Life’s First Spark Re-Created in the Laboratory

Friday, May 15th, 2009

Life’s first spark has been re-created in the lab:

Scientists think RNA existed early in Earth’s history, providing a necessary intermediate platform between pre-biotic chemicals and DNA, its double-stranded, more-stable descendant.

However, though researchers have been able to show how RNA’s component molecules, called ribonucleotides, could assemble into RNA, their many attempts to synthesize these ribonucleotides have failed. No matter how they combined the ingredients — a sugar, a phosphate, and one of four different nitrogenous molecules, or nucleobases — ribonucleotides just wouldn’t form.

Sutherland’s team took a different approach in what Harvard molecular biologist Jack Szostak called a “synthetic tour de force” in an accompanying commentary in Nature.

“By changing the way we mix the ingredients together, we managed to make ribonucleotides,” said Sutherland. “The chemistry works very effectively from simple precursors, and the conditions required are not distinct from what one might imagine took place on the early Earth.”

Like other would-be nucleotide synthesizers, Sutherland’s team included phosphate in their mix, but rather than adding it to sugars and nucleobases, they started with an array of even simpler molecules that were probably also in Earth’s primordial ooze.

They mixed the molecules in water, heated the solution, then allowed it to evaporate, leaving behind a residue of hybrid, half-sugar, half-nucleobase molecules. To this residue they again added water, heated it, allowed it evaporate, and then irradiated it.

At each stage of the cycle, the resulting molecules were more complex. At the final stage, Sutherland’s team added phosphate. “Remarkably, it transformed into the ribonucleotide!” said Sutherland.

According to Sutherland, these laboratory conditions resembled those of the life-originating “warm little pond” hypothesized by Charles Darwin if the pond “evaporated, got heated, and then it rained and the sun shone.”

Democraphobia goes (slightly) viral

Thursday, May 14th, 2009

A certain skepticism of democracy has gone (slightly) viral, Mencius Moldbug notes, and left-libertarian Will Wilkinson has coined a predictably indignant pejorative — democraphobia:

From our perspective, he spends most of his gas merely in proving his remarkable, if hardly unusual, inability to distinguish freedom from power. A sort of political colorblindness, as it were. (If colorblindness were transmissible.)

It may be pointless to explain the difference between red and green to any such congenital deuteranope. But 360 years ago, one greater than I tried anyway:

Truly I desire their liberty and freedom as much as anybody whomsoever; but I must tell you their liberty and freedom consists of having of government, those laws by which their life and their goods may be most their own. It is not for having a share in government, sir, that is nothing pertaining to them. A subject and sovereign are clear different things.

That would be Charles Stuart, of course.

Wilkinson says that many people have considered libertarian ideas and have rejected them for all sorts of decent reasons, and that libertarians need to take those reasons (and those people) seriously and adequately address them.

Sounds reasonable. Moldbug calls it teh democrack — alluring, perhaps, but divorced from reality:

Dear Will: you mention IQ. Perhaps you’re aware that the average IQ is 100. Have you ever collaborated with, employed, or otherwise befriended anyone with an IQ of 100? If not, it’s never too late to moonlight in “food prep” at your local Hardee’s. You could also enlist in the Marines; train as a cosmetologist; or work as a telemarketer. Or why not all of the above? Don’t you want to connect with your good friends, the People?

After these learning experiences, you may be inspired to set up a special, simplified version of your blog, to explain the virtues of Rawlsekianism to voters in this bracket — who have, as you say, “considered libertarian ideas and rejected them for all sorts of reasons.” (An accessibility feature, as it were. One small step ahead of the ADA.)

Rawles and Hayek aren’t easy to understand. Neither is Marx, of course, but you don’t have to understand Marx to understand Marxism’s allure:

We now arrive at the fundamental comedy of democratic libertarianism — a proposition no less grimly hilarious for its infinite boneheadedness. At the start of the 20th century, “classical liberalism” was conventional common sense, and Marxism and its relatives were on the fringe. Now, Marxism and its progeny are as ubiquitous as cytomegalovirus, and the lineage of John Stuart Mill, Herbert Spencer and Thomas Jefferson infects only a few nerds, stoners and other freaks. (And the world, of course, has gone to hell in a handbasket.) Is this just a coincidence?

