Perhaps we’re on the verge at getting much better at making useful things, spreading ideas that matter and helping people, and not quite so good at leveraging capital for financial institutions. Imagine what would happen if 5,000 investment bankers or 500 M & A lawyers put their talents to work doing something else…

As I look through all the notes and applications I received for the program I’m running next year, I’m not just optimistic. I’m thrilled. There must be hundreds of thousands of movers and shakers out there, people of all ages who are smart and get things done. And more and more, they’re being motivated by the quest, or the outcome, or the people they work with, not just the cash payout. It’s exciting beyond words. The ten people I’ve chosen are just astonishing, each and every one of them.

If you can’t find people like these, you’re not looking in the right places. And if you can’t figure out how to work with them, you’re missing out.

Robert Metcalfe, co-inventor of the Ethernet, noticed that communication networks tend to increase exponentially with each single addition, a logic that today is called Metcalfe’s Law. Think of a fax machine sitting alone and unplugged in your office; it has little value by itself. But plug it into a network of fax machines around the world, and suddenly that communications tool has huge potential. . . .

But Metcalfe’s concept doesn’t apply to Twitter. The explanation why comes from two fellows named Zipf and Dunbar. Back in 1935, linguist George Zipf noticed that words in the English language are used in an interesting pattern. “The” is spoken most commonly, making up 7% of all utterances; “of” is the second-most common word, used exactly one-half as often as “the"…and the pattern continues with the 100th word in popularity being used only 1/100th as often. Zipf’s Law suggests that each subsequent thing in any series (such as your Twitter contacts) has predictable diminishing value. Your spouse is more important than your best friend, who outranks your boss, colleague, and that guy you met on a plane from Chicago. Inside the 2.3 million-strong Twitter network, not all connections are equal, and some will never be used at all. You will probably never send tweets to ice skaters in Finland.

Further depressing Twitter’s internal value is a concept from British anthropologist Robin Dunbar, who noted in 1992 that humans—like other primates—can handle only 150 relationships. If we try to add many more connections, our little brains get overloaded.

These are just theories, but they point out that Twitter is not a vast communications network of 2.3 million users squared. Rather, it consists of small pools of people with gaps and limits on how they interact. This is important to marketers and investors, because it puts big brakes on how internal communications could propagate inside any social media network.

Phaedra Taylor abstained from sex until marriage. But she began researching birth control methods before she was even engaged, and by the time she married David Taylor, she was already charting her fertility.

Taylor, a fresh-faced 28-year-old who would blend in easily with South Austin bohemians, ruled out taking birth control pills after reading a book that claimed the pill could, in some cases, make the uterus uninhabitable after conception occurred. She viewed that as abortion, which she opposes.

“I just wasn’t willing to risk it,” she said.

Taylor wanted her faith to guide her sexual and reproductive decisions after marriage. Natural family planning felt like the best way to honor God, she said.

Update: See David Taylor’s response to the piece on his blog here. “After all these years of trying to get the Statesman to print something about the church and the arts in Austin I now have the honor of having a portion of my sex life on the front page.” You go, David!

What makes [Vancouver] unusual--indeed, at this point unique in all of North America--is that roughly 20 percent of its residents live within a couple of square miles of each other in the city’s center. Downtown Vancouver is a forest of slender, green, condo skyscrapers, many of them with three-story townhouse units forming a kind of podium at the base. Each morning, there are nearly as many people commuting out of the center to jobs in the suburbs as there are commuting in. Two public elementary schools have opened in downtown Vancouver in the past few years. A large proportion of the city’s 600,000 residents, especially those with money, want to live downtown.

No American city looks like Vancouver at the moment. But quite a few are moving in this direction. Demographic inversions of one sort or another are occurring in urban pockets scattered all across America, many of them in seemingly unlikely places. Charlotte, North Carolina, is in the midst of a downtown building boom dominated by new mixed-use high-rise buildings, with office space on the bottom and condos or rental units above. Even at a moment of economic weakness, the condos are still selling briskly.

We are not witnessing the abandonment of the suburbs or a movement of millions of people back to the city all at once. But we are living at a moment in which the massive outward migration of the affluent that characterized the second half of the twentieth century is coming to an end. For several decades now, cities in the United States have wished for a “24/7” downtown, a place where people live as well as work, and keep the streets busy, interesting, and safe at all times of day. This is what urbanist Jane Jacobs preached in the 1960s, and it has long since become the accepted goal of urban planners. Only when significant numbers of people lived downtown, planners believed, could central cities regain their historic role as magnets for culture and as a source of identity and pride for the metropolitan areas they served. Now that’s starting to happen, fueled by the changing mores of the young and by gasoline prices fast approaching $5-per-gallon. In many of its urbanized regions, an America that seemed destined for everincreasing individualization and sprawl is experimenting with new versions of community and sociability.

Foreign missions have long been a significant element of Christianity, and everything from the popular books of Victorian missionaries to the stadium crusades of Billy Graham have brought a certain global consciousness to rank-and-file Christians. Unlike that removed and professionalized globalism, however, this is a globalism of the rank-and-file itself. As millions travel to various sites, and millions more hear from their friends and family members about these travels, they gain personal contact with a world that was once just so many pieces of yarn stretched from the picture of a missionary family to their location on the map of the Missionary Bulletin Board in a church basement.

