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this might explain why it is relative, rather than absolute, inequality that matters so much to people today. In modern Western society, when even relatively poor people have access to transport, refrigeration, entertainment, shoes and plentiful food, you might expect that inequality would be less resented than a century ago—when none of those things might come within the reach of a poor person. What does it matter if there are people who can afford private jets and designer dresses? But clearly that isn't how people think. They resent inequality in luxuries just as much if not more than inequality in necessities. They dislike (and envy) conspicuous consumption, even if it impinges on them not at all. What hurts is not that somebody is rich, but that he is richer.

We should consider ourselves as a product of these two interacting and often competing levels of evolutionary selection. Individual versus group selection results in a mix of altruism and selfishness, of virtue and sin, among the members of a society.

a pretty straightforward answer as to why conflicted emotions are at the very foundation of human existence

why we never seem to be able to work things out satisfactorily, particularly internationally.

religious strife is not the consequence of differences among people. It's about

our tribalistic tendencies to form groups, occupy territories and react fiercely to any intrusion or threat to ourselves, our tribe and our special creation story

Such intense instincts could arise in evolution only by group selection—tribe competing against tribe. For me, the peculiar qualities of faith are a logical outcome of this level of biological organization.

I see no way out of the problems that organized religion and tribalism create other than humans just becoming more honest and fully aware of themselves. Right now we're living in what Carl Sagan correctly termed a demon-haunted world. We have created a Star Wars civilization but we have Paleolithic emotions

I'm devoted to the kind of environmentalism that is particularly geared towards the conservation of the living world, the rest of life on Earth, the place we came from. We need to put a lot more attention into that as something that could unify people. Surely one moral precept we can agree on is to stop destroying our birthplace, the only home humanity will ever have.

we ought to have another go at the Enlightenment and use that as a common goal to explain and understand ourselves, to take that self-understanding which we so sorely lack as a foundation for what we do in the moral and political realm

I would like to see us improving education worldwide and putting a lot more emphasis—as some Asian and European countries have—on science and technology as part of basic education

features of the skull, it is thought to have been a male with large cheek bones, teeth, and jaws, but a small brain

newly described skull also expands the morphological variability of the specimens found at the Dmanisi site—some of which appear less primitive. Despite this variability, Zollikofer believes all the specimens are members of the same species. That would be “the most parsimonious explanation,”

He suggested that other hominin fossils previously classified as separate species—such as H. habilis, H. rudolfensis, and H. erectus—should be re-examined.

urge for a change in perspective, because what has happened in the last ten years is that people tried to divide—they tried to show species diversity—and what we try to show now is diversity, but within one single evolving species,” Zollikofer said.

it’s important not to lose focus on the fact that for all its problems, our modern food system has us living longer and less deprived than centuries past. The challenge is striking balance.

whole grains have consistently shown to be parts of the diets of the longest-lived, healthiest people.

Changing the way we eat is a major change. It will involve multiple decisions every day. Presumably our old habits existed for reasons—convenience, enjoyment, availability, cost, marketing, etc. Modifying the habits that these conditions created means hard work and requires dedication to a cause. I’m not convinced that concern for the health of our bodies years in the future is sufficient.

Viktor Frankl wrote in Man’s Search for Meaning that the key is to avoid the temptation to pursue happiness—like that being sold to us through all of the new-year deals—but to pursue meaning. Piles of research have shown that a sense of purpose is a central to long, healthy life.

There’s purpose to be had in how we eat—in how conscientious we can be, how minimally we can disrupt the world for those that will come after us and those working to produce and procure our food. I think this is a sustainable and worthy resolution for a healthier way to eat, if you’re intent on making one. It works for the mind and body at once, and, most importantly, not just our own.

“Is there a weight of evidence that says we can totally ignore both dietary cholesterol and LDL? Absolutely not,” he said. “You can legitimately say we’re starting to rethink some things, but ignoring LDL could absolutely result in heart attacks and strokes.

The medical community’s understanding of the danger of cholesterol is changing. Many cardiologists are starting to think that independent of other considerations, the level of LDL in our blood may not be as important as it previously seemed.

In November, the American Heart Association and the American College of Cardiology released new guidelines that redefined the use of statins. While they continue to recommend that people at high risk for heart disease and people with LDL levels above 189 take a statin, the long-standing goal of lowering one’s LDL level to 70 is no longer deemed worthwhile to monitor.