Um, no, duh. It’s not just a coincidence. Because if you and your friends can parrot Marxism and get it together to capture the State, Marxism gives you: (a) money; (b) power; and probably (c) women. Whereas if you and your friends can parrot Rawlsekianism and get it together to capture the State, Rawlsekianism gives you — what? Philosophical satisfaction? So: which of these creeds would you expect to be more popular with the masses?

So what we’d expect, just from rational first principles, is that if you start with a libertarian democracy, it will eventually become socialist. Socialism, as a theology of vote-buying and worse, is perfectly preadapted for Darwinian success in a democracy. If democracy is like cancer, socialism is like terminal cancer — the natural, entropic endpoint of the process.

And indeed, not only does the experience of American democracy demonstrate this effect — so does the accumulated wisdom of both Greco-Roman antiquity and classical Europe, both of which regarded democracy and socialism as (a) contemptible and (b) synonymous. You’ll note that the Greeks, in particular, saw upward of five zillion independent city-states over the course of about half a millennium, so their experience is by no means to be taken lightly. (“Aristotle! Plato! Socrates! Morons…”)

Therefore, what the left-libertarian has the courage and forthrightness to propose is not just that a libertarian democracy can remain libertarian —contrary to history, reason, and wisdom alike — but that a socialist democracy can become libertarian! Through the same democratic process that sent it in the other direction! Time reverses, water runs uphill, dogs meow, and old women become young and beautiful. Will, this is why I wonder what your dealer’s selling you.

Blame baby monitors, not congestion, for your WiFi woes

Thursday, May 14th, 2009

Blame baby monitors, not congestion, for your WiFi woes, says a new study commissioned by UK regulators:

The 2.4GHz band actually has quite a bit of spectrum — a full 83MHz between 2.4GHz and 2.483GHz. Teams were dispatched across the UK to check connections in cities of all sizes, but they found congestion problems only in the center of London. Because WiFi is so limited by distance, 83MHz of spectrum proved to be plenty, except in the most densely populated bit of the country.

That’s not to say that WiFi is an efficient protocol; it’s not. Researchers found that a full 90 percent of all “frames” transmitted by WiFi radios contained only management and node broadcast data. “We have found that it is rare for the user data frame rate to exceed 10 percent of the total frame rate,” says the report. Even so, the idea that one’s neighbors are “hogging” all the bandwidth in a particular WiFi channel by excessive downloading simply isn’t supported by the data.

The culprit for poor WiFi turns out, in almost all cases, to be interference. And it’s not generally interference caused by other WiFi radios; the problematic interference is caused most by baby monitors, microwaves, portable phones, and most of all by “audio video senders” (wireless video extenders) which are common in UK apartment buildings.

“The effect of AV senders on WiFi clients is distinctive and repeatable,” says the report. “As these devices are inexpensive and readily available in supermarkets, we conclude that the majority of the accusations levelled at residential users for abusing the WiFi networks are actually caused by the installation of AV senders or similar devices. Such devices can easily deprive neighbors of use of a WiFi channel and, at the same time, give the impression of overuse of the channel.”

Wu Wei

Thursday, May 14th, 2009

Although there is no formula or science of government, libertarian policies tend to be good ones, Mencius Moldbug notes:

Nor did we need Hayek to tell us this. It was known to my namesake, over two millennia ago.

Wu wei — for this is its true name — is a public policy for a virtuous prince, not a gigantic committee. The virtuous prince should practice wu wei, and will; that is his nature. Men will flock to his kingdom and prosper there. The evil prince will commit atrocities; that is his nature. Men will flee his kingdom, and should do so ASAP before he gets the minefields in.

It had never occurred to me that the esoteric notion of wu wei — “effortless action” — might equate with laissez-faire.

Of course, I’m more familiar with wu wei as practiced in the “soft” martial art of baguazhang — as I’ve been on the receiving end of an effortless combat throw or two.

Don’t!

