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Do some scientists hold on to a belief longer than they should? Or, more provocatively phrased, when does a scientific belief become an article of faith?

This kind of posture, when there is a persistent holding on to a belief that is continually contradicted by facts, can only be called faith. In the quantum case, it's faith in an ordered, rational nature, even if it reveals itself through random behavior. "God doesn't play dice," wrote Einstein to his colleague Max Born. His conviction led him and others to look for theories that could explain the quantum probabilities as manifestations of a deeper order. And they failed. (And we now know that this randomness will not go away, being the very essence of quantum phenomena.) There is, however, an essential difference between religious faith and scientific faith: dogma. In science, dogma is untenable. Sooner or later, even the deepest ingrained ideas — if proven wrong — must collapse under the weight of evidence. A scientist who holds on to an incorrect theory or hypothesis makes for a sad figure. In religion, given that evidence is either elusive or irrelevant, faith is always viable.

New research suggests the size of your car effects how you drive. If you have a big car, studies show you may be more likely to break the law. It has to do with posture and how powerful you feel.

The tattoo stretched across the man's chest. It said "Do Not Resuscitate." His signature was tattooed at the end. "We were shocked," remembers Holt. "We didn't know what to do." The tattoo, and the hospital's decision about what it required of them, has set off a conversation among doctors and medical ethicists around the country about how to express one's end-of-life wishes effectively, and how policymakers can make it easier.

"Tell me what fear is," Tranel began. "Well, that's what I'm trying to -- to be honest, I truly have no clue," SM said, her voice raspy. That's actually a symptom of the condition that stole fear from her. Urbach-Wieth disease

Even though she's a talented artist, she always has trouble drawing (or reading) a fearful facial expression. "I wonder what it's like, you know, to actually be afraid of something," she told Tranel.

That's actually just one of two times that SM has been held at knife point. She's also been held at gunpoint twice. And after the above incident, she didn't feel like she should call the police. The threat had passed. She didn't have any lasting trauma, because the event had failed to faze her. SM isn't stupid. She understands what can and can't kill her. But she lacks the quick, subconscious, visceral response that the rest of us feel when we're exposed to danger.

A series of studies suggests that, while a product’s ethics may influence purchasing decisions, many shoppers choose simply not to know whether something was ethically made. That includes shoppers who care about social responsibility. And shoppers who ignore ethical matters can even develop a negative opinion about people who do express ethical concerns—which makes them even less likely to pay attention to ethical issues in the future.

“You feel badly that you were not ethical when someone else was,” Rebecca Reczek, a professor of marketing at Ohio State University and one of the study’s authors, told NPR about the results. “It’s a threat to your sense of self, to your identity. So to recover from that, you put the other person down.”

International supply chains, she points out, are notoriously opaque, and the free market doesn’t have any good way to deal with the way this system stifles information. It might be best, she says, if these matters were regulated before the products even reached consumers, taking ethical dilemmas out of the shopping equation. Of the unethical choice, like a polluting car or a shirt made with exploited labor, she suggests: “Maybe we just shouldn’t have it available.”