looking up, detroit faces new crisis

NYTimes | For a city that some have declared dead again and again, the talk of late here was of renaissance — of auto industry jobs growing, new companies moving into empty buildings downtown, urban gardens blooming in vacant lots.

Then came the revelation that Detroit is poised to run out of money by April and fall deep into debt by June. Now a place that had seemed to be finding its balance is reeling once more.

A formal state review of Detroit’s books — a step that could lead to the appointment of an outside emergency manager to take over the city’s finances — was announced this week. City leaders are conducting urgent meetings with labor union leaders and financial consultants in a race to cut costs and head off further intervention.

The possibility that an outside manager could come in — one who would have broader than ever powers under a rewritten state law — has stirred new concerns among financial ratings agencies and business leaders who have fresh investments in the city. City government, meanwhile, is finding itself forced to re-examine services it provides — including buses, health care and street lighting — and shed what it can no longer afford.

The crisis could not have come at a worse time.

“This state is starting to come back, the economy is starting to come back, and as long as you are out there promoting all this negativity, it’s no good for any of us,” Mayor Dave Bing said in an interview. “You don’t need Detroit against the state.”

Still, Mr. Bing, a former basketball star who built an auto-parts manufacturing company, says he also knows the risks — symbolically, financially and politically — if a city of this size reaches a point where it cannot pay debts.

“If Detroit would ever go into default, it would kill the state,” he said, quickly adding that he did not think the situation would come to that.

Already, though, Detroit is the only major American city with credit that sits beneath investment grade, experts say. With 11,000 city employees and 139 square miles of increasingly vacant land to tend to, it has struggled, year by year, deficit by deficit, to pay its bills. Once the nation’s fourth-largest city, it has seen its population drop since a high of 1.8 million in 1950 to a low last year of 714,000.

In the eyes of some leaders, this financial crisis, despite the recent positive signs from the private sector, was decades in the making: the city never shrank its operations enough to match a shrinking tax base, and it delayed its woes with borrowing, exaggerated revenue estimates and accounting shifts.

This fall, Mr. Bing warned that Detroit would run out of cash without major cuts, particularly layoffs and deep salary reductions.

how immigration and multiculturalism destroyed detroit

BritishFreedom | For 15 years, from the mid 1970's to 1990, I worked in Detroit, Michigan. I watched it descend into the abyss of crime, debauchery, gun play, drugs, school t ruancy, car-jacking, gangs, and human depravity. I watched entire city blocks burned out. I watched graffiti explode on buildings, cars, trucks, buses, and school yards. Trash everywhere!

Detroiters walked through it, tossed more into it, and ignored it. Tens of thousands, and then hundreds of thousands today exist on federal welfare, free housing, and food stamps!

With Aid to Dependent Children, minority women birthed eight to 10, and in one case, one woman birthed 24 children as reported by the Detroit Free Press, all on American taxpayer dollars.

A new child meant a new car payment, new TV, and whatever mom wanted. I saw Lyndon Baines Johnson's 'Great Society' flourish in Detroit . If you give money for doing no thing, you will get more hands out taking money for doing nothing.

Mayor Coleman Young, perhaps the most corrupt mayor in America , outside of Richard Daley in Chicago , rode Detroit down to its knees... He set the benchmark for cronyism, incompetence, and arrogance. As a black man, he said, "I am the MFIC." The IC meant "in charge".


You can figure out the rest. Detroit became a majority black city with 67 percent African-Americans.

As a United Van Lines truck driver for my summer job from teaching math and science, I loaded hundreds of American families into my van for a new life in another city or state.

Detroit plummeted from 1.8 million citizens to 912,000 today. At the same time, legal and illegal immigrants converged on the city, so much so, that Muslims number over 300,000. Mexicans number 400,000 throughout Michigan , but most work in Detroit . As the whites moved out, the Muslims moved in.

As the crimes became more violent, the whites fled. Finally, unlawful Mexicans moved in at a torrid pace. Detroit suffers so much shoplifting that grocery stores no longer operate in many inner city locations. You could cut the racial tension in the air with a knife!

Detroit may be one of our best examples of multiculturalism: pure dislike, and total separation from America .

Today, you hear Muslim calls to worship over the city like a new American Baghdad with hundreds of Islamic mosques in Michigan , paid for by Saudi Arabia oil money. High school flunk out rates reached 76 percent last June, according to NBC's Brian Williams. Classrooms resemble more foreign countries than America . English? Few speak it! The city features a 50 percent illiteracy rate and growing.


Unemployment hit 28.9 percent in 2009 as the auto industry vacated the city. In Time Magazine's October 4, 2009, "The Tragedy of Detroit: How a great city fell, and how it can rise again," I choked on the writer's description of what happened. "If Detroit had been ravaged by a hurricane, and submerged by a ravenous flood, we'd know a lot more about it," said Daniel Okrent. "If drought, and carelessness had spread brush fires across the city, we'd see it on the evening news every night."

