiveness. The Eisenhower matrix divides tasks into 4 quadrants:

- Quadrant 1: Urgent and Important (crises)
- Quadrant 2: Not urgent but Important (prevention, planning)
- Quadrant 3: Urgent but not important (interruptions)
- Quadrant 4: Neither urgent nor important (distractions)

Effective people spend most of their time in Quadrant 2.

Morgan Housel opens his book with a strong conviction: doing well with money has little to do with how smart you are, and everything to do with how you behave. He cites Ronald Read, an American janitor and gas station attendant who left more than 8 million dollars at his death, simply by saving and letting his investments grow for decades.

By contrast, Richard Fuscone, a Harvard-educated former Merrill Lynch executive, went bankrupt after the 2008 crisis. Finance is not a hard science like physics: it is a behavioral discipline, where patience and self-control matter far more than credentials.

In practice, work on your reactions first: your relationship with fear, greed, and waiting determines your financial results.

Warren Buffett is Housel's favorite example: he started investing seriously at age 10, and the vast majority of his fortune was built after he turned 65. His real secret is not just his investing talent, it is time: more than 75 years of uninterrupted investing.

Compound interest is counterintuitive, because our brains think in linear terms, not exponential ones. The results look trivial at first, then become spectacular over time.

The actionable lesson: start early, stay invested, and above all never break the machine. The best return is not the highest one, it is the one you can sustain the longest without interruption.

We judge wealth by what it displays: cars, watches, big houses. Housel flips the perspective: those purchases show money that was spent, in other words money that no longer exists. Real wealth is the assets you cannot see: savings, investments, the reserve quietly built up over time.

That invisible wealth buys the most precious thing of all, according to Housel: control over your time. Being able to say no, change jobs, or absorb a surprise expense without panicking.

To put this idea into practice, aim for "enough" rather than always more: define your own level of sufficiency and keep a margin of safety, because no gain is worth risking what you already have.

Hans Rosling asked simple questions about the state of the world to thousands of people: students, journalists, Nobel laureates. The result: they score lower than chimpanzees answering at random. The cause is not ignorance, but ten dramatic instincts inherited from evolution.

Among them: the gap instinct (seeing the world split into two camps), the negativity instinct (noticing the bad more than the good), the straight line instinct (believing a curve will continue forever), the fear instinct and the size instinct (being impressed by a lone number).

Rosling offers a concrete antidote for each instinct. Recognizing when these reflexes kick in is the first step to regaining a fact-based view of the world.

Rosling replaces the outdated division between "developed countries" and "developing countries" with a scale of four income levels: less than 2 dollars a day at Level 1, up to more than 32 dollars a day at Level 4.

This grid changes everything: the majority of humanity today lives on Levels 2 and 3, in intermediate conditions that the old binary scheme kept invisible. The great "gap" between rich and poor that we imagine no longer exists in that form.

To make these levels concrete, Rosling describes daily life at each level: how people get around, cook and sleep. Income, more than culture or religion, determines the way people live.

Rosling hammers home one principle: the world can be bad and getting better at the same time. Acknowledging progress is not naivety, it is accuracy. The share of humanity living in extreme poverty has been halved in twenty years, and 80 percent of the world's one-year-old children are vaccinated. Almost nobody knows this.

To think straight, adopt the statistician's reflexes: always compare one number to another, look at trends rather than snapshots, be wary of lone figures that seem enormous.

Expect bad news: the media amplify the spectacular, never the slow and steady improvements. Correct this bias actively.

We are wired to give back what we are given. Cialdini shows that even an unsolicited gift creates a debt: a free sample, an offered flower or a small favor is enough to trigger a disproportionate "yes".

The most formidable variant is rejection-then-retreat: you are first presented with an excessive request, then a more reasonable one. This apparent step back is perceived as a concession, which you feel obliged to repay by accepting.

To defend yourself, redefine the situation: if the gift is actually a sales technique, you owe no debt. Accept the gesture, but remain free in your response.

Once you have said yes, even to a very small thing, you want to stay consistent with that image of yourself. Persuasion professionals know it: a minimal first commitment opens the door to much heavier requests.

Cialdini details the "foot in the door" technique and lowballing: you are made to accept an attractive offer, then the advantage is withdrawn. Most people nevertheless stick to their decision. A commitment is all the more powerful when it is active, public and effortful.

Before giving in to a new request, ask yourself this question: "Knowing what I know now, would I make the same choice all over again?"

"Limited offer", "last items in stock", "only a few hours left": these phrases exploit a deep reflex. For Cialdini, we desire more what becomes hard to obtain, because scarcity signals value and threatens our freedom of choice.

The principle is even more powerful in two situations: when the scarcity is recent, because what has just become rare attracts more than what has always been rare, and when we are competing with others for the same thing, as in an auction or a sale.

When urgency rises, pause. Ask yourself whether you want this item for its real usefulness, or simply to own it before it disappears.