Katz acknowledges that dietary cholesterol may be an innocuous part of an overall healthy diet. “The problem is that people are going to get their dietary cholesterol from things other than fish and eggs; they’re going to get it from meats and dairies. The problem with diets like that is if you eat more of A, you’re probably going to eat less of B. So people who are eating more meat and dairy and high-fat, high-cholesterol foods are eating fewer plants—they’re not eating beans; they’re not eating lentils. So yes, I think it’s entirely confabulated and contrived, and potentially dangerous on the level of lethal.”

Having talked to all of these people and read their work, here is how I walk away from this. Oxidative stress will increasingly be the target of medical treatments and preventive diets. We’ll hear more about the role of blood sugar in Alzheimer’s and continue to focus on moderating intake of refined carbohydrates. The consensus remains that too much LDL is bad for you. We do not have reason to believe that gluten is bad for most people. It does cause reactive symptoms in some people. Peanuts can kill some people, but that does not mean they are bad for everyone

I agree with Katz that the diets consistently shown to have good long-term health outcomes—both mental and physical—include whole grains and fruits, and are not nearly as high in fat as what Perlmutter proposes.

Shigir Idol

Dug out of a peat bog by gold miners in 1890, the relic, or what’s left of it, is carved from a great slab of freshly cut larch.

Scattered among the geometric patterns (zigzags, chevrons, herringbones) are eight human faces, each with slashes for eyes that peer not so benignly from the front and back planes.

“Whether it screams or shouts or sings, it projects authority, possibly malevolent authority. It’s not immediately a friend of yours, much less an ancient friend of yours.”

In archaeology, portable prehistoric sculpture is called “mobiliary art.”

The statue’s age was a matter of conjecture until 1997, when it was carbon-dated by Russian scientists to about 9,500 years old, an age that struck most scholars as fanciful.

The statue was more than twice as old as the Egyptian pyramids and Stonehenge, as well as, by many millenniums, the first known work of ritual art.

A new study that Dr. Terberger wrote with some of the same colleagues in Quaternary International, further skews our understanding of prehistory by pushing back the original date of the Shigir Idol by another 900 years, placing it in the context of the early art in Eurasia.

“During the period of rapid cooling from about 10,700 B.C. to 9,600 B.C. that we call the Younger Dryas, no beavers should have been around in the Transurals,” he said.)

Written with an eye toward disentangling Western science from colonialism, Dr. Terberger’s latest paper challenges the ethnocentric notion that pretty much everything, including symbolic expression and philosophical perceptions of the world, came to Europe by way of the sedentary farming communities in the Fertile Crescent 8,000 years ago.

“It’s similar to the ‘Neanderthals did not make art’ fable, which was entirely based on absence of evidence,

Likewise, the overwhelming scientific consensus used to hold that modern humans were superior in key ways, including their ability to innovate, communicate and adapt to different environments.

Nonsense, all of it.”

makes it clear that arguments about the wealth of mobiliary art in, say, the Upper Paleolithic of Germany or France by comparison to southern Europe, are largely nonsensical and an artifact of tundra (where there are no trees and you use ivory, which is archaeologically visible) versus open forest environments

The Shigir Idol, named for the bog near Kirovgrad in which it was found, is presumed to have rested on a rock base for perhaps two or three decades before toppling into a long-gone paleo-lake, where the peat’s antimicrobial properties protected it like a time capsule.

“It was not a scientific construction,”

“The rings tell us that trees were growing very slowly, as the temperature was still quite cold,”

Dr. Terberger respectfully disagrees.

“The landscape changed, and the art — figurative designs and naturalistic animals painted in caves and carved in rock — did, too, perhaps as a way to help people come to grips with the challenging environments they encountered.”

And what do the engravings mean? Svetlana Savchenko, the artifact’s curator and an author on the study, speculates that the eight faces may well contain encrypted information about ancestor spirits, the boundary between earth and sky, or a creation myth.

The temple’s stones were carved around 11,000 years ago, which makes them 1,500 years younger than the Shigir Idol.

One could wonder how many similar pieces have been lost over time due to poor preservation conditions.”

The similarity of the geometric motifs to others across Europe in that era, he added, “is evidence of long-distance contacts and a shared sign language over vast areas. The sheer size of the idol also seems to indicate it was meant as a marker in the landscape that was supposed to be seen by other hunter-gatherer groups — perhaps marking the border of a territory, a warning or welcoming sign.”

“What do you think is the hardest thing to find in the Stone Age archaeology of the Urals?”A pause: Sites?“No,” he said, sighing softly. “Funding.”