Overly Sarcastic Productions
Published 1 Dec 2015Blue’s back with more sweet, sweet prehistory! Today, Bruce explores the wonders of life.
April 20, 2020
Prehistory Summarized: Early Life
March 23, 2020
February 22, 2020
January 25, 2020
QotD: The post-oil-crisis evolution of modern cars
Man I remember back in 1982, we all thought we’d be driving nothing but 3-cylinder diesels by the turn of the millennium. If you went back and told some gearhead in my high school class that in 2017 Dodge would be selling a “street legal” 10-second Hemi Challenger, he’d think you were talking about the 0-60 time of a 4-cyl car.
The computer changed everything. Not only in engine tuning and performance, but in design and modeling.
I had an example of a classic late Dark Ages car, an ’84 Trans Am with the LG4 305c.i. Rochester Quadrabog motor. A hunnert and fifty horsepower and nearly every engine function powered by enough dry-rotting vacuum tubing to reach to the moon and back…
Only a few years later and exotic computer-designed and controlled long-runner port fuel injection systems were common on domestic performance cars and HP numbers were on the right side of 200 for the first time in a decade.
It was coming out of an awful time. Like a friend wrote: When he went into seminary you could buy a Mustang with a nearly 400bhp engine option. When he left seminary, the Mustang was a Pinto.
Being a car enthusiast in America in the latter half of the 70s/first half of the ’80s was like being a dirt farmer in Fifth Century Britain, marveling at the weed-grown roads and disused aqueducts left by a race of giants and building your pig shed with stones looted from a burned library.
Tamara Keel, “Cars of the future from the past…”, View From The Porch, 2017-12-26.
December 8, 2019
Political evolution in action – “The predator approaching is a Donald Trumptruck”
At Essays in Idleness, David Warren explores the notion of a “no-brainer”:
The definition of a “no-brainer,” is a decision that requires no brains. Gentle reader will imagine what happens when decisions are made in that way. Or maybe he can’t, in which case I will imagine it for him. The results will be unforeseeable, if prompt; except by those using their brains to foresee them.
This is a problem with the zombie, or collective method of governing a country, or governing anything. It relies on luck. Sometimes, very rarely, it will get lucky. But the luck never lasts.
Perhaps one might observe there is no such thing as a “no-brainer,” even among fish swimming in a school. It is physiologically impossible, even for a human, to act without engaging his grey matter.
Let us take a decision that might be made by either — say, fish in the ocean, or a school of liberal-progressives. It is the principle, “Whenever encountering an obstacle, turn Left.” (Or the alternative no-brainer is possible: “Turn Right.”) No turning signal is necessary, for the rest of the school has been programmed the same way. Still, they must see the obstacle, and turn. This involves a dim intellectual process. It need not be applauded, however.
Let us posit our obstacle is a whale; and that we are its diet. It is large, so we can see it from a distance, or were equipped to detect it in some other way. Instinct kicks in, and we turn. “Left, left!” goes the collective signal. The whale’s advantage is that, with even less thought, he can make his own adjustment of course. It’s easy, because experience has taught him which way we will turn. We do so, and in a moment, we are all gobbled down.
The life of a sprat may be hard, perhaps; but it is mercifully brief.
Or let’s say we are Democrats, in caucus. The predator approaching is a Donald Trumptruck. We can see it coming a mile away; there is no subtlety at all in the creature. And yet we always get run over.
November 7, 2019
QotD: Evolved sexual differences
Because male sexuality is all about the visuals, men’s magazines are filled with pictures of naked women with freakishly large breasts and women’s magazines are filled with pictures of beauty products and ass-cantilevering $2,000 stilettos. Men evolved to go for signs of reproductively hot prospects — an hourglass figure, youth, clear skin, symmetrical faces and bodies, and long shiny hair: all indicators that a woman is a healthy, fertile candidate to pass on a man’s genes.
