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In the 1960s archaeologists from the University of Chicago had surveyed the region and concluded that Göbekli Tepe was of little interest. Disturbance was evident at the top of the hill, but they attributed it to the activities of a Byzantine-era military outpost.

Schmidt had come across the Chicago researchers' brief description of the hilltop and decided to check it out. On the ground he saw flint chips—huge numbers of them. "Within minutes of getting there," Schmidt says, he realized that he was looking at a place where scores or even hundreds of people had worked in millennia past.

s the months and years went by, Schmidt's team

found a second circle of stones, then a third, and then more. Geomagnetic surveys in 2003 revealed at least 20 rings piled together, higgledy-piggledy, under the earth

The pillars were big—the tallest are 18 feet in height and weigh 16 tons. Swarming over their surfaces was a menagerie of animal bas-reliefs, each in a different style, some roughly rendered, a few as refined and symbolic as Byzantine art.

The circles follow a common design. All are made from limestone pillars shaped like giant spikes or capital T's. Bladelike, the pillars are easily five times as wide as they are deep. They stand an arm span or more apart, interconnected by low stone walls. In the middle of each ring are two taller pillars, their thin ends mounted in shallow grooves cut into the floor.

"They hadn't yet mastered engineering." Knoll speculated that the pillars may have been propped up, perhaps by wooden posts.

To Schmidt, the T-shaped pillars are stylized human beings, an idea bolstered by the carved arms that angle from the "shoulders" of some pillars, hands reaching toward their loincloth-draped bellies.

The stones face the center of the circle—as at "a meeting or dance," Schmidt says—a representation, perhaps, of a religious ritual.

As for the prancing, leaping animals on the figures, he noted that they are mostly deadly creatures: stinging scorpions, charging boars, ferocious lions. The figures represented by the pillars may be guarded by them, or appeasing them, or incorporating them as totems.

The site may have been built, filled in, and built again for centuries.

Bewilderingly, the people at Göbekli Tepe got steadily worse at temple building.

The earliest rings are the biggest and most sophisticated, technically and artistically. As time went by, the pillars became smaller, simpler, and were mounted with less and less care. Finally the effort seems to have petered out altogether by 8200 B.C. Göbekli Tepe was all fall and no rise.

PhD students and contract staff known as “postdocs”, described by one student as “the ugly underbelly of academia”, do much of the research these days.

In some areas five years as a postdoc is now a prerequisite for landing a secure full-time job.

About one-third of Austria’s PhD graduates take jobs unrelated to their degrees. In Germany 13% of all PhD graduates end up in lowly occupations. In the Netherlands the proportion is 21%.

In America only 57% of doctoral students will have a PhD ten years after their first date of enrolment. In the humanities, where most students pay for their own PhDs, the figure is 49%.

in 1966 only 23% of science and engineering PhDs in America were awarded to students born outside the country. By 2006 that proportion had increased to 48%. Foreign students tend to tolerate poorer working conditions, and the supply of cheap, brilliant, foreign labour also keeps wages down.

The earnings premium for a PhD is 26%. But the premium for a master’s degree, which can be accomplished in as little as one year, is almost as high, at 23%

PhDs in maths and computing, social sciences and languages earn no more than those with master’s degrees

the skills learned in the course of a PhD can be readily acquired through much shorter courses.

In one study of British PhD graduates, about a third admitted that they were doing their doctorate partly to go on being a student, or put off job hunting.

The more bright students stay at universities, the better it is for academics. Postgraduate students bring in grants and beef up their supervisors’ publication records.

Writing lab reports, giving academic presentations and conducting six-month literature reviews can be surprisingly unhelpful in a world where technical knowledge has to be assimilated quickly and presented simply to a wide audience.

Many of those who embark on a PhD are the smartest in their class and will have been the best at everything they have done. They will have amassed awards and prizes. As this year’s new crop of graduate students bounce into their research, few will be willing to accept that the system they are entering could be designed for the benefit of others, that even hard work and brilliance may well not be enough to succeed, and that they would be better off doing something else.