Wednesday, May 13th, 2009

Jonah Lehrer looks back at the famous marshmallow experiment and the children who were able to say Don’t! to themselves — and those who weren’t able to resist a marshmallow for a few minutes to earn a second one:

Most of the children were like Craig. They struggled to resist the treat and held out for an average of less than three minutes. “A few kids ate the marshmallow right away,” Walter Mischel, the Stanford professor of psychology in charge of the experiment, remembers. “They didn’t even bother ringing the bell. Other kids would stare directly at the marshmallow and then ring the bell thirty seconds later.” About thirty per cent of the children, however, were like Carolyn. They successfully delayed gratification until the researcher returned, some fifteen minutes later. These kids wrestled with temptation but found a way to resist.

The initial goal of the experiment was to identify the mental processes that allowed some people to delay gratification while others simply surrendered. After publishing a few papers on the Bing studies in the early seventies, Mischel moved on to other areas of personality research. “There are only so many things you can do with kids trying not to eat marshmallows.”

But occasionally Mischel would ask his three daughters, all of whom attended the Bing, about their friends from nursery school. “It was really just idle dinnertime conversation,” he says. “I’d ask them, ‘How’s Jane? How’s Eric? How are they doing in school?’ ” Mischel began to notice a link between the children’s academic performance as teen-agers and their ability to wait for the second marshmallow. He asked his daughters to assess their friends academically on a scale of zero to five. Comparing these ratings with the original data set, he saw a correlation. “That’s when I realized I had to do this seriously,” he says. Starting in 1981, Mischel sent out a questionnaire to all the reachable parents, teachers, and academic advisers of the six hundred and fifty-three subjects who had participated in the marshmallow task, who were by then in high school. He asked about every trait he could think of, from their capacity to plan and think ahead to their ability to “cope well with problems” and get along with their peers. He also requested their S.A.T. scores.

Once Mischel began analyzing the results, he noticed that low delayers, the children who rang the bell quickly, seemed more likely to have behavioral problems, both in school and at home. They got lower S.A.T. scores. They struggled in stressful situations, often had trouble paying attention, and found it difficult to maintain friendships. The child who could wait fifteen minutes had an S.A.T. score that was, on average, two hundred and ten points higher than that of the kid who could wait only thirty seconds.

Ignoring a hot stimulus requires strategic allocation of attention, which requires metacognition:

t the time, psychologists assumed that children’s ability to wait depended on how badly they wanted the marshmallow. But it soon became obvious that every child craved the extra treat. What, then, determined self-control? Mischel’s conclusion, based on hundreds of hours of observation, was that the crucial skill was the “strategic allocation of attention.” Instead of getting obsessed with the marshmallow — the “hot stimulus” — the patient children distracted themselves by covering their eyes, pretending to play hide-and-seek underneath the desk, or singing songs from “Sesame Street.” Their desire wasn’t defeated — it was merely forgotten. “If you’re thinking about the marshmallow and how delicious it is, then you’re going to eat it,” Mischel says. “The key is to avoid thinking about it in the first place.”

In adults, this skill is often referred to as metacognition, or thinking about thinking, and it’s what allows people to outsmart their shortcomings. (When Odysseus had himself tied to the ship’s mast, he was using some of the skills of metacognition: knowing he wouldn’t be able to resist the Sirens’ song, he made it impossible to give in.) Mischel’s large data set from various studies allowed him to see that children with a more accurate understanding of the workings of self-control were better able to delay gratification. “What’s interesting about four-year-olds is that they’re just figuring out the rules of thinking,” Mischel says. “The kids who couldn’t delay would often have the rules backwards. They would think that the best way to resist the marshmallow is to stare right at it, to keep a close eye on the goal. But that’s a terrible idea. If you do that, you’re going to ring the bell before I leave the room.”

According to Mischel, this view of will power also helps explain why the marshmallow task is such a powerfully predictive test. “If you can deal with hot emotions, then you can study for the S.A.T. instead of watching television,” Mischel says. “And you can save more money for retirement. It’s not just about marshmallows.”

Subsequent work by Mischel and his colleagues found that these differences were observable in subjects as young as nineteen months. Looking at how toddlers responded when briefly separated from their mothers, they found that some immediately burst into tears, or clung to the door, but others were able to overcome their anxiety by distracting themselves, often by playing with toys. When the scientists set the same children the marshmallow task at the age of five, they found that the kids who had cried also struggled to resist the tempting treat.