Women co-evolved to try to make themselves look reproductively hot, though that’s not how we think of it. […] Because men are turned on by disembodied photos of boobs, butts, and coochies, they’re quick to pull down their pants, click their cameraphone, and text some woman they just met a close-up of their zipperwurst. Really bad idea.
Men who’ve done this should pick up a Harlequin romance, which is basically porn for women (from the ravishing by some hot gazillionaire to the final commitment-gasm).
See any photo spreads of male crotch shots tucked in there anywhere, boys?
This is not an error of omission. Women aren’t fantasizing about seeing your willy; they’re fantasizing that somebody in the royal family will pluck them out of suburbia and marry them in Westminster Abbey.
Amy Alkon, Good Manners for Nice People Who Sometimes Say F*ck, 2014.
October 1, 2019
Charles Darwin – The Voyage of the Beagle – Extra History
Extra Credits
Published 29 Sep 2019The 1830s were an exciting time for science. All throughout Europe, there was a great movement to explore, map, and classify the world. And it was this expanding world that young Charles Darwin graduated into … albeit with the wrong degree. Because although he would one day be known as “the Father of Modern Biology,” Darwin’s father was set on his son following in his footsteps — as a doctor.
July 25, 2019
QotD: Ice ages as evolutionary drivers
The widths of the Pacific continued unaltered for millions of years. Temperatures scarcely dropped there in the Ice Ages. Generation after generation of Pacific birds were able to evolve in an almost completely stable world. Birds which somehow or other had arrived on remote islands branched into different species. In the Atlantic, there was hardly time to do that between the Ice Ages […] in the Atlantic endemics — species confined to particular places — only rarely evolved.
What you see when the puffins arrive in the spring is a product of this history. The Atlantic, for the past 2.74 million years has been a place of coming and going, unsettled at the deepest of levels, a system always ready to flip from relatively beneficent to deeply unaccommodating. Life does not have the time here to develop the mass of differentiated variety it has within the security of the Pacific.
[…]
The result is that now in the North Atlantic there is relatively little local variation. Species have evolved to cope with the variability and have wide ranges across the latitudes. The Pacific is a mosaic of local land-based varieties; the Atlantic the exclusive realm of the ocean travellers, birds which have distance embedded in their way of being.
Adam Nicholson, The Seabird’s Cry: The Lives and Loves of Puffins, Gannets and Other Ocean Voyagers, 2017.
July 21, 2019
Debunking the “common wisdom” about the “Scopes Monkey Trial”
Mark Pulliam explains what really caused the “Scopes Monkey Trial” and what was at stake … which doesn’t match up well at all against what little most people will remember about it today:
We are again in another contentious period in America where battles over our culture and how we should live together are acrimonious. But there have been many points in our history that indicate we are only re-engaging a form of politics that is quintessentially American. One prominent past episode that occurred in Dayton, Tennessee during the summer of 1925 — the so-called “Scopes Monkey Trial” — has captured the American imagination like few legal proceedings ever have. Noted trial lawyer Clarence Darrow was part of the large legal team representing a 24-year-old substitute high school teacher, John Thomas Scopes, who was accused of violating the state’s Butler Act, which prohibited the teaching of evolution in a state-funded school. The celebrity co-prosecutor was William Jennings Bryan, the three-time Democratic presidential nominee, former Nebraska congressman, and Secretary of State to President Woodrow Wilson. Both Darrow and Bryan were prominent Progressive figures. Bryan, a left-wing evangelical and a fiery orator, is best known for his “Cross of Gold” speech at the 1896 Democratic National Convention.
The trial provided an opportunity for Darrow, whose reputation had been sullied by questionable tactics employed in the defense of radical labor leaders, to vindicate himself before a national audience. Chicago’s WGN radio station broadcast the trial nationwide and hundreds of reporters, some of them from overseas, covered the case. Geoffrey Cowan, author of the exhaustively-researched book The People v. Clarence Darrow, notes that Darrow achieved national notoriety, “won the support of Eastern sophisticates,” and “found new acceptance” as a result of the widely-publicized trial, especially his alleged humiliation of Darrow’s “old hero,” Bryan. This canard, which formed the dramatic crux of the 1960 movie Inherit the Wind, a highly-fictionalized depiction of the trial adapted from the 1955 play written by Jerome Lawrence and Robert E. Lee, is just one aspect of the popular mythology that surrounds the case.
