Posts Tagged ‘demographics’
“Long life is welcome, agreeable, pleasant, and hard to obtain in the world”*…
… maybe, as recent research from Saul Justin Newman explains, even harder than we thought…
The observation of individuals attaining remarkable ages, and their concentration into geographic sub-regions or ‘blue zones’, has generated considerable scientific interest. Proposed drivers of remarkable longevity include high vegetable intake, strong social connections, and genetic markers. Here, we reveal new predictors of remarkable longevity and ‘supercentenarian’ status. In the United States supercentenarian status is predicted by the absence of vital registration. In the UK, Italy, Japan, and France remarkable longevity is instead predicted by regional poverty, old-age poverty, material deprivation, low incomes, high crime rates, a remote region of birth, worse health, and fewer 90+ year old people. In addition, supercentenarian birthdates are concentrated on the first of the month and days divisible by five: patterns indicative of widespread fraud and error. As such, relative poverty and missing vital documents constitute unexpected predictors of centenarian and supercentenarian status, and support a primary role of fraud and error in generating remarkable human age records…
The paper in full: “Supercentenarian and remarkable age records exhibit patterns indicative of clerical errors and pension fraud,” at @biorxivpreprint.
(Image above: source)
* Buddha
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As we long for longevity, we might send healthy birthday greetings to William H. Welch; he was born on this date in 1850. A physician, pathologist, bacteriologist, and medical educator, He was one of the “Big Four” founding professors at the Johns Hopkins Hospital, the first dean of the Johns Hopkins School of Medicine, and the founder of the Johns Hopkins School of Hygiene and Public Health, the first school of public health in the country.
Welch revolutionized American medicine by demanding of its students a rigorous study of physical sciences and an active involvement in clinical duties and laboratory work. His students included Walter Reed, James Carroll and Simon Flexner.
“To overcome a desperate situation, make a complete turn in one sudden burst”*…
Rupert Wingfield-Hayes, the BBC’s Tokyo correspondent, on the riddle of Japan…
This is the world’s third-largest economy. It’s a peaceful, prosperous country with the longest life expectancy in the world, the lowest murder rate, little political conflict, a powerful passport, and the sublime Shinkansen, the world’s best high-speed rail network.
America and Europe once feared the Japanese economic juggernaut much the same way they fear China’s growing economic might today. But the Japan the world expected never arrived. In the late 1980s, Japanese people were richer than Americans. Now they earn less than Britons.
For decades Japan has been struggling with a sluggish economy, held back by a deep resistance to change and a stubborn attachment to the past. Now, its population is both ageing and shrinking.
Japan is stuck…
His diagnosis and his prognosis: “Japan was the future but it’s stuck in the past,” @wingcommander1 in @BBCWorld.
* Japanese proverb
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As we ponder progress, we might recall that it was on this date in 2011 that three reactors at the Fukushima Daiichi Nuclear Power Plant exploded and released radioactivity into the atmosphere a day after the 2011 Tōhoku earthquake and tsunami.
The radiation releases forced the evacuation of 83,000 residents from towns around the plant. The meltdown caused concerns about contamination of food and water supplies, including the 2011 rice harvest, and also the health effects of radiation on workers at the plant. Scientists estimate that the accident released 18 quadrillion becquerels of caesium-137 into the Pacific Ocean, contaminating 150 square miles of the ocean floor.
“When you leave the Island of Pentam and sail about 100 miles, you reach the Island of Java”*…
Indonesia is the 14th largest country by area at 735,358 square miles; Java, the island on which the capital Jakarta is located, is only 58,000 square miles– but Java is home to over half the Indonesian population, over 150 million people. It’s the most populous island in the world, and one of its most populous places. Tomas Pueyo explores the reasons why…
Java’s population density is 1,100 people per square km. This is 3x the density of Japan or the Philippines, 7x that of China, 30x that of the US. It’s nearly the density of Houston, Texas. For an entire island! With volcanoes!
Even weirder: Its neighboring islands in Indonesia are not that densely populated. Compared to its big neighboring islands, it’s 8x more densely populated than Sumatra and 30x more than Borneo.
Why!? What made this island so special?
Read on for a fascinating explanation: “Why is Java So Weird?!” from @tomaspueyo via his wonderful newsletter Uncharted Territories.