Earthquake, tornadoes, you name it, if natural disaster had devastated the city that was once the living proof of American prosperity, the rest of the country might take notice.

But Detroit, once our fourth largest city, now 11th, and slipping rapidly, has had no such luck. Its disaster has long been a slow unwinding that seemed to remove it from the rest of the country.

Even the death rattle that in the past year emanated from its signature industry brought more attention to the auto executives than to the people of the city, who had for so long been victimized by their dreadful decision making."

As Coleman Young's corruption brought the city to its knees, no amount of federal dollars could save the incredible payoffs, kick backs, and illegality permeating his administration. I witnessed the city's death from the seat of my 18-wheeler tractor trailer because I moved people out of every sector of decaying Detroit .

"By any quantifiable standard, the city is on life support. Detroit 's treasury is $300 million short of the funds needed to provide the barest municipal services," Okrent said. "The school system, which six years ago was compel led by the teachers' union to reject a philanthropist's offer of $200 million to build 15 small, independent charter high schools, is in receivership. The murder rate is soaring, and 7 out of 10 remain unsolved. Three years after Katrina devastated New Orleans , unemployment in that city hit a peak of 11%. In Detroit , the unemployment rate is 28.9%.

That's worth spelling out: twenty-eight point nine percent." At the end of Okrent's report, and he will write a dozen more about Detroit, he said, "That's because the story of Detroit is not simply one of a great city's collapse, it's also about the erosion of the industries that helped build the country we know today. The ultimate fate of Detroit will reveal much about the character of America in the 21st century. If what was once the most prosperous manufacturing city in the nation has been brought to its knees, what does that say about our recent past? And if it can't find a way to get up, what does that say about our future?"

As you read in my book review of Chris Steiner's book, "$20 Per Gallon", the auto industry won't come back. Immigration will keep pouring more, and more uneducated third world immigrants from the Middle East into Detroit , thus creating a beachhead for Islamic hegemony in America . If 50 percent illiteracy continues, we will see more homegrown terrorists spawned out of the Muslim ghettos of Detroit . Illiteracy plus Islam equals walking human bombs.

You have already seen it in Madrid, Spain; London, England; and Paris, France with train bombings, subway bombings and riots. As their numbers grow, so will their power to enact their barbaric Sharia Law that negates republican forms of government, first amendment rights, and subjugates women to the lowest rungs on the human ladder. We will see more honor killings by upset husbands, fathers, and brothers that demand subjugation by their daughters, sisters and wives. Muslims prefer beheadings of women to scare the hell out of any other members of their sect from straying. Multiculturalism: what a perfect method to kill our language, culture, country, and way of life.

the big lie

Video - Newt Gingrich's strange relationship with Fannie and Freddie

NYTimes | You begin with a hypothesis that has a certain surface plausibility. You find an ally whose background suggests that he’s an “expert”; out of thin air, he devises “data.” You write articles in sympathetic publications, repeating the data endlessly; in time, some of these publications make your cause their own. Like-minded congressmen pick up your mantra and invite you to testify at hearings.

You’re chosen for an investigative panel related to your topic. When other panel members, after inspecting your evidence, reject your thesis, you claim that they did so for ideological reasons. This, too, is repeated by your allies. Soon, the echo chamber you created drowns out dissenting views; even presidential candidates begin repeating the Big Lie.

Thus has Peter Wallison, a resident scholar at the American Enterprise Institute, and a former member of the Financial Crisis Inquiry Commission, almost single-handedly created the myth that Fannie Mae and Freddie Mac caused the financial crisis. His partner in crime is another A.E.I. scholar, Edward Pinto, who a very long time ago was Fannie’s chief credit officer. Pinto claims that as of June 2008, 27 million “risky” mortgages had been issued — “and a lion’s share was on Fannie and Freddie’s books,” as Wallison wrote recently. Never mind that his definition of “risky” is so all-encompassing that it includes mortgages with extremely low default rates as well as those with default rates nearing 30 percent. These latter mortgages were the ones created by the unholy alliance between subprime lenders and Wall Street. Pinto’s numbers are the Big Lie’s primary data point.

Allies? Start with Congressional Republicans, who have vowed to eliminate Fannie and Freddie — because, after all, they caused the crisis! Throw in The Wall Street Journal’s editorial page, which, on Wednesday, published one of Wallison’s many articles repeating the Big Lie. It was followed on Thursday by an editorial in The Journal making essentially the same point. Repetition is all-important to spreading a Big Lie.