Almost all of the “conventional wisdom” concerning the Scopes trial is false. Contrary to the impression created by Inherit the Wind and other popular accounts (including the sensational reportage of H. L. Mencken of The Baltimore Sun, one of the leading journalists of his day), the trial was not a fundamentalist inquisition, but an ill-conceived publicity stunt by Dayton businessmen who were trying to attract tourists to the small town — to put Dayton on the map. To generate a test case challenging the statute, the American Civil Liberties Union had offered to defend any teacher charged with violating the Butler Act, gratis. Dayton businessmen recruited Scopes to agree to serve as the defendant, even though he was unsure he had actually taught evolution. Nonetheless, Scopes volunteered to be charged. The trial — for a misdemeanor offense — was staged. Celebrity lawyers were solicited to participate for the sole purpose of increasing public interest in the case. The Baltimore Sun paid part of the defense’s expenses because it knew that the spectacle would sell newspapers, and it did. A lot of them.
I think it would be fair to say that H.L. Mencken had a passionate dislike for William Jennings Bryan, even after Bryan’s death a few days later:
It is the national custom to sentimentalize the dead, as it is to sentimentalize men about to be hanged. Perhaps I fall into that weakness here. The Bryan I shall remember is the Bryan of his last weeks on earth — broken, furious, and infinitely pathetic. It was impossible to meet his hatred with hatred to match it. He was winning a battle that would make him forever infamous wherever enlightened men remembered it and him. Even his old enemy, Darrow, was gentle with him at the end. That cross-examination might have been ten times as devastating. It was plain to everyone that the old Berserker Bryan was gone — that all that remained of him was a pair of glaring and horrible eyes.
But what of his life? Did he accomplish any useful thing? Was he, in his day, of any dignity as a man, and of any value to his fellow-men? I doubt it. Bryan, at his best, was simply a magnificent job-seeker. The issues that he bawled about usually meant nothing to him. He was ready to abandon them whenever he could make votes by doing so, and to take up new ones at a moment’s notice. For years he evaded Prohibition as dangerous; then he embraced it as profitable. At the Democratic National Convention last year he was on both sides, and distrusted by both. In his last great battle there was only a baleful and ridiculous malignancy. If he was pathetic, he was also disgusting.
Bryan was a vulgar and common man, a cad undiluted. He was ignorant, bigoted, self-seeking, blatant and dishonest. His career brought him into contact with the first men of his time; he preferred the company of rustic ignoramuses. It was hard to believe, watching him at Dayton, that he had traveled, that he had been received in civilized societies, that he had been a high officer of state. He seemed only a poor clod like those around him, deluded by a childish theology, full of an almost pathological hatred of all learning, all human dignity, all beauty, all fine and noble things. He was a peasant come home to the dung-pile. Imagine a gentleman, and you have imagined everything that he was not.
H/T to “WarEagle82” for the link.
July 20, 2019
QotD: Spices
Why do we use spices in our foods? In thinking about this question keep in mind that (1) other animals don’t spice their foods, (2) most spices contribute little or no nutrition to our diets, and (3) the active ingredients in many spices are actually aversive chemicals, which evolved to keep insects, fungi, bacteria, mammals and other unwanted critters away from the plants that produce them.
Several lines of evidence indicate that spicing may represent a class of cultural adaptations to the problem of food-borne pathogens. Many spices are antimicrobials that can kill pathogens in foods. Globally, common spices are onions, pepper, garlic, cilantro, chili peppers (capsicum) and bay leaves. Here’s the idea: the use of many spices represents a cultural adaptation to the problem of pathogens in food, especially in meat. This challenge would have been most important before refrigerators came on the scene. To examine this, two biologists, Jennifer Billing and Paul Sherman, collected 4578 recipes from traditional cookbooks from populations around the world. They found three distinct patterns.