People generally learn how to use their mind through trial and error, but Mischel found a shortcut:

When he and his colleagues taught children a simple set of mental tricks — such as pretending that the candy is only a picture, surrounded by an imaginary frame — he dramatically improved their self-control. The kids who hadn’t been able to wait sixty seconds could now wait fifteen minutes. “All I’ve done is given them some tips from their mental user manual,” Mischel says. “Once you realize that will power is just a matter of learning how to control your attention and thoughts, you can really begin to increase it.”

Do children taught those tricks perform as well in life as their improved performance on the marshmallow test would suggest? The talent seems to generalize, but no one knows if the training does. Simple tricks might not generalize well, but long-term training — character-building — might:

Angela Lee Duckworth, an assistant professor of psychology at the University of Pennsylvania, is leading the program. She first grew interested in the subject after working as a high-school math teacher. “For the most part, it was an incredibly frustrating experience,” she says. “I gradually became convinced that trying to teach a teen-ager algebra when they don’t have self-control is a pretty futile exercise.” And so, at the age of thirty-two, Duckworth decided to become a psychologist. One of her main research projects looked at the relationship between self-control and grade-point average. She found that the ability to delay gratification — eighth graders were given a choice between a dollar right away or two dollars the following week — was a far better predictor of academic performance than I.Q. She said that her study shows that “intelligence is really important, but it’s still not as important as self-control.”

Last year, Duckworth and Mischel were approached by David Levin, the co-founder of KIPP, an organization of sixty-six public charter schools across the country. KIPP schools are known for their long workday—students are in class from 7:25 A.M. to 5 P.M. — and for dramatic improvement of inner-city students’ test scores. (More than eighty per cent of eighth graders at the KIPP academy in the South Bronx scored at or above grade level in reading and math, which was nearly twice the New York City average.) “The core feature of the KIPP approach is that character matters for success,” Levin says. “Educators like to talk about character skills when kids are in kindergarten — we send young kids home with a report card about ‘working well with others’ or ‘not talking out of turn.’ But then, just when these skills start to matter, we stop trying to improve them. We just throw up our hands and complain.”

Self-control is one of the fundamental “character strengths” emphasized by KIPP — the KIPP academy in Philadelphia, for instance, gives its students a shirt emblazoned with the slogan “Don’t Eat the Marshmallow.” Levin, however, remained unsure about how well the program was working — “We know how to teach math skills, but it’s harder to measure character strengths,” he says — so he contacted Duckworth and Mischel, promising them unfettered access to KIPP students.

Towards a Cambrian explosion in government

Wednesday, May 13th, 2009

Michael Strong (Be the Solution) converted from left-liberalism to libertarianism due to the unambiguous superiority of, in Hayek’s terms, the creative powers of a free civilization as compared to the public choice process:

My favorite example of the comparison is the fact that by the mid-1980s a University of Chicago computer scientist could point out that any decent university in the U.S. had more computing power than did the entire Soviet Union, despite the fact that the Soviet Union had some of the best mathematicians on earth and had dedicated significant government resources towards developing a supercomputer to compete with the Cray. When one thinks of the thousands and thousands of incremental innovations that resulted in the U.S. IT industry, each of which not only required a scientific and engineering innovation, but also an entrepreneurial innovation to create low-cost, high quality components at scale, one realizes that it is absurd to expect teams of smart, frightened mathematicians in Soviet labs to compete with the U.S. entrepreneurial innovation machine. They didn’t stand a chance, and their obvious failure was not because they weren’t smart enough, but it was because there is no way that one deliberate government-mandated initiative (or four, or five, or twenty, or fifty government-mandated initiatives) can compete over time with a rich, diverse, open entrepreneurial ecosystem.

In the same way, Strong would like to us to move towards a Cambrian explosion in government.

The Case Against Breast-Feeding

Wednesday, May 13th, 2009

Hanna Rosin gives the case against breast-feeding — a case she certainly never heard expressed in her social circle:

In my playground set, the urban moms in their tight jeans and oversize sunglasses size each other up using a whole range of signifiers: organic content of snacks, sleekness of stroller, ratio of tasteful wooden toys to plastic. But breast-feeding is the real ticket into the club.