In Wallison’s article, he claimed that the charges brought by the Securities and Exchange Commission against six former Fannie and Freddie executives last week prove him right. This is another favorite tactic: He takes a victory lap whenever events cast Fannie and Freddie in a bad light. Rarely, however, has his intellectual dishonesty been on such vivid display. In fact, what the S.E.C.’s allegations show is that the Big Lie is, well, a lie.

Central to Wallison’s argument is that the government’s effort to encourage homeownership among low- and moderate-income Americans is what led to the crisis. Fannie and Freddie, which were required by law to meet certain “affordable housing mandates,” were the primary instruments of that government policy; their need to meet those mandates, says Wallison, is what caused them to dive so heavily into those “risky” mortgages. And because they were powerful forces in the housing market, their entry into subprime dragged along the rest of the mortgage industry.

But the S.E.C. complaint makes almost no mention of affordable housing mandates. Instead, it charges that the executives were motivated to begin buying subprime mortgages — belatedly, contrary to the Big Lie — because they were trying to reclaim lost market share, and thus maximize their bonuses.

As Karen Petrou, a well-regarded bank analyst, puts it: “The S.E.C.’s facts paint a picture in which it wasn’t high-minded government mandates that did [Fannie and Freddie] wrong, but rather the monomaniacal focus of top management on market share.” As I wrote on Tuesday, Fannie and Freddie, rather than leading the housing industry astray, got into riskier mortgages only after the horse was out of the barn. They were becoming irrelevant in the most profitable segment of the market — subprime. And that they couldn’t abide.

(The S.E.C., I should note, had its own criticism of my column, saying that I conflated its allegations regarding the lack of disclosure of subprime mortgages, with an entirely different set of charges it has brought regarding disclosure of so-called Alt-A loans. I still maintain that the S.E.C.’s charges are weak, and that the agency brought the case in part for political reasons: how better to curry favor with House Republicans than to go after former Fannie and Freddie executives?)

Three years after the financial crisis, the country would be well served by a real debate about the role of government in housing. Should the government be helping low- and moderate-income Americans own their own homes? If so, is there an acceptable level of risk? If not, how do we recast the American dream?

To have that debate, though, we need a clear understanding of what role the government’s affordable-housing goals did — and did not — play in the crisis. And that is impossible as long as the Big Lie holds sway.

Which, now that I think of it, may be the whole point of the exercise.

Occupy our homes

Occupyourhomes | Everyone deserves to have a roof over their head and a place to call home. Millions of Americans have worked hard for years for the opportunity to own their own home; for others, it remains a distant goal. For all of us, having a decent place to live for ourselves and our families is the most fundamental part of the American dream, a source of security and pride.

In 2008, we discovered bankers and speculators had been gambling with our most valuable asset, our homes--betting against us and destroying trillions of dollars of our wealth. Now, because of the foreclosure crisis Wall Street banks created with their lies and greed, millions of Americans have lost their homes, and one in four homeowners are currently underwater on their mortgage.

Not only do we have thousands of people without homes, we have thousands of homes without people. Boarded-up houses are sitting empty--increasing crime, lowering the value of other homes in the neighborhood, erasing the wealth that lifts families into the middle class.

The Occupy Wall Street movement and brave homeowners around the country are coming together to say, "Enough is enough." We, the 99%, are standing up to Wall Street banks and demanding they negotiate with homeowners instead of foreclosing on them.

Occupy Our Homes is a movement that supports Americans who stand up to their banks and fight for their homes. We believe everyone has a right to decent, affordable housing. We stand in solidarity with the Occupy Wall Street movement and with community organizations who help the 99% fight for a place to call home.

remember the season and go contribute to your local occupation

Video - Occupy Albany march on governor's mansion.

FDL | Yesterday we published a list of 61 active occupation encampments across the country that are planning to be there through the winter. People were helpful in the comments in identifying and documenting 5 more:

• Occupy Everett WA
• Occupy Kansas City MO
• Occupy Northampton MA
• Occupy Las Cruces NM
• Occupy Salt Lake City UT

We need a photo or video taken within the last week of an occupation showing the tents, or a link to a recent media report on the tent encampment in order to include them on the list.

On that list we did not include encampments with their status in flux, that are currently fighting the city’s attempt to evict them:

1. Albany, NY
2. Ashville, NC
3. Eugene, OR
4. Louisville, KY
5. Portland ME
6. San Antonio TX
7. Santa Fe NM
8. Tulsa OK
9. Missoula MT

Eugene just got their eviction notice, so they move from yesterday’s list to this list. That brings the total number of encampments we’ve been able to document in the past week that are planning to be there through the winter to 65.

We hope that people in the communities where the occupations are threatened with eviction will make an extra effort to be supportive. A few people can make a difference if they’re willing to make their voices heard, and many have stepped in and been helpful in finding the occupiers other places to encamp. These encampments are doing some really great work (see Occupy Albany video above).

