The World's Best Book Summaries
What is the illusion of validity? Why is it an illusion, and why is it a problem? The illusion of validity is the tendency to be overconfident about our skills of prediction. We’re especially vulnerable to the illusion of validity when faced with data points that seem to form a coherent narrative. Learn what the illusion of validity is and why it happens, with examples.
How can you measure your well-being, according to Daniel Kahneman in Thinking, Fast and Slow? We’ll cover the steps of measuring well-being and how to improve well-being.
What was the Cognitive Revolution in Sapiens? How did it allow our species to survive, while other human species, such as Neanderthals, disappeared? The Cognitive Revolution was the moment in human history when our ancestors developed three new abilities: flexible language, communication about 3rd parties, and collective fictions. The Cognitive Revolution allowed homo sapiens to develop the societies that characterize the species today. We’ll cover the three aspects of the Cognitive Revolution as described in Yuval Noah Harari’s book Sapiens and expand upon the above Cognitive Revolution definition.
What does “representativeness” mean in psychology? What are examples of representativeness heuristics? The representative heuristic is when you organize objects by their similarities and categorize them around a prototype. The representativeness heuristic describes when we estimate the likelihood of an event by comparing it to an existing prototype in our minds. We’ll go more in depth into the above representative heuristic definition and cover multiple representative heuristic examples in psychology.
What is cognitive ease? What is it good for, and when does it hinder you? Cognitive ease is an internal measure of how easy or strained your cognitive load is. In a state of cognitive ease, you’re probably in a good mood, believe what you hear, trust your intuitions, feel the situation is familiar, are more creative, and are superficial in your thinking. We’ll cover the properties of cognitive ease and how to use the concept to get your point across and convince others of its truth.
What is the conjunction fallacy? How can you avoid it? Conjunction fallacy is the belief that the conjunction of two events happening is more probable than one happening. Often, extra details that create a coherent story make the events in that story seem more probable, even though the extra conditions needing to be met make the conjunction less probable. The best way to illustrate this is with a conjunction fallacy example. We’ll cover two examples of the conjunction fallacy and how to counter this bias.
What was the process of the evolution of human intelligence? How did the evolution of the human brain occur in tandem with the evolution of human intelligence? The evolution of human intelligence involved an increased brain size and the development of three skills: the creation of flexible language, communication about 3rd parties, and collective fictions. This evolution gave humans a leg-up in the animal world. We’ll cover the characteristics of the evolution of human intelligence and how that evolution shaped the modern world.
What is the peak-end rule? What does it have to do with happiness? The peak-end rule is the theory that the overall rating is determined by the peak intensity of the experience and the end of the experience. It does not care much about the averages throughout the experience. Learn how the peak-end rule applies to happiness and how it alters the way you remember experiences.
What is overconfidence bias? How do you avoid it? Overconfidence bias is when a person feels more confident in the accuracy of his or her judgment than objective standards would indicate. Overconfidence bias can lead to bad decisions and faulty predictions. Learn what overconfidence bias is, see examples of different types of overconfidence bias, and learn how to avoid the overconfidence effect.
What are framing effects in psychology? How do framing effects affect decision making? The framing effect is a cognitive bias in which people make decisions based on whether the options are “framed,” or presented, as losses or gains. An outcome presented as a gain is much more favorable as the same outcome framed as a loss. We’ll cover how framing effects impact your decision making and look at framing effect examples.