The science, it turns out, is far from conclusive — and the whole thing is far from free:

Breast-feeding exclusively is not like taking a prenatal vitamin. It is a serious time commitment that pretty much guarantees that you will not work in any meaningful way. Let’s say a baby feeds seven times a day and then a couple more times at night. That’s nine times for about a half hour each, which adds up to more than half of a working day, every day, for at least six months. This is why, when people say that breast-feeding is “free,” I want to hit them with a two-by-four. It’s only free if a woman’s time is worth nothing.

Economics rears its head in the oddest places.

The TED Commandments

Tuesday, May 12th, 2009

Speakers invited to TED are directed to follow the TED Commandments:

  1. Thou Shalt Not Simply Trot Out thy Usual Shtick.
  2. Thou Shalt Dream a Great Dream, or Show Forth a Wondrous New Thing, Or Share Something Thou Hast Never Shared Before.
  3. Thou Shalt Reveal thy Curiosity and Thy Passion.
  4. Thou Shalt Tell a Story.
  5. Thou Shalt Freely Comment on the Utterances of Other Speakers for the Sake of Blessed Connection and Exquisite Controversy.
  6. Thou Shalt Not Flaunt thine Ego. Be Thou Vulnerable. Speak of thy Failure as well as thy Success.
  7. Thou Shalt Not Sell from the Stage: Neither thy Company, thy Goods, thy Writings, nor thy Desperate need for Funding; Lest Thou be Cast Aside into Outer Darkness.
  8. Thou Shalt Remember all the while: Laughter is Good.
  9. Thou Shalt Not Read thy Speech.
  10. Thou Shalt Not Steal the Time of Them that Follow Thee.

What Venture Capital Can Teach Corporate America

Tuesday, May 12th, 2009

Peter Rip of Crosslink Capital discusses what venture capital can teach corporate America:

  • Finance Growth With Equity, Not Debt
    In a study surveying 30 years, researchers found that companies started when credit was difficult to obtain had better odds of long-term survival than firms started under more liberal credit environments.
  • Owners Act Like Owners, Not Employees
    The spread between chief executive and rank-and-file salaries is usually a fraction of what it is in public companies. Senior executives have equity ownership, and it is their long-term compensation. Incentives between owners and managers are aligned because they are the same people.
  • Accountability Is Everything
    Unlike in public companies, boards of venture-backed companies have no reluctance to replace C.E.O.’s or key managers when things aren’t working. “Wait until next year, again” is not tolerated because the companies cannot afford it. Cash is king.
  • It’s About Capital Efficiency
    Our job is to allocate equity capital to the best and let go of the ones that are less efficient. Our job is to allocate equity capital to the best and let go of the ones that are less efficient.

Ricardo’s Difficult Idea

Tuesday, May 12th, 2009

With Paul Krugman, as with all of life, David Henderson says, we need to keep the wheat and discard the chaff — which is why Henderson recommends Krugman’s piece on Ricardo’s Difficult Idea:

The title of this paper is a play on that of an admirable recent book by the philosopher Daniel Dennett, Darwin’s Dangerous Idea: Evolution and the Meanings of Life (1995). Dennett’s book is an examination of the reasons why so many intellectuals remain hostile to the idea of evolution through natural selection — an idea that seems simple and compelling to those who understand it, but about which intelligent people somehow manage to get confused time and time again.

The idea of comparative advantage — with its implication that trade between two nations normally raises the real incomes of both — is, like evolution via natural selection, a concept that seems simple and compelling to those who understand it. Yet anyone who becomes involved in discussions of international trade beyond the narrow circle of academic economists quickly realizes that it must be, in some sense, a very difficult concept indeed. I am not talking here about the problem of communicating the case for free trade to crudely anti-intellectual opponents, people who simply dislike the idea of ideas. The persistence of that sort of opposition, like the persistence of creationism, is a different sort of question, and requires a different sort of discussion. What I am concerned with here are the views of intellectuals, people who do value ideas, but somehow find this particular idea impossible to grasp.

Read the whole thing, especially if you find both economics and evolution compelling — and other people’s confusion baffling.

