Posts Tagged ‘prediction’
“Prediction is very difficult, especially if it’s about the future”*…
But, as Dylan Matthews reports, some are better at it than others…
The question before a group made up of some of the best forecasters of world events: What are the odds that China will control at least half of Taiwan’s territory by 2030?
Everyone on the chat gives their answer, and in each case it’s a number. Chinmay Ingalagavi, an economics fellow at Yale, says 8 percent. Nuño Sempere, the 25-year-old Spanish independent researcher and consultant leading our session, agrees. Greg Justice, an MBA student at the University of Chicago, pegs it at 17 percent. Lisa Murillo, who holds a PhD in neuroscience, says 15-20 percent. One member of the group, who asked not to be named in this context because they have family in China who could be targeted by the government there, posits the highest figure: 24 percent.
Sempere asks me for my number. Based on a quick analysis of past military clashes between the countries, I came up with 5 percent. That might not seem too far away from the others, but it feels embarrassingly low in this context. Why am I so out of step?
This is a meeting of Samotsvety. The name comes from a 50-year-old Soviet rock band — more on that later — but the modern Samotsvety specializes in predicting the future. And they are very, very good at it. At Infer, a major forecasting platform operated by Rand, the four most accurate forecasters in the site’s history are all members of Samotsvety, and there is a wide gap between them and fifth place. In fact, the gap between them and fifth place is bigger than between fifth and 10th places. They’re waaaaay out ahead.
While Samotsvety members converse on Slack regularly, the Saturday meetings are the heart of the group, and I was sitting in to get a sense of why, exactly, the group was so good. What were these folks doing differently that made them able to see the future when the rest of us can’t?…
The “secrets” of superforecasters: “How a ragtag band of internet friends became the best at forecasting world events,” from @dylanmatt in @voxdotcom.
(Image above: source)
* Niels Bohr
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As we contemplate change, we might recall that it was on this date in 1781 that William Herschel discovered Uranus. The first planet to be discovered with the aid of a telescope, he initially thought that it was a comet.
And on this date in 1930, Clyde Tombaugh discovered Pluto. Originally designated the ninth planet, it has been “demoted” to minor (or dwarf) planet status.
“All history must be mobilized if one would understand the present”*…
… especially, one might conclude, when it comes to understanding civilizational challenges like climate change. But as Deborah Coen explains, that’s not so straightforward…
Never before in human history has Earth experienced a change in climate as rapid as the shift we’re living through today. Can history hold clues to an upheaval without precedent? That depends on how we frame the question. Scientists tend to have two questions. They want to know how past societies have been impacted by less dramatic episodes of climate variability, and they want to know what has motivated societies to switch from one fuel source to another. Over the past 20 years, historians’ answers have influenced the reports of major international scientific bodies, including the Intergovernmental Panel on Climate Change and the Anthropocene Working Group of the International Union of Geological Sciences. And yet, following the lead of scientists has constrained how climate historians think about drivers of change. Scientists like to think that change comes from bold new theories and technological breakthroughs. The chemist Paul Crutzen, for instance, popularized the term “Anthropocene” in part to underscore his faith that the solution to the environmental crisis would come from human ingenuity. Today, scientists seek funding for massive projects, from shoring up a melting glacier to constructing climate research centers on the scale of the Manhattan Project. In this spirit, climate historians have tended to tell dramatic stories in which societies fail or succeed according to their ability to impose top-down change. What these accounts miss are the humble drivers of change that unfold at the scale of everyday life and grow bottom-up rather than top-down. Indeed, a third question is emerging for historians today: what small-scale mechanisms might trigger a transition to a more equitable and sustainable future?…
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The appeal of both historical frameworks—collapse and resilience—lies ultimately in their framing of human societies as complex systems that can be modeled much like other components of the “Earth system.” In this respect, historians have dutifully answered the question posed by scientists, and they have done so in scientists’ terms. They have thereby made it possible to integrate the human factor into the models that scientists use to study and predict global change. As one 2018 paper put it, “the idea of building a forecasting engine for societal breakdown is too tempting to resist.”
Such “integrated assessment models,” which incorporate demographic and economic trajectories into forecasts of environmental change, gained currency in the 1990s with the rise of international diplomacy around global warming. The models raised the second thorny question mentioned above: How do energy transitions unfold? What motivates a society to replace one fuel source with another?
