--- status: To Read Again title: Thinking, Fast and Slow subtitle: "" description: "One of the most influential books of the 21st century: the ground-breaking psychology classic - over 10 million copies sold - that changed the way we think about thinking 'There have been many good books on human rationality and irrationality, but only one masterpiece. That masterpiece is Thinking, Fast and Slow' Financial Times 'A lifetime's worth of wisdom' Steven D. Levitt, co-author of Freakonomics Why do we make the decisions we do? Nobel Prize winner Daniel Kahneman, 'the world's most influential living psychologist' (Steven Pinker) revolutionised our understanding of human behaviour with Thinking, Fast and Slow. Distilling his life's work, Kahneman shows how there are two ways we make choices: fast, intuitive thinking, and slow, rational thinking. He reveals how our minds are tripped up by error, bias and prejudice (even when we think we are being logical) and gives practical techniques that enable us all to improve our decision-making. This profound exploration of the marvels and limitations of the human mind has had a lasting impact on how we see ourselves. 'The godfather of behavioural science ... his steely analysis of the human mind and its many flaws remains perhaps the most useful guide to remaining sane and steady' Sunday Times" categories: - Psychology - Non-fiction - Thinking authors: - [[Daniel Kahneman]] published_on: 2011-11-03 publisher: Penguin UK pages: 432 isbn: 141,918,926 cover: http://books.google.com/books/content?id=oV1tXT3HigoC&printsec=frontcover&img=1&zoom=1&edge=curl&source=gbs_api local_cover: 50 Resources/51 Attachments/51.03 Public/Thinking Fast and Slow (book).jpg link: https://amzn.to/4ciGtDM tags: - type/book - books - summaries - thinking - decision_making - psychology - zone/areas - zone/areas/literature_notes created: 2024-07-05T16:16 updated: 2026-04-01T14:44 public_note: true --- # Thinking Fast and Slow (book) - Author(s): [[Daniel Kahneman]] - Link: https://amzn.to/4ciGtDM ![[Thinking Fast and Slow (book).jpg|200]] # Brief description Generated by Grok: Our minds operate with two systems of thought. System 1 is fast, intuitive, and emotional, handling everyday decisions effortlessly but prone to biases and errors, like jumping to conclusions based on heuristics or being swayed by anchoring effects. System 2 is slower, more deliberate, and logical, engaging when we need to focus, calculate, or override impulses, though it demands effort and is lazy by nature, often deferring to System 1's shortcuts. Understanding this duality reveals why we make irrational choices, from overconfidence in predictions to misjudging probabilities, and highlights the illusions that distort our judgment. To navigate life's uncertainties, we must recognize these cognitive pitfalls: the availability heuristic makes us fear vivid but rare events; loss aversion in prospect theory explains why we hate losses more than we value gains; and the planning fallacy leads us to underestimate tasks. By harnessing System 2 to check System 1, we can improve decisions in economics, policy, and personal life, fostering a more rational approach amid the noise of intuition and experience. # Key quotes - # Key ideas - System 1 - Impulsive, automatic, snap judgements - System 2 - Thoughtful, deliberate and rational - Bat ball problem - If a bat and ball costs $1.10, bat costs 1 dollar more than ball, what’s the cost of ball? - Law of least effort - Brain always takes least effort to come to conclusions, this leads to snap judgements via various cognitive biases - We are not in control of our thoughts - Priming: External things that influence one’s thoughts and actions unconsciously - Snap judgements - Two cognitive biases occur because we make quick judgements - Halo effect - Exaggerated emotional coherence - Brains ability to oversimplify things without sufficient evidence - If you met someone recently who are nice to you, and if someone asks for some donation, automatically the person you met comes to your - Confirmation bias - People tend to agree with things that supports their previous beliefons unconsciously - Halo effect - Exaggerated emotional coherence - Brains ability to oversimplify things without sufficient evidence - Confirmation bias - People tend to agree with things they already familiar it - Heuristics - The shortcuts our mind developed to quickly assess our surroundings to make snap judgements - Sometimes dangerous as our mind overuses them - Substitution heuristics - Answer easier question than one was actually posed - Trying to quickly answer the question by comparing it with our ideal thought in mind instead of taking a step back and doing background research - Availability heuristics - Overestimate something’s probability because you hear it often - Example: Accidents causes more death than strokes because you don’t hear about every stroke cases in newst every stroke cases in news - Statistics - If you want to predict something at least approximately, keep base rate in mind - If an airlines run 80% of Boeing fights and 20% of Airbus flights, those are the base rates. Next time you can predict what flight might you get after booking the ticket - Base-rate-neglect happens when we find what we expect than what will happen most likely - Just because you saw 3 Airbus flights continuously in the terminal, doesn’t mean your flight will be airbus, there is still 80% chance it’s boeing as per base rate - We fail to remember that everything regresses to the mean - If a footballer scores 5 goals per month on average, but then scores 10 goals one month, we can expect her to continue the new streak, things always tilt back to average ## References -