Decision-making is difficult because, by its nature, it involves uncertainty. If there was no uncertainty, decisions would be easy! The uncertainty exists because we don't know the future, we don't know if the decision we make will lead to the best possible outcome. Cognitive science has taught us that relying on our gut or intuition often leads to bad decisions, particularly in cases where statistical information is available. Our guts and our brains didn't evolve to deal with probabilistic thinking.
Daniel LevitinThe mammalian brain evolved exquisite place memory because that was essential for survival. This is why squirrels have such a good memory for where they buried their nuts.
Daniel LevitinYou'd think people would realize they're bad at multitasking and would quit. But a cognitive illusion sets in, fueled in part by a dopamine-adrenaline feedback loop, in which multitaskers think they are doing great.
Daniel LevitinAlthough it is easier to find information these days, it is easier than ever before to find misinformation, pseudo-facts, unsupported and fringe opinions, and the like. Children should be taught at an early age what constitutes evidence, how to detect biases or distortions in newspaper accounts, and that there exist hierarchies of information sources. In the medical field, for example, a controlled experiment published in a peer-reviewed journal is a better source than a blog by the Ginseng Growers Association, promoting the health benefits of their own product.
Daniel LevitinWhen we have learned something, there's this thing called belief perseverance. Having learned something, we tend to cling to that belief, even in the face of overwhelming evidence to the contrary.
Daniel LevitinThe Roman philosopher Seneca the Younger (tutor to Nero) complained that his peers were wasting time and money accumulating too many books, admonishing that "the abundance of books is a distraction." Instead, Seneca recommended focusing on a limited number of good books, to be read thoroughly and repeatedly.
Daniel LevitinThe most important, the longest lasting, the strongest emotional, and the most practiced memories are the ones that are embedded the deepest in the brain, and because we have retrieved them so many times previously, they are the most able to be retrieved. We all hear about people who can remember their youth, their phone number, or street address from 70 years ago, but they cannot recall what they had for breakfast. The memory of this morning's breakfast wasn't rehearsed, and wasn't very important, so it fades away quickly.
Daniel Levitin