Again, the framing of the question conditioned the answers. Implicit is the assumption that human history has inevitably marched towards increasingly energy-dense fuel sources. With the onset of industrialization, animal power, wind power, and waterpower were replaced by coal and peat, which in turn gave way to gas and oil. The task of the historian became a narrow search for the factors that induced a fuel switch in the past—and which, by extension, might motivate a transition to “clean” energy in the future…
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Morris and McNeill [Ian Morris’s 2015 Foragers, Farmers, and Fossil Fuels: How Human Values Evolve and J. R. McNeill’s Something New Under the Sun: An Environmental History of the Twentieth-Century World] gave the scientists what they were looking for: a universal, quantitative version of human history. And yet, these historians obscured what I would call the most important feature of history: contingency. The problem stems, first, from their reliance on historical sources—such as bureaucratic records and monumental remains—that tell history from the point of view of states and their elites. Secondly, these histories constrain their field of view by adopting the language of science and policy. The very concept of “sustainability,” much like its partner, “development,” implies that the goal is to continue along the path that got us here. Reading Morris and McNeill, it is hard even to imagine what an alternative would look like—let alone how we could bring it about.
Fortunately, other historians have shown us that the course of industrialization was by no means inevitable. Energy transitions did not go unchallenged. Recent histories of coal mining (Victor Seow, Thomas G. Andrews) and fracking (Conevery Valencius) reveal that ordinary people objected to the extraction of these fuels due to the risks they posed to local communities. Dismissing past critics as shortsighted or irrational misses the point: history could have gone differently…
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David Graeber and David Wengrow build on Scott’s insights [James Scott’s Against the Grain: A Deep History of the Earliest States] in their monumental synthesis, The Dawn of Everything: A New History of Humanity (2021). They argue that what has looked to archaeologists like the remains of collapsed early states might be evidence of a conscious decision to abandon the experiment. In sharp contrast to the inevitability of the evolutionist narrative, Graeber and Wengrow stress that humans have repeatedly exercised their freedom to opt out of hierarchical societies and live otherwise. Their message: We might do the same. Our values need not be dictated by the economic choices made by our forebears…
… Morris’s critical review of The Dawn of Everything claims that its attention to exceptions cannot disprove his model. Well then, what can? For a scholar so concerned with scientific credibility, Morris is remarkably unconcerned that his theory fails to pass Popper’s falsifiability test. He closes his review by chiding the authors for their utopianism: “It would be uplifting to think that whatever we dislike about our own age only persists because we have hitherto lacked the imagination and courage to put something better in its place.” One has to wonder: who is this “we” who lacks imagination and courage? Clearly, Morris has missed their point. “Something better” has been put in place again and again, flourishing at smaller or larger scales throughout human history.
Environmental historians Ian Jared Miller and Paul Warde diagnose the problem this way: “Purely quantitative or global approaches to energy” tend to overlook the experiences of those who are not making the decisions but whose lives are affected by them. This oversight is a result of methods that make it “difficult to grasp everyday experience as a prompt to action and an agent of change.” Otherwise put, historians miss a great deal when they rely on the quantitative tools of scientists.
History will never provide a crystal ball, and that’s not what we should ask of it. Nor should we be limited by theories of historical change that consider “events” only as unusual occurrences that were recognized as such by contemporaries. Change can also be the result of an accumulation of small disruptions that goes unnoticed by mainstream observers. Climate historians know this well, since the variability they study was often unremarked upon by those living through it. And yet, climate historians have taken little interest in processes of change that run bottom-up rather than top-down.
This is why climate historians have much to learn from historians of disenfranchised populations…
These histories show that human feelings and values are not dictated by the economic system in which we happen to find ourselves. On the contrary, emotions are unruly and uncontainable; they cannot be quantified and will never serve as input for Earth system models. They can, however, point towards alternative ways of living and relating. Where those alternatives lead, no one can know. But the very fact that human relations are emergent and unpredictable is grounds for hope.
Eminently worth reading in full: “What’s Next for Histories of Climate Change,” from @LAReviewofBooks.
* Fernand Braudel
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As we include, we might send grateful birthday greetings to a historian with a different focus, but that same urge to inclusion– Alan Lomax; he was born on this date in 1915. A historian, folklorist, musician, and ethnomusicologist, he collected, archived, and distributed recordings of vernacular American music that would surely have otherwise been lost.
