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Fact can be stranger than fiction. This is especially true of black holes, as Prof Stephen Hawking explains.For instance as soon as you entered the black hole, reality would split in two. "In one, you would be instantly incinerated, and in the other you would plunge on into the black hole utterly unharmed," as we have previously explored.In the 2016 Reith lectures broadcast on BBC Radio 4, Prof Hawking further examines and challenges the latest scientific thinking about black holes.

THE only time art ever seems to make news here in the West anymore is when a Pollock or Warhol sells for a sum commensurate with the budget of a “Transformers” film. It seems bizarre, then, to find ourselves grappling with international crises in which art is the issue: the imbroglio involving the Sony movie “The Interview,” the massacre at Charlie Hebdo in Paris. The incomprehension, whether bemused or horrified, that we feel toward people who take up arms against the creators of cartoons or comedies is a chastening reminder that there are still cultures in which art is not a harmless diversion or commodity, but something real and volatile, a potential threat to be violently suppressed. These attacks are, in a way, a savage, atavistic show of respect.

The album was disintegrating, and we removed the cards. Over the years I forgot about them, but in getting ready to move, I came across them again. One in particular is offensive in its captioning and art to people of African descent. While I presume there is a market for this type of memorabilia, there is no way I would seek to profit from it. I offered it to the National Museum of African American History and Culture in Washington. I never heard from them, so it moved with us.My husband thinks I should throw it away, but that feels wrong. I feel it is history that we should acknowledge, however painful and wrong. Your thoughts?

ARE you responsible for your behavior if your brain “made you do it”?Often we think not. For example, research now suggests that the brain’s frontal lobes, which are crucial for self-control, are not yet mature in adolescents. This finding has helped shape attitudes about whether young people are fully responsible for their actions. In 2005, when the Supreme Court ruled that the death penalty for juveniles was unconstitutional, its decision explicitly took into consideration that “parts of the brain involved in behavior control continue to mature through late adolescence.”

Douglas Van Praet argues that while decision making is governed by our emotions, brands should still provide people with a logical lifeline (but they should steer clear of research that lets the post-rationalizing tail wag the emotional dog).

One of the longest-running debates in marketing is whether to use a rational or emotional advertising approach in marketing--but cognitive science says that argument is pointless. While emotions overwhelmingly drive behavior, it is misguided to believe that thinking and feeling are somehow mutually exclusive. Emotion and logic are intertwined. Behavioral science is now telling us that we don’t really have “free will.” We have “free won’t.” We can give in to the visceral impulses that drive us or choose to apply the brakes of rational restraint. While we can’t choose our emotions because they originate unconsciously, we can choose our conscious response to our feelings. This is essentially what consciousness is--a series of critical reflections and interpretations about how we are feeling.

“Adjectives in English absolutely have to be in this order: opinion-size-age-shape-colour-origin-material-purpose Noun. So you can have a lovely little old rectangular green French silver whittling knife. But if you mess with that word order in the slightest you’ll sound like a maniac. It’s an odd thing that every English speaker uses that list, but almost none of us could write it out.”

One of the more benign aspects of Chinese medicine is acupuncture, a practice deemed superstitious in China in the 17th century until Mao Zedong reemployed it for political purposes in the fifties. Two decades later it infiltrated the American imagination. A myth was reborn. As Jeneen Interlandi writes, research results have been murky at best—one 2013 report of over 3,000 studies showed acupuncture to be no more effective than placebos.

So this was the real test. Would native-speaker Swedes, seven years after getting a new pronoun plugged into their language, be more likely to assume this androgynous cartoon was a man? A woman? Either, or neither? Now that they had a word for it, a nonbinary option, would they think to use it?

Mathematics and art are generally viewed as very different disciplines – one devoted to abstract thought, the other to feeling. But sometimes the parallels between the two are uncanny. From Islamic tiling to the chaotic patterns of Jackson Pollock, we can see remarkable similarities between art and the mathematical research that follows it. The two modes of thinking are not exactly the same, but, in interesting ways, often one seems to foreshadow the other. Does art sometimes spur mathematical discovery? There’s no simple answer to this question, but in some instances it seems very likely.

Swearing, Stephens thinks, may be a form of pain management, maybe even empowerment. Last week, he and a colleague, David K. Spierer, of Long Island University, described a new study in which swearing seemed to bolster physical strength.

One of Britain’s most respected Tudor historians has expressed concern that prospective students imagine Hilary Mantel’s novels are fact. John Guy told the Hay literary festival in Wales that Mantel’s Thomas Cromwell novels needed to be enjoyed for what they were: fiction. Mantel’s two novels, Wolf Hall and Bring Up the Bodies, have been a literary phenomenon, both winning the Man Booker prize and being adapted for the stage by the Royal Shakespeare Company. But they are novels, said Guy, despite what some applicants he interviews to study history at Cambridge seem to think.

As the doctor Mark Tonelli has argued, distinct forms of knowledge can’t be judged by the same standards: what a patient prefers on the basis of personal experience; what a doctor thinks on the basis of clinical experience; and what clinical research has discovered — each of these is valuable in its own way. While scientists concur that randomized trials are ideal for evaluating the average effects of treatments, such precision isn’t necessary when the benefits are obvious or clear from other data.

Distrusting expertise makes it easy to confuse an absence of randomized evaluations with an absence of knowledge. And this leads to the false belief that knowledge of what works in social policy, education or fighting terrorism can come only from randomized evaluations. But by that logic (as a spoof scientific article claimed), we don’t know if parachutes really work because we have no randomized controlled trials of them.

Experiments, of course, are invaluable and have, in the past, shown the consensus opinion of experts to be wrong. But those who fetishize this methodology, as the flossing example shows, can also impair progress toward the truth. A strong demand for evidence is a good thing. But nurturing a more nuanced view of expertise should be part of that demand.