The Black Book of Power: What Are Cognitive Biases?
What Are Cognitive Biases? The human mind is widely advertised as a reasoning instrument. It is in practice a very fast estimating device with a small, expensive analytical department that is almost never open. This episode is a tour of the estimating device and of the roughly 188 predictable errors it has been catalogued as making. Tversky and Kahneman opened the file in 1972 by demonstrating that human judgement runs on heuristics, shortcuts that trade accuracy for speed. The essay uses the now-standard division between Type 1 thinking, which is automatic, cheap, and built for decisions under uncertainty, and Type 2 thinking, which is deliberate, analytical, and metabolically costly. Most of your life is governed by the first, and the second is summoned only when something has already gone wrong. The tour covers the working parts. Anchoring lets the first number you hear govern every number that follows, which is why a salary offer or a crossed-out price does so much unearned work. A 2020 study found the anchoring effect operating through aesthetic and emotional impressions rather than figures alone, meaning you can be anchored by the look of a thing. Confirmation bias sorts evidence into agreeable and hostile before you have consciously read it. Loss aversion overweights what you might lose. The halo effect lends the attractive an unearned competence. Availability makes the vivid feel probable, which is how a single frightening news item outranks a decade of statistics. The historical illustration is the 1936 Literary Digest poll, which gathered 2.4 million responses and got the election catastrophically wrong. The failure was structural rather than numerical, since the sample reached magazine subscribers, car owners, and telephone customers, a portrait of prosperity rather than of the country. Volume of data offers no protection against a bias built into the collection. The essay's most useful move is to reclassify these errors as features. The cognitive bias codex frames them as failure points, which invites the fantasy that better logic would repair them. The evolutionary account frames them as adaptive functions, which explains something more important: manipulators do not attack your flaws, they press your features. Marketers, political operators, and platform designers are all in the business of pressing. The defences are procedural rather than heroic. Recognise decision fatigue, since a depleted person is a Type 1 person and therefore an available person. Introduce a deliberate delay between receiving information and forming a judgement, which is the only way the prefrontal cortex gets a hearing. Actively hunt the arguments that would damage your position. Learn your own psychological archetype, because interventions are not interchangeable. Above all, ask who profits from the shortcut you are about to take. The Black Book of Power devotes a chapter to precisely this, treating the biases as levers rather than blemishes. Naming a bias in the abstract changes nothing. Watching it worked, in the sequence a competent operator would use, is what converts a list of curiosities into a defence. Read this essay: https://stantaylor.com/blogs/basics/cognitive-biases Buy The Black Book of Power: https://stantaylor.com/products/black-book-of-power About Stan Taylor: https://stantaylor.com/pages/stan-taylor The Forbidden Pages: https://stantaylor.com/blogs/forbidden The Basics of Psychology: https://stantaylor.com/blogs/basics
