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Overconfidence in memory could emerge from our daily experience: We recall events easily and often, at least if they are important to us, but only rarely do we find our memories contradicted by evidence, much less take the initiative to check if they are right. We then rely on confidence as a signal of accuracy — in ourselves and in others. It’s no accident that Oprah Winfrey’s latest best seller is called “What I Know For Sure,” rather than “Some Things That Might Be True.”Continue reading the main story Our lack of appreciation for the fallibility of our own memories can lead to much bigger problems than a misattributed quote. Memory failures that resemble Dr. Tyson’s mash-up of distinct experiences have led to false convictions, and even death sentences. Whose memories we believe and whose we disbelieve influence how we interpret controversial public events, as demonstrated most recently by the events in Ferguson, Mo.Erroneous witness recollections have become so concerning that the National Academy of Sciences convened an expert panel to review the state of research on the topic. This fall the panel (which one of us, Daniel Simons, served on) released a comprehensive report that recommended procedures to minimize the chances of false memory and mistaken identification, including videotaping police lineups and improving jury instructions.

Memory Games Memory is malleable, dynamic and elusive. In this hour, TED speakers discuss how a nimble memory can improve your life, and how a frail one might ruin someone else's.

Ethics refers to a prescribed or accepted code of conduct. Ethical issues are a set of moral values that need to be addressed while carrying out business. Businesses operate in a society that is structured around moral values. Therefore, when conducting its operations, a business has certain responsibilities which are to provide the society with quality goods and services that will improve the people’s living standards.

In 1998 the journalist Ron Rosenbaum published Explaining Hitler. Contrary to what the title might suggest, it is not an explanation of Hitler, per se, but rather a 500-page meta-analysis of different theories intended to explain Hitler. Ron Rosenbaum traveled from the ruins of Hitler's Austrian birthplace to meet the historians, psychologists, and Nazi-hunters who have promoted different explanations for Hitler's evil. Whether the basis of the theories are plausible (Hitler's Jewish ancestry) or extremely unlikely (Hitler's penis was bitten off while he attempted to pee into the mouth of a billy goat) they are all presented with a relentless skepticism that makes reading Explaining Hitler a unique and destabilizing experience.

Imagine that someone else was controlling your actions. You would still look like you, and sound like you, but you wouldn’t be the one deciding what you did and what you said. Now consider: would anyone notice the difference?

If I started shadowing someone else’s speech, would my friends and family notice? I would like to think so. Most of us would like to think so. But how easy would it be? Do we really listen to each others’ words, after all, or do we just assume that because person X is speaking, they must be saying the kind of thing that person X likes to say? We’re getting into some uncomfortable territory here.

The drone operator who said 'No' 21 January 2015 Last updated at 00:57 GMT For almost five years, Brandon Bryant worked in America's secret drone programme bombing targets in Afghanistan and elsewhere.He was told that he helped to kill more than 1,600 people, but as time went by he felt uneasy with what he was doing. He found it hard to sleep and started dreaming in infra-red. Brandon Bryant told Witness about his doubts and the mission that convinced him it was time to stop. Witness is a World Service programme of the stories of our times told by the people who were there.

Then why was he killed? Without knowing who gave the orders, it’s possible to understand that the current political environment allowed for this to happen. Over the past year, in the wake of the annexation of Crimea and the war in eastern Ukraine, Russia has seen the rise of a new, much coarser and more doctrinaire political language. During the first decade of Putin’s rule, the Kremlin depicted its opponents as freaks or idiots, but now they are portrayed as outright enemies of their country. In a triumphant address to parliament last March, as Russia was formalizing its takeover of Crimea, Putin warned of “a fifth column,” a “disparate bunch of national traitors” determined to sow discord inside the country. Its members were obvious, if at first unmentioned: people like Navalny, an anti-corruption activist who had become the most popular leader in the country’s fractured opposition; Aleksei Venediktov, the editor-in-chief of Echo of Moscow, a long-beleaguered radio station that is one of the last homes for critical and liberal voices; and of course Nemtsov, a recognizable face​from all his years in politics, and a favorite opponent of pro-Kremlin activists and propagandists.

We tend to think of swear words as one entity, but they actually serve several distinct functions. Steven Pinker, in The Stuff of Thought, lists five different ways we can swear: “descriptively (Let’s fuck), idiomatically (It’s fucked up), abusively (Fuck you…!), emphatically (This is fucking amazing), and cathartically (Fuck!!!).” None of these functions require swearwords. In Bikol (a language of the Philippines), there’s a special anger vocabulary – many words have alternative words that refer to just the same thing but also mean you’re angry. In Luganda (an African language), you can make a word insulting just by changing its noun class prefix – from a class for persons to a class for certain kinds of objects, for instance. In Japanese, you can insult someone badly just by using an inappropriate form of ‘you’.