We keep this list up to date by staying in regular contact with FDL members who act as liaisons to over 70 occupations across the country, bringing them food and cold weather supplies. What we find is that many occupations decide to break up in the face of a city crackdown, and make the calculation that it will give them more time to engage in activism if they don’t have an encampment. This almost never happens.

As RF Shunt noted in his perceptive diary, the encampments serve as giant billboards and inspire everyone. They move local progressive groups to action and galvanize a community’s spirit, making them believe that change is possible. When the tent cities go away, many occupy groups still engage in really valuable and smart activism. But over time it’s a lot harder to keep people engaged, and as general assemblies move from location to location, many people drift away because they just don’t know where to go any more.

If you’ve got a local occupation with an encampment, please consider stopping by and lending your support. What the campers are doing out there gives hope to everyone. Often times I don’t think people realize how hard it is for them to do what they’re doing, or how important it is for all of us that they stay there. Which is why so much money is being spent to crush them.

List of Active Occupy Encampments Across the Country – Now at 61

Video - the Occupy Movement celebrates 3 months and going.

FDL | Although the media has grown bored with the Occupy movement and are declaring it over, OccupySupply has verified the existence of 61 encampments across the country. We are listing them below, along with links to photos and videos that demonstrate what they look like today.

The FDL Membership Program now has 110 liaisons at over 70 occupations across the country who report back to us on the status of their occupations twice each week. That’s how we determine which occupations OccupySupply will send cold weather gear to every day.

OccupySuply shipped more stuff out last week alone than we did in the entire first month, and the demand is only increasing.

So we thought we’d try to drive a stake through the heart of the “Occupy is Dead” narrative by publishing our working list, which is consistently more up-to-date than any I’ve seen. These are occupations with encampments only — there are many, many more vibrant occupations that are doing tremendous community activism despite the lack of an encampment.

» Please consider donating $10 or more to help us continue to meet the demands of the now 70+ occupations we serve with the Occupy Supply fund. As always, 100% of your donations to the fund will go to purchase and distribute the supplies they need to make it through the winter and beyond.

1	Occupy Anchorage	Igloos!
2	Occupy Atlanta	Re-occupied Woodruff Park after the raid, stopped foreclosure this week.
3	Occupy Austin	Nice story in Daily Texan about OccupySupply helping them prepare for winter
4	Occupy Berkeley	90 tents
5	Occupy Birmingham	Marched with Alabama civic & religious leaders to protest state immigration law
6	Occupy Bloomington	Longest running occupation?
7	Occupy Boise	Highs in the 30s, lows in the teens, but hanging in there
8	Occupy Boulder	Working with city on permit
9	Occupy Buffalo	Just opened 2nd encampment
10	Occupy Cedar Rapids	Says they have a stable location through the winter
11	Occupy Chapel Hill	Expanding, building bridges with local congregations
12	Occupy Charlotte	Growing, now 30 tents
13	Occupy Claremont	City council may intervene, but police say they’re not breaking any laws
14	Occupy Cleveland	Recently worked with Youngstown & Ashtabula to encamp vs. foreclosure
15	Occupy Columbia SC	Won their court battle; judge says they can stay
16	Occupy Dover DE	Just celebrated their 1 month anniversary
17	Occupy Kstreet	Expanding to local black churches
18	Occupy Lancaster PA	Renewing the permit that expires January 1
19	Occupy Delaware	Won a ruling from a judge that recognized the tent city as a form of protected speech.
20	Occupy DesMoines	Launching Occupy the Caucus, urging people to vote “uncommitted”
21	Occupy Erie	Re-occupied the gazebo yesterday, looking good in OccupySupply
22	Occupy Eugene	City installed lights at request of campers, increasing budget to help homeless
23	Occupy Fairbanks	Yes, there’s an Occupy Fairbanks. No shit.
24	Occupy Freedom Plaza	Feed 140 people each day
25	Occupy FtWayne	Flash mob at the Glenbrook Mall last weekend reminding people to shop local
26	Occupy Gainesville	Organizing Florida occupations for upcoming FL legislative session
27	Occupy Harrisburg	Organizing around state redistricting
28	Occupy Houston	Celebrated International Migrants Day by protesting prison industrial complex
29	Occupy Huntsville AL	City gave them a spot
30	Occupy IowaCity	Mic checked Newt Gingrich last week
31	Occupy Lancaster PA	Holding toy and book drive for children of the community
32	Occupy Las Vegas	Protesting at auctions of foreclosed homes seized without paperwork
33	Occupy Lincoln	Tent town in Centennial Mall going strong
34	Occupy Little Rock	Built a geodesic dome
35	Occupy Madison	Recently had its first marriage proposal
36	Occupy Memphis	Held Saturday march to mark 1 year since Mohamed Bouazizi lit himself on fire in Tunisia
37	Occupy Miami	Just celebrated