Recipe for Autocratic Success

Tuesday, May 12th, 2009

The recipe for autocratic success, Bruce Bueno de Mesquita says, is to embrace economic growth while postponing democracy — by providing the public goods vital to economic growth while holding back the coordination goods vital to seizing political power:

Examples of this strategy abound, including these cases during the past three years. China has periodically blocked access to Google’s English-language news service and recently forced Microsoft to block words such as freedom and democracy on the Microsoft software used by bloggers. Those moves were only the latest in a long line of Chinese restrictions on Internet-related activity, running the gamut from creating a special Internet police unit to limiting the number of Internet gateways into China. In Russia, meanwhile, President Vladimir Putin has placed all national television networks under strict government control. In October 2003, he engineered the arrest of Mikhail Khodorkovsky, one of his most prominent critics; a highly visible prosecution followed.

In Venezuela, President Hugo Chávez pushed through a new law in December 2004 allowing him to ban news reports of violent protests or of government crackdowns and to suspend the broadcasting licenses of media outlets that violate any of a long list of broadly phrased regulations. And in Vietnam, the government has imposed strict controls on religious organizations and branded the leaders of unauthorized religious groups (including Roman Catholics, Mennonites, and some Buddhists) as subversives.

Each of these cases has involved the restriction of what might be called coordination goods — that is, those public goods that critically affect the ability of political opponents to coordinate but that have relatively little impact on economic growth. Coordination goods are distinct from more-general public goods — transportation, health care, primary education, and national defense — which, when restricted, have a substantial impact on both public opinion and economic growth.

Historically, oppressive governments seeking to crack down on those pushing for democratic change have suppressed both types of goods — undermining their economies in the process. This was the dominant pattern in much of Asia and Africa until the 1980s, and it remains the case today in many of the poorest states, such as Myanmar and Zimbabwe. Recently, however, governments in Russia, China, Vietnam, and elsewhere have discovered that, by focusing their restrictions on coordination goods only, they can continue to provide those services necessary for economic progress and short-circuit the pressure for the political change such progress typically promotes.

Of course, the availability of most public goods has some impact on the ability of opposition groups to organize and coordinate. But four types of goods play a fundamental role in such activities: political rights, more-general human rights, press freedom, and accessible higher education.

The first of these goods, political rights, includes free speech and the rights to organize and demonstrate peacefully. Although political rights are largely negative, in that they limit state interference rather than require state action, they sometimes require governments to take a variety of steps to enforce them, especially when they involve minority groups’ voicing opinions that are unpopular with the majority.

As for more-general human rights, these include freedom from arbitrary arrest and the related protection of habeas corpus; the right to nondiscrimination based on religion, race, ethnicity, and sex; freedom from physical abuse; and the right to travel, both domestically and abroad.

A diverse and largely unregulated press (and other forms of media) is also vital to effective political opposition because it enables information to be disseminated that can bring diverse groups together around common interests. Like political rights, the right to a free press is a largely negative one because it generally requires the government not to interfere. It may also require affirmative steps, however, such as granting licenses to radio and TV frequencies, guaranteeing public access to those and other media, and translating official documents into regional languages.

Finally, broad access to higher education and graduate training is vital if citizens are to develop the skills to communicate, organize, and develop a political presence. Advanced education also helps create a large pool of potential opposition leaders, thereby increasing the supply of rivals to the incumbent government.

Some authoritarian governments claim that they deny access to higher education (and other coordination goods) because of their exorbitant costs. In reality, coordination goods are not generally more expensive than other public goods and are far cheaper than some, such as national defense or transportation. When governments choose to restrict them, therefore, it is to increase the political costs of coordination, not to save money. In fact, some coordination goods actually cost more to suppress than to allow — as when governments expend resources cracking down on opposition movements or jam free media outlets and produce their own propaganda.

A disciplined, orderly and demanding counterculture

Friday, May 8th, 2009

David Brooks describes the Harlem Miracle:

[Harvard economist Roland] Fryer and his colleague Will Dobbie have just finished a rigorous assessment of the charter schools operated by the Harlem Children’s Zone. They compared students in these schools to students in New York City as a whole and to comparable students who entered the lottery to get into the Harlem Children’s Zone schools, but weren’t selected.

They found that the Harlem Children’s Zone schools produced “enormous” gains. The typical student entered the charter middle school, Promise Academy, in sixth grade and scored in the 39th percentile among New York City students in math. By the eighth grade, the typical student in the school was in the 74th percentile. The typical student entered the school scoring in the 39th percentile in English Language Arts (verbal ability). By eighth grade, the typical student was in the 53rd percentile.