1. Spices are, in fact, antimicrobial. The most common spices in the world are also the most effective against bacteria. Some spices are also fungicides. Combinations of spices have synergistic effects, which may explain why ingredients like “chili power” (a mix of red pepper, onion, paprika, garlic, cumin and oregano) are so important. And, ingredients like lemon and lime, which are not on their own potent anti-microbials, appear to catalyze the bacteria killing effects of other spices.
2. People in hotter climates use more spices, and more of the most effective bacteria killers. In India and Indonesia, for example, most recipes used many anti-microbial spices, including onions, garlic, capsicum and coriander. Meanwhile, in Norway, recipes use some black pepper and occasionally a bit of parsley or lemon, but that’s about it.
3. Recipes appear to use spices in ways that increase their effectiveness. Some spices, like onions and garlic, whose killing power is resistant to heating, are deployed in the cooking process. Other spices like cilantro, whose antimicrobial properties might be damaged by heating, are added fresh in recipes.
Thus, many recipes and preferences appear to be cultural adaptations adapted to local environments that operate in subtle and nuanced ways not understood by those of us who love spicy foods. Billing and Sherman speculate that these evolved culturally, as healthier, more fertile and more successful families were preferentially imitated by less successful ones. This is quite plausible given what we know about our species’ evolved psychology for cultural learning, including specifically cultural learning about foods and plants.
Among spices, chili peppers are an ideal case. Chili peppers were the primary spice of New World cuisines, prior to the arrival of Europeans, and are now routinely consumed by about a quarter of all adults, globally. Chili peppers have evolved chemical defenses, based on capsaicin, that make them aversive to mammals and rodents but desirable to birds. In mammals, capsicum directly activates a pain channel (TrpV1), which creates a burning sensation in response to various specific stimuli, including acid, high temperatures and allyl isothiocyanate (which is found in mustard or wasabi). These chemical weapons aid chili pepper plants in their survival and reproduction, as birds provide a better dispersal system for the plants’ seeds than other options (like mammals). Consequently, chilies are innately aversive to non-human primates, babies and many human adults. Capsaicin is so innately aversive that nursing mothers are advised to avoid chili peppers, lest their infants reject their breast (milk), and some societies even put capsicum on mom’s breasts to initiate weaning. Yet, adults who live in hot climates regularly incorporate chilies into their recipes. And, those who grow up among people who enjoy eating chili peppers not only eat chilies but love eating them. How do we come to like the experience of burning and sweating — the activation of pain channel TrpV1?
Research by psychologist Paul Rozin shows that people come to enjoy the experience of eating chili peppers mostly by re-interpreting the pain signals caused by capsicum as pleasure or excitement. Based on work in the highlands of Mexico, children acquire this gradually without being pressured or compelled. They want to learn to like chili peppers, to be like those they admire. This fits with what we’ve already seen: children readily acquire food preferences from older peers. In Chapter 14, we further examine how cultural learning can alter our bodies’ physiological response to pain, and specifically to electric shocks. The bottom line is that culture can overpower our innate mammalian aversions, when necessary and without us knowing it.
Joseph Henrich, The Secret of Our Success: How Culture Is Driving Human Evolution, Domesticating Our Species, and Making Us Smarter, 2015.
May 6, 2019
Tree of Life Explorer
A tweet from Simon Kuestenmacher (@simongerman600) included this graphic, which is a static version of the full Tree of Life Explorer (which is well worth a visit):
March 11, 2019
Misery was
exurb1a
Published on 10 Mar 2019Goodbye to closed-source human history. Maybe.