* Marco Polo (who was probably, it turns out, actually talking about Sumatra)
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As we dig into development, we might recall that it was on this date in 1497 that Dominican friar and populist agitator Girolamo Savonarola, having convinced the populace of Florence to expel the Medici and recruited the city-state’s youth in a puritanical campaign, presided over “The Bonfire of the Vanities,” the public burning of art works, books, cosmetics, and other items deemed to be vessels of personal aggrandizement. Many art historians, relying on Vasari’s account, believe that Botticelli, a partisan of Savonarola, consigned several of his paintings to the flames and “fell into very great distress.” Others are not so certain. In any case, it seems sure that the fire consumed works by Fra Bartolomeo, Lorenzo di Credi, and many other painters, along with a number of statues and other antiquities.

“Demography is destiny”*…
But what destiny? Strong population growth has fueled economic development in some countries (where the phenomenon of economic growth tends to moderate population growth), and it has exacerbated problems in others. Conversely, a shrinking population can vex the prospects for development and growth. The Economist weighs in with thoughts on the world’s two most populous nations– one shrinking, the other growing…
China has been the world’s most populous country for hundreds of years. In 1750 it had an estimated 225m people, more than a quarter of the world’s total. India, not then a politically unified country, had roughly 200m, which ranked it second. In 2023 it will seize the crown. The UN guesses that India’s population will surpass that of China on April 14th. India’s population on the following day is projected to be 1,425,775,850.
The crown itself has little value, but it is a signal of things that matter. That India does not have a permanent seat on the UN Security Council while China does will come to seem more anomalous. Although China’s economy is nearly six times larger, India’s growing population will help it catch up. India is expected to provide more than a sixth of the increase of the world’s population of working age (15-64) between now and 2050.
China’s population, by contrast, is poised for a steep decline. The number of Chinese of working age peaked a decade ago. By 2050 the country’s median age will be 51, 12 years higher than now. An older China will have to work harder to maintain its political and economic clout. [See also:”For the first time since the 1960s, China’s population is shrinking” and “Here’s why China’s population dropped for the first time in decades.”]
Both countries took draconian measures in the 20th century to limit the growth of their populations. A famine in 1959-61 caused by China’s “great leap forward” was a big factor in persuading the Communist Party of the need to rein in population growth. A decade later China launched a “later, longer, fewer” campaign—later marriages, longer gaps between children and fewer of them. That had a bigger effect than the more famous one-child policy, introduced in 1980, says Tim Dyson, a British demographer. The decline in fertility, from more than six babies per woman in the late 1960s to fewer than three by the late 1970s, was the swiftest in history for any big population, he says.
It paid dividends. China’s economic miracle was in part the result of the rising ratio of working-age adults to children and oldsters from the 1970s to the early 2000s…
India’s attempt to reduce fertility was less successful. It was the first country to introduce family planning on a national scale in the 1950s. Mass-sterilisation campaigns, encouraged by Western donors, grew and were implemented more forcefully during the state of emergency declared by Indira Gandhi, the prime minister, in 1975-77… Though brutal, the campaign was not thorough enough to cause a dramatic drop in India’s birth rate. India’s fertility has dropped, but by less, and more slowly than China’s. With a median age of 28 and a growing working-age population, India now has a chance to reap its own demographic dividend. Its economy recently displaced Britain’s as the world’s fifth-biggest and will rank third by 2029, predicts State Bank of India. But India’s prosperity depends on the productivity of its youthful people, which is not as high as in China. Fewer than half of adult Indians are in the workforce, compared with two-thirds in China. Chinese aged 25 and older have on average 1.5 years more schooling than Indians of the same age.
That will not spare China from suffering the consequences of the demographic slump it engineered. The government ended the one-child policy in 2016 and removed all restrictions on family size in 2021. But birth rates have kept falling. China’s zero-covid policy has made young adults even more reluctant to bear children. The government faces resistance to its plans to raise the average retirement age, which at 54 is among the lowest in the world. The main pension fund may run out of money by 2035. Yet perhaps most painful for China will be the emergence of India as a superpower on its doorstep…
The contrasting demographic dynamics of China and India, and what they might mean: “India will become the world’s most populous country in 2023,” from @TheEconomist.
* attributed to Auguste Comte
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As we ponder population, we might recall that it was on this date in 1829 that the first part of the tragic play Faust by Johann Wolfgang von Goethe premiered. Originally published in 1808, the tale of Dr. Faust’s deal with Memphistopheles is considered by many to be the greatest work of German literature.
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