The problem? Namely, this: With no established federal definition of technological literacy, most states have chosen to follow the National Educational Technology Standards (NETS) established by the International Society for Technology in Education (ISTE), and to create their curricula and assessments accordingly.

gical literacy that is very different from anything any state or No Child Left Behind (NCLB) envisioned. From the draft document: "In recent decades the meaning of technological literacy has taken on three quite different… forms in the United States. These are the science, technology, and society approach, the technology education approach, and the information and communications technology approach. In recognition of the importance, educational value, and interdependence of these three approaches, this framework includes all three under its broad definition of technological literacy."

Geoffrey H. Fletcher is the editorial director of 1105 Media's Education Group. He can be reached at gfletcher@1105media.com. Comments

That’s not to say there isn’t any room for humans in Demand’s process. They just aren’t worth very much. First, a crowdsourced team of freelance “title proofers” turn the algorithm’s often awkward or nonsensical phrases into something people will understand: “How to make a church-pew breakfast nook,” for example, becomes “How to make a breakfast nook out of a church pew.” Approved headlines get fed into a password-protected section of Demand’s Web site called Demand Studios, where any Demand freelancer can see what jobs are available. It’s the online equivalent of day laborers waiting in front of Home Depot. Writers can typically select 10 articles at a time; videographers can hoard 40. Nearly every freelancer scrambles to load their assignment queue with titles they can produce quickly and with the least amount of effort — because pay for individual stories is so lousy, only a high-speed, high-volume approach will work. The average writer earns $15 per article for pieces that top out at a few hundred words, and the average filmmaker about $20 per clip, paid weekly via PayPal. Demand also offers revenue sharing on some articles, though it can take months to reach even $15 in such payments. Other freelancers sign up for the chance to copyedit ($2.50 an article), fact-check ($1 an article), approve the quality of a film (25 to 50 cents a video), transcribe ($1 to $2 per video), or offer up their expertise to be quoted or filmed (free). Title proofers get 8 cents a headline. Coming soon: photographers and photo editors. So far, the company has paid out more than $17 million to Demand Studios workers; if the enterprise reaches Rosenblatt’s goal of producing 1 million pieces of content a month, the payouts could easily hit $200 million a year, less than a third of what The New York Times shells out in wages and benefits to produce its roughly 5,000 articles a month.

But once it was automated, every algorithm-generated piece of content produced 4.9 times the revenue of the human-created ideas. So Rosenblatt got rid of the editors. Suddenly, profit on each piece was 20 to 25 times what it had been. It turned out that gut instinct and experience were less effective at predicting what readers and viewers wanted — and worse for the company — than a formula.

Here is the thing that Rosenblatt has since discovered: Online content is not worth very much. This may be a truism, but Rosenblatt has the hard, mathematical proof. It’s right there in black and white, in the Demand Media database — the lifetime value of every story, algorithmically derived, and very, very small. Most media companies are trying hard to increase those numbers, to boost the value of their online content until it matches the amount of money it costs to produce. But Rosenblatt thinks they have it exactly backward. Instead of trying to raise the market value of online content to match the cost of producing it — perhaps an impossible proposition — the secret is to cut costs until they match the market value.

Seven Habits of Highly Effective People -- a set of universal, timeless, self-evident principles common to every enduring, prospering society, organization, or family. I take no credit for these principles. I simply organized, sequenced and articulated them. These principles include 1) taking personal responsibility and initiative, 2) getting clear about what's important to you and setting goals, 3) putting those priorities first and being disciplined, 4) seeking mutual benefit in all interactions with others -- the golden rule, 5) seeking to understand others from their perspective first before making your point, 6) valuing differences and creating third-alternative solutions to problems that are better than "my way" or "your way," and 7) taking care of and renewing yourself in all four areas of life -- body, mind, heart and spirit.

The approach is inside-out, with the teachers and administrators learning, living and modeling the principles themselves first, and then, at the most basic level, integrating the principles into their teaching every day. There is no new curriculum. The principles of effectiveness are creatively woven by teachers into every subject -- reading, math, history, science, social studies, art, etc. From the moment they walk into the school each day until the final bell rings, the children soak in their adult leaders' belief that they are leaders of their own lives, have unique talents, and can make a difference.

We don't define leadership as becoming the CEO or the few percent who will end up in big leadership positions. We are talking about leading your own life, being a leader among your friends, being a leader in your own family. Leadership, as one school put it, is doing the right thing even when no one is looking.

The world has moved into one of the most profound eras of change in human history.