Moreover, this is not a one-way globalism. It is not simply a neocolonial movement redux. These newest internationalists are part of more complex global flows that carry influence in multiple directions. In their article on the Global Issues Survey, Wuthnow and Offutt cite the flows of people, resources and knowledge as far more multidirectional than in the past. While acknowledging the enormous disparity of wealth and influence between American Christians and those in many other countries, they note examples of Brazilian Pentecostal broadcasts finding significant play in the New York City Spanish language market and Ghanaian gospel hip-hop gaining a hearing in Atlanta congregations. In my own research on short-term Christian volunteerism, I have found that those who make these trips or meet with foreign visitors in their home congregations often are struck by similarities. Statements such as “even though I couldn’t speak Spanish [or Portuguese or Chinese or Amharic], I knew we were worshipping the same God” reflect a belief in a unity and connection with non-Western Christians that few evangelicals personally experienced in the past.

Like the mass popularization of smiley face buttons in the early 1970s, which coincided with another oil and economic crisis, Life is good T-shirts have caught on among people who feel the products are spreading a positive message in a troubled world.

The invention of the smiley face is largely credited to Harvey Ross Ball, an advertising executive from Worcester, Mass., who drew the symbol in 1963 to improve worker morale at an insurance company that had merged with another.

It later became a fad when printed with the slogan “Have a nice day,” selling countless pieces of merchandise as an almost subversively counterintuitive message that in many ways seems to be repeating with “Life is good” today.

“The years when the company has thrived the most have been the most economically, politically and socially challenged years,” Mr. Jacobs said, adding that the company is on track to reach $135 million in sales this year through retail stores and a Web site. (In addition to the 4,500 stores that carry the Life is good merchandise, there are about 105 independently owned shops in airports and cities across the country that sell only Life is good products.) “The people who face the most adversity are the ones who embrace ‘Life is good’ the most,” he said.

Today, cities are refashioning themselves as trendy centers devoid of suburban ills like strip malls and long commutes. In Atlanta, which has among the longest commute times of any U.S. city, the white population rose by 26,000 between 2000 and 2006, while the black population decreased by 8,900. Overall the white proportion has increased to 35% in 2006 from 31% in 2000.

In other cities, whites are still leaving, but more blacks are moving out. Boston lost about 6,000 black residents between 2000 and 2006, but only about 3,000 whites. In 2006, whites accounted for 50.2% of the city’s population, up from 49.5% in 2000. That’s the first increase in roughly a century.

Curry’s conquest of the world began with the conquest of India by the East India Company. Madras curry in its various forms (the word deriving from the Tamil kari and the Telugu kara, as also from similar sounding terms in Kannada and Malayalam), became the most hybrid and ubiquitous of all India’s spicy (masala) sauces and stews. Normally this was served with rice in the south and with soft wheat breads such as chapattis, parathas, puris, or simple nan in the north. The author is not quite correct when she says that the British invented curry: there is not a respectable household anywhere in the countryside that does not produce its own unique curries, with secrets handed down from mother to daughter. But it is true that, starting in Madras, a hybrid Anglo-Indian cuisine spread and became ubiquitous, not only throughout all of the subcontinent (including Pakistan, Bangladesh, Nepal, and Sri Lanka), but gradually throughout the rest of Asia and Africa, and finally to Europe and the Americas.

In the 2004 movie “The Butterfly Effect” - we watched it so you don’t have to - Ashton Kutcher travels back in time, altering his troubled childhood in order to influence the present, though with dismal results. In 1990’s “Havana,” Robert Redford, a math-wise gambler, tells Lena Olin, “A butterfly can flutter its wings over a flower in China and cause a hurricane in the Caribbean. They can even calculate the odds.”

Such borrowings of Lorenz’s idea might seem authoritative to unsuspecting viewers, but they share one major problem: They get his insight precisely backwards. The larger meaning of the butterfly effect is not that we can readily track such connections, but that we can’t.

Kevin Kelly says:

Warren Buffett recently bet an ambitious hedge fund operator $1 million that they won’t beat the returns of S&P 500 after their extremely hefty fees are accounted for. Buffett claims investors will do as well with a no-load index fund over the ten years of the bet. He has long been critical of the performance claims of hedge funds, and his bet is intended to put his money where his mouth is.

Buffett’s million dollar bet was made on Long Bets, the accountability mechanism founded in 2002 by Stewart Brand and myself, and operated by Long Now Foundation. The intention of Long Bets is to encourage responsibility in prediction-making (by keeping a public roster of predictions), to encourage long-term thinking (by offering a opportunity to shape a long-term bet), and to sharpen the logic of forecasting (by recording the logic of predictions and bets.)

In order to make a Long Bet, bettors need to lay out their reasoning. It’s worth reading the two sides’ very short arguments about investing because the two extremes of investment advice are contrasted in them. Buffett, as usual, is stunningly clear in his argument, which ends:

A number of smart people are involved in running hedge funds. But to a great extent their efforts are self-neutralizing, and their IQ will not overcome the costs they impose on investors. Investors, on average and over time, will do better with a low-cost index fund than with a group of funds of funds.