The Fifth Science Paperback ► https://tinyurl.com/y5zj33s5 (you may need to change your region accordingly: .co.uk, etc)Sample story from the book (The Lantern) ► https://youtu.be/um6cGuJ4mNE
The Fifth Science Treasure Hunt:
Minimal clues will be provided in the videos below. If you happen to live in one of these countries, then all the very best of luck finding the books. They’re not hidden elaborately, just out of sight of passers-by. If you need to do any heavy lifting, trespassing, or scale walls, you’re definitely in the wrong place. Hint: strange fonts and geography.
England ► https://youtu.be/HQDeKPNUF4U
Germany ► https://youtu.be/qfKd134AETo
Bulgaria ► https://youtu.be/XLLaa7G97B8
I also make horrendous music ► https://soundcloud.com/exurbia-1
Help me to do this full-time, if you’re deranged enough ► https://www.patreon.com/exurb1r?ty=h
The rest of my books ► https://tinyurl.com/ycnl5bo3Incidentally:
So, one of the many issues I didn’t get around to yelling at you about was the line between ‘genetic disorder’ and an individual’s unique features. I’ve mentioned before I’m more or less blind in one eye and this is almost definitely a result of a mutation in my family line. And you know, given the option, I’m not sure if I’d have it removed. Or, I’d need to give it a very, very long think.
There are plenty of lovely and bizarre anomalies specific to individuals, and it’s not for me to say – or even speculate really – where the line should be drawn when it comes to one day potentially making alterations to our descendants. I’m not a public educator, philosopher, scientist, or policy maker. Just an idiot with a USB microphone. I’m not the person to talk about this stuff. So I hope you’ll forgive my glossing over of it.
March 9, 2019
QotD: “Scientific” urban planning versus messy, unscientific, evolved town growth
Natural organically-evolved cities tend to be densely-packed mixtures of dark alleys, tiny shops, and overcrowded streets. Modern scientific rationalists came up with a better idea: an evenly-spaced rectangular grid of identical giant Brutalist apartment buildings separated by wide boulevards, with everything separated into carefully-zoned districts. Yet for some reason, whenever these new rational cities were built, people hated them and did everything they could to move out into more organic suburbs. And again, for some reason the urban planners got promoted, became famous, and spread their destructive techniques around the world.
Ye olde organically-evolved peasant villages tended to be complicated confusions of everybody trying to raise fifty different crops at the same time on awkwardly shaped cramped parcels of land. Modern scientific rationalists came up with a better idea: giant collective mechanized farms growing purpose-bred high-yield crops and arranged in (say it with me) evenly-spaced rectangular grids. Yet for some reason, these giant collective farms had lower yields per acre than the old traditional methods, and wherever they arose famine and mass starvation followed. And again, for some reason governments continued to push the more “modern” methods, whether it was socialist collectives in the USSR, big agricultural corporations in the US, or sprawling banana plantations in the Third World.
Traditional lifestyles of many East African natives were nomadic, involving slash-and-burn agriculture in complicated jungle terrain according to a bewildering variety of ad-hoc rules. Modern scientific rationalists in African governments (both colonial and independent) came up with a better idea – resettlment of the natives into villages, where they could have modern amenities like schools, wells, electricity, and evenly-spaced rectangular grids. Yet for some reason, these villages kept failing: their crops died, their economies collapsed, and their native inhabitants disappeared back into the jungle. And again, for some reason the African governments kept trying to bring the natives back and make them stay, even if they had to blur the lines between villages and concentration camps to make it work.
Why did all of these schemes fail? And more importantly, why were they celebrated, rewarded, and continued, even when the fact of their failure became too obvious to ignore? Scott gives a two part answer.
The first part of the story is High Modernism, an aesthetic taste masquerading as a scientific philosophy. The High Modernists claimed to be about figuring out the most efficient and high-tech way of doing things, but most of them knew little relevant math or science and were basically just LARPing being rational by placing things in evenly-spaced rectangular grids.