Forgive some academic jargon, but the most common education reform ideas — reducing class size, raising teacher pay, enrolling kids in Head Start — produce gains of about 0.1 or 0.2 or 0.3 standard deviations. If you study policy, those are the sorts of improvements you live with every day. Promise Academy produced gains of 1.3 and 1.4 standard deviations. That’s off the charts. In math, Promise Academy eliminated the achievement gap between its black students and the city average for white students.

Let me repeat that. It eliminated the black-white achievement gap.

The Promise Academy is a no excuses school:

The basic theory is that middle-class kids enter adolescence with certain working models in their heads: what I can achieve; how to control impulses; how to work hard. Many kids from poorer, disorganized homes don’t have these internalized models. The schools create a disciplined, orderly and demanding counterculture to inculcate middle-class values.

What a sad statement, that a disciplined, orderly and demanding culture is now a counterculture, and that these once-mainstream values are middle-class values.

It’s even sadder, I suppose, that we all expect the teachers’ union to squash that program as soon as possible.

College Student Shoots, Kills Home Invader

Friday, May 8th, 2009

You rarely need a gun, but when you do need a gun, you need a gun — like, say, when masked gunmen raid your home:

“Apparently, his intent was to rape and murder us all,” said student Charles Bailey.

Bailey said he thought it was the end of his life and the lives of the 10 people inside his apartment for a birthday party after two masked men with guns burst in through a patio door.

“They just came in and separated the men from the women and said, ‘Give me your wallets and cell phones,’” said George Williams of the College Park Police Department.

Bailey said the gunmen started counting bullets. “The other guy asked how many (bullets) he had. He said he had enough,” said Bailey.

That’s when one student grabbed a gun out of a backpack and shot at the invader who was watching the men. The gunman ran out of the apartment.

The student then ran to the room where the second gunman, identified by police as 23-year-old Calvin Lavant, was holding the women.

“Apparently the guy was getting ready to rape his girlfriend. So he told the girls to get down and he started shooting. The guy jumped out of the window,” said Bailey.

A neighbor heard the shots and heard someone running nearby.

“And I heard someone say, ‘Someone help me. Call the police. Somebody call the police,’” said a neighbor.

The neighbor said she believes it was Lavant, who was found dead near his apartment, only one building away.

Bailey said he is just thankful one student risked his life to keep others alive.

“I think all of us are really cognizant of the fact that we could have all been killed,” said Bailey.

One female student was shot several times during the crossfire. She is expected to make a full recovery.

Police said they are close to making the arrest of the second suspect.

(Hat tip to Al Fin, who also mentions the Wichita massacre from a few years back.)

A Brief, Incomplete, and Mostly Wrong History of Programming Languages

Friday, May 8th, 2009

I enjoyed James Iry’s brief, incomplete, and mostly wrong history of programming languages:

1801 – Joseph Marie Jacquard uses punch cards to instruct a loom to weave “hello, world” into a tapestry. Redditers of the time are not impressed due to the lack of tail call recursion, concurrency, or proper capitalization.

1842 – Ada Lovelace writes the first program. She is hampered in her efforts by the minor inconvenience that she doesn’t have any actual computers to run her code. Enterprise architects will later relearn her techniques in order to program in UML.

1940s – Various “computers” are “programmed” using direct wiring and switches. Engineers do this in order to avoid the tabs vs spaces debate.

Read the whole thing — if your geek-fu is strong.

(Hat tip to Todd.)

The Future of Internet TV

Friday, May 8th, 2009

The future of Internet TV, Cringely says, is iTunes, not Hulu:

When you buy an episode on iTunes everyone in the production food chain makes a profit.

Hulu and its ilk are money-losing services that rely largely on concessions in various guild contracts that pretty much keep the writers and producers and actors from sharing in profits that aren’t there anyway, at least not yet.

How is this a threat to iTunes?

Fox owns a big chunk of Hulu, yet American Idol performances are exclusively available on iTunes, not Hulu. Why is that? Because American Idol performances on iTunes make a lot of money, that’s why. Adam Lambert downloads alone make more money every week — a lot more money — than do all the shows on Hulu put together.

So Apple is being criticized and seen as an Internet antique because it is making a profit? I don’t get it.