The late Benoit Mandelbrot, best known as the founder of fractal geometry, was born in Warsaw to a family of Polish-speaking Jews in 1924. In 1931 he and his family moved to Paris. They spent World War II hiding in a French village, where friends of his uncle—also a famous mathematician—took them in. In his posthumous memoir, The Fractalist, Mandelbrot tells the story of his childhood as well as of his later mathematical career. Adam Kirsch calls attention to Mandelbrot’s reflections on how he escaped the fate of most of French Jewry:

“Our constant fear,” Mandelbrot writes, “was that a sufficiently determined foe might report us to an authority and we would be sent to our deaths. . . . We escaped this fate. Who knows why?” One reason why, he suggests, is that his academic brilliance won him special consideration. “Xenophobia lost, meritocracy won,” he writes, and this would become the motto of his French experience.

The history of Eastern Europe, according to Mandelbrot, “included a growing number of stories in which a would-be ‘butcher’ is oversupplied with potential victims, and a person perceived to be special is somehow spared. Father must have felt it was very bad to be overly conspicuous, but very good to be seen as rare and special. This attitude, which he probably brought from Warsaw, created in me an elevated level of commitment and ambition.”

This week, there have been numerous unconfirmed reports about the fate of Esmail Qaani, who is the head of the Quds Force, the expeditionary arm of Iran’s Revolutionary Guards. Benny Avni writes:

On Thursday, Sky News Arabic reported that Mr. Qaani was rushed to a hospital after suffering a heart attack. He became [the Quds Force] commander in 2020, after an American drone strike killed his predecessor, Qassem Suleimani. The unit oversees the Islamic Republic’s various Mideast proxies, as well as the exporting of the Iranian revolution to the region and beyond.

The Sky News report attempts to put to rest earlier claims that Mr. Qaani was killed at Beirut. It follows several reports asserting he has been arrested and interrogated at Tehran over suspicion that he, or a top lieutenant, leaked information to Israel. Five days ago, the Arabic-language al-Arabiya network reported that Mr. Qaani “is under surveillance and isolation, following the Israeli assassinations of prominent Iranian leaders.”

Iranians are desperately scrambling to plug possible leaks that gave Israel precise intelligence to conduct pinpoint strikes against Hizballah commanders. . . . “I find it hard to believe that Qaani was compromised,” an Iran watcher at Tel Aviv University’s Institute for National Security Studies, Beni Sabti, tells the Sun. Perhaps one or more of [Qaani’s] top aides have been recruited by Israel, he says, adding that “psychological warfare” could well be stoking the rumor mill.

If so, prominent Iranians seem to be exacerbating the internal turmoil by alleging that the country’s security apparatus has been infiltrated.