But the High Modernists were pawns in service of a deeper motive: the centralized state wanted the world to be “legible”, ie arranged in a way that made it easy to monitor and control. An intact forest might be more productive than an evenly-spaced rectangular grid of Norway spruce, but it was harder to legislate rules for, or assess taxes on.
The state promoted the High Modernists’ platitudes about The Greater Good as cover, in order to implement the totalitarian schemes they wanted to implement anyway. The resulting experiments were usually failures by the humanitarian goals of the Modernists, but resounding successes by the command-and-control goals of the state. And so we gradually transitioned from systems that were messy but full of fine-tuned hidden order, to ones that were barely-functional but really easy to tax.
Scott Alexander, “Book Review: Seeing Like a State”, Slate Star Codex, 2017-03-16.
March 6, 2019
The “grandmother hypothesis”
Jonathan Lambert on the theory for why, almost alone among species, human females live on well past their reproductive years:
Killer whales, Japanese aphids and Homo sapiens — they’re among the few organisms whose females live on long past the age of reproduction.
Since the name of the evolutionary game is survival and reproduction, the phenomenon begs explanation — why live longer than you can reproduce? In the 1960s, researchers came up with the “grandmother hypothesis” to explain the human side of things. The hypothesis is that the help of grandmothers enables mothers to have more children. So women who had the genetic makeup for longer living would ultimately have more grandchildren carrying their longevity genes. (Sorry, grandfathers, you’re not included in this picture.)
Two studies published Thursday in Current Biology take another look at this hypothesis and add new insights into the role grandmothers play.
The first hard evidence for the grandmother hypothesis was gathered by Kristen Hawkes, an anthropologist at the University of Utah who was studying the Hadza people, a group of hunter-gatherers in northern Tanzania. Hawkes was struck by “how productive these old ladies were” at foraging for food, and she later documented how their help allowed mothers to have more children.
If our long post-reproductive lives evolved because of grandmothers, we should be able to find fingerprints of the benefits of grandmothering in many cultures. But the circumstances of modern life differ drastically from those we faced at the beginning of our evolutionary story.
The studies in Current Biology turned to the detailed records of two preindustrial populations, one in what is now Quebec and the other in Finland. The researchers mined these rich databases to quantify the reproductive boost that grandmothers provide and to help us better understand the limits of their help.
H/T to Claire Lehmann for the link.
QotD: Teaching evolution in the “Bible Belt”
I teach college in a small city in Arkansas, deep in the American Bible Belt. I am a historian of Africa and in my department that means that I also teach a world history survey. I always start with the expansion of modern humans out of Africa and their encounter with other types of humans: Neanderthals, Homo erectus, Denesovians and what seems like an ever-growing list of newly discovered human-like creatures. It’s less the case now, but when I started twenty years ago this part of the course was initially met with polite but firm resistance, which gradually gave way to a sort of furtive curiosity. I eventually realized that even my cleverest students knew very little about human evolution except that it was false and that they were supposed to reject it. They came to the university having been taught that evolution was part of a larger attack on their faith and values, but they had never really been exposed to anything but a sort of parody version of it. A small number of them accepted evolutionary theory, but being a Darwinian in rural Arkansas was usually more about youthful rebellion and non-conformity than it was about informed, rational consideration of evidence.
Once we got past the denunciation or acceptance of evolutionary theory as a form of tribal affiliation, I found students to be deeply curious about it. It was such a taboo subject that their high school teachers had only skimmed over it and often with some careful personal distancing from the material. So the opportunity to delve into the details of this forbidden knowledge was intellectually thrilling for them. Despite the excitement engendered by the topic only a few changed their minds; most did not.
My students had grown up in communities where evolutionary theory was so wrong, so contrary to the accepted worldview of all decent people, that the only acceptable way to talk about it was to denounce it or reject it. The result was that most of my students rejected evolution, but getting a chance to learn about it was profoundly exciting, even if most of them were too conformist (these were Honors students after all) to change their positions.
Erik Gilbert, “Liberal Orthodoxy and the New Heresy”, Quillette, 2019-02-04.