TOK@ISPrague

It’s not true that Chris Burden, the profoundly satirical Los Angeles artist who died last week, of cancer, at sixty-nine, had himself shot in the arm for the performance work “Shoot,” in 1971. Rather, he was shot by a friend whose claim to be a marksman proved an overstatement. The .22 bullet was supposed to only graze Burden. The shooter missed. So Burden told me, years ago. He shared with others that he had been frightened of having himself crucified on a Volkswagen, for “Trans-Fixed” (1974), but was pleasantly surprised by how painlessly the thin nails passed through his hands. He went to extremes, but he wasn’t nuts. When, nearly naked and holding his hands behind him, he wriggled across fifty feet of broken glass in “Through the Night Softly” (1973), the glass was the crumbled safety kind—not that that made for comfort. He said that he liked how the scattered bits, glittering on the asphalt of a parking lot, in the black-and-white film of the event, resemble a starry sky.

Marsh, who is now sixty-five, is one of Britain’s foremost neurosurgeons. He is a senior consultant at St. George’s Hospital, in London, and he helped to pioneer a kind of surgery in which patients are kept awake, under local anesthesia, so that they can converse with their surgeons while they operate, allowing them to avoid damaging what neurosurgeons call “eloquent,” or useful, parts of the brain. Marsh has been the subject of two documentary films. Still, he writes, “As I approach the end of my career I feel an increasing obligation to bear witness to past mistakes I have made.” A few years ago, he prepared a lecture called “All My Worst Mistakes.” For months, he lay awake in the mornings, remembering the patients he had failed. “The more I thought about the past,” he recalls in his book, “the more mistakes rose to the surface, like poisonous methane stirred up from a stagnant pond.”

This War Of Mine provides an experience of war seen from an entirely new angle. For the very first time you do not play as an elite soldier, rather a group of civilians trying to survive in a besieged city. During the day snipers outside stop you from leaving your refuge, so you need to focus on maintaining your hideout. At night you get a chance to scavenge nearby locations for items that will help you stay alive. Make life-and-death decisions driven by your conscience. Try to protect everybody from your shelter or sacrifice some of them to endure the hardships. During war, there are no good or bad decisions; there is only survival. The sooner you realize that, the better.

The digital age is also raising broader philosophical questions about memory. How much do we need to remember when it can be effortlessly recalled for us by a machine? If the use of search engines for retrieving facts is allowed at some point in the future, exams themselves might have to change.

Last week, Marvel launched a new Avengers movie, “Age of Ultron,” and this month it’s launching a new comic book, “A-Force.” Ultron is a robot with artificial intelligence who believes that the only way to achieve peace on earth is to exterminate the human race. The A-Force is a race of lady Avengers, led by She-Hulk, who come from a “feminist paradise,” but I don’t know what that could possibly mean, because they all look like porn stars.

In most Western democracies, separation of church and state generally means that the government leaves people free to observe their religion’s traditions, diets or dress codes, so long as they do no harm to other groups. In France, however, the stern code of secularism known as laïcité often seems to cross from protecting religious expression into imposing a state-defined secular behavior — most often on the country’s sizable Muslim population. The latest example came when a school in northeastern France twice sent a 15-year-old Muslim girl home for wearing a skirt that was deemed too long.

It seems that getting end-of-life patients and their families to endorse “do not resuscitate” orders has been challenging. To many ears, “D.N.R.” sounds a little too much like throwing Grandpa under the bus. But according to a paper in The Journal of Medical Ethics, when the orders are reworded to say “allow natural death,” patients and family members and even medical professionals are much more likely to give their consent to what amounts to exactly the same protocols.

But now experts say a reliance on sat-navs and smartphone map apps is undermining map-reading skills. So here are five reasons why you should love maps and resist the easy attraction of the sat-nav.

The math behind these formulas may be elegant, but applying them is more complicated.