The many, many artists Lomax is credited with discovering and bringing to a wider audience include blues guitarist Robert Johnson, protest singer Woody Guthrie, folk artist Pete Seeger, country musician Burl Ives, Scottish Gaelic singer Flora MacNeil, and country blues singers Lead Belly and Muddy Waters. Lomax recorded thousands of songs and interviews for the Archive of American Folk Song (of which he was the director) at the Library of Congress; and he produced recordings, concerts, and radio shows in the US and in England, which played an important role in preserving folk music traditions in both countries and helped start both the American and British folk revivals of the 1940s, 1950s, and early 1960s.

“It is difficult to predict, especially the future”*…
An amusing attempt to take the long view…
W. Cade Gall’s delightful “Future Dictates of Fashion” — published in the June 1893 issue of The Strand magazine — is built on the premise that a book from a hundred years in the future (published in 1993) called The Past Dictates of Fashion has been inexplicably found in a library. The piece proceeds to divulge this mysterious book’s contents — namely, a look back at the last century of fashion, which, of course, for the reader in 1893, would be looking forward across the next hundred years. In this imagined future, fashion has become a much respected science (studied in University from the 1950s onwards) and is seen to be “governed by immutable laws”.
The designs themselves have a somewhat unaccountable leaning toward the medieval, or as John Ptak astutely notes, “a weird alien/Buck Rogers/Dr. Seuss/Wizard of Oz quality”. If indeed this was a genuine attempt by the author Gall to imagine what the future of fashion might look like, it’s fascinating to see how far off the mark he was (excluding perhaps the 60s and 70s), proving yet again how difficult it is to predict future aesthetics. It is also fascinating to see how little Gall imagines clothes changing across the decades (e.g. 1970 doesn’t seem so different to 1920) and to see which aspects of his present he was unable to see beyond (e.g. the long length of women’s skirts and the seemingly ubiquitous frill). As is often the case when we come into contact with historic attempts to predict a future which for us is now past, it is as if glimpsing into another possible world, a parallel universe that could have been (or which, perhaps, did indeed play out “somewhere”)…
More at: “Sartorial Foresight: Future Dictates of Fashion (1893)” in @PublicDomainRev.
Browse the original on the Internet Archive.
* Niels Bohr (after a Danish proverb)
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As we ponder the problem of prognostication, we might recall that it was on this date in 1934 that producer Samuel Goldwyn bought the film rights to L. Frank Baum’s book, The Wonderful Wizard of Oz, which had been a hit since its publication in 1900 but had until then been considered both inappropriate (as it was a “children’s book”) and too hard to film. Goldwyn was banking on the drawing power of his child star Shirley Temple, the original choice for Dorothy; but (as everyone knows) the role went to Judy Garland who won a special “Best Juvenile Performer” Oscar and made the award-winning song, “Somewhere Over the Rainbow” a huge hit.
The film was only a modest box-office success on release… but has of course become a beloved classic.
“Planchet, my friend, said d’Artagnan, you reason like a cheese.”*…
An age-old fortune-telling practice uses cheese to predict everything from one’s future spouse to one’s next career move…
A few months ago, I told a chef in Vancouver that he would soon experience major growth in his career and take on much more responsibility, and that the letter B would somehow be involved. How did I know? Some cheese told me. He’d been standing next to a particularly veiny piece of blue cheese, and asked me to read his fortune from it. Predicting the future using cheese is something I do as a side business, and from what I can tell, there aren’t very many of us doing this anymore.
This isn’t some cheesy divination method I just made up. Tyromancy, or the practice of telling fortunes with cheese, was first officially mentioned in the second century in the writings of Greek historian and professional diviner Artemidorus of Daldis (also known as Artimedorus of Ephesus) on dream interpretation. He apparently didn’t think cheese was a great invention: he noted at the time that the food signifies “trickery and ambushes” and that tyromancers sullied the work of true diviners like sacrificers and liver examiners. Tyromancers, he argued, were more in league with those who practiced evil types of divination, including dice diviners and necromancers. It feels like a bit of a leap to go from cheese to death, but Artimedorus had some opinions, I guess.
Tyromancy reached peak popularity in England during the Middle Ages and early modern period (1500–1800). The country was primarily an agrarian society at the time, with most families having some sort of livestock that produced milk for cheese—and people loved to dabble in the paranormal. Christianity was ingrained in most people, so looking for insight into one’s predestined future, or trying to find a way to gain control over it, led to widespread interest in divination. One used whatever tools were on hand to achieve that, and at that particular point in history, that meant cheese. It was a much more convenient choice than previous divination methods, which included dumping a ladle of molten lead into a bucket of water to see what shapes it made.
People used cheese to divine all sorts of things: who committed a crime, whether the year would bring a fruitful harvest, and how a child’s life would turn out. Those who practiced it generally used farmer’s cheese, though some tried it with runnier options, like fondue.
Back then, a typical use for tyromancy was to determine who you would marry. You’d simply carve the names of all potential suitors into some pieces of cheese, then wait to see which one molded first. And there it was—your life partner! People also analyzed the number and size of holes in a block of cheese, the patterns of the mold and veins, and the shapes that curds made as they coagulated. The process is similar to that of reading tea leaves or coffee grounds—you tell a story through the shapes you see. A heart shape, for example, signifies love and happiness, while an odd number of holes predicts that something negative might happen…
“The Un-Brie-Lievable History of Tyromancy,” from @JenniferBillock in @SAVEURMAG.
* Alexandre Dumas
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As we foretell with fromage, we might send distributed birthday greetings to Oveta Culp Hobby; she was born on this date in 1905. A journalist, (self-described) businesswoman, and government official, she is best remembered as the first Secretary of Health, Education, and Welfare (a position she took in 1953 on appointment by Dwight Eisenhower). While her most notable achievement in that role was surely the approval and mass roll-out of the polio vaccine, she also worked with her counterpart in the Department of Agriculture to establish the program under which excess cheese production was bought by the government and distributed to public schools for use in their lunch programs.

“Hurricane season brings a humbling reminder that, despite our technologies, most of nature remains unpredictable”*…
Still, as Katarina Zimmer explains, an emerging science can help us improve our forecasts…
… contemporary simulations suggest the Great Colonial Hurricane was a Category 3.5 storm, probably the strongest in recorded eastern New England history. (For reference, Sandy, which killed nearly 150 people and caused some $65 billion in damage in the United States, was technically no longer even a hurricane when it made landfall in the New York metro area in 2012.)
Scientists know about the Great Colonial Hurricane’s impact not only from written reports but curiously, also from hidden, physical impressions the long-ago storm left on the landscape.
At the bottom of a pond, Jeffrey Donnelly, a hurricane scientist at the Woods Hole Oceanographic Institution, and his colleagues found subtle, buried evidence of the storm that almost felled the Mather line. The researchers were collecting sediment cores from a lakebed on Cape Cod. The spot, known as Salt Pond, lies about a third of a mile from the ocean and has long been a place of mud. But in their core samples, they found a pinky finger-thick layer of pure ocean sand in layers that dated back to roughly 1635. The only thing that could have pulled that much beach material over the sand barrier and that far inland was a truly massive storm.
The cores revealed other clues, too. Although written accounts suggest the 1635 tempest was the strongest of its time, the exhumed samples showed it wasn’t the only intense storm in the area. Donnelly found evidence for 10 major storms in the area between 1400 and 1675—a surprising toll, given that major hurricanes are virtually unheard of this far north today. The fact that hurricanes were much more frequent in the past begs the question of why, and whether these levels of storm activity could someday return.
Which is why researchers like Donnelly are traipsing along coastlines and digging in the muck. They hope their relatively new branch of science, paleotempestology (the study of old storms), can use these buried traces of long-gone winds to augur ancient patterns. Patterns that might also help us predict the weather that lies ahead…
Paleotempestology promises to uncover patterns of historical hurricanes—to better predict destructive weather of the future. More at: “The Secret Messages in Ancient Storms,” (or here) from @katarinazimmer in @NautilusMag.
* Diane Ackerman
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As we muse on the meteorological, we might send exploratory birthday greetings to Bernard Brunhes; he was born on this date in 1867. A geophysicist, he is known for his pioneering work in paleomagnetism, in particular, his 1906 discovery of geomagnetic reversal [see here]. The current period of normal polarity, Brunhes Chron, and the Brunhes–Matuyama reversal are named for him.
Brunes made his discovery in a way that presaged the work of paleotempestologists: he found volcanic lava and clay samples that recorded the Earth’s inversion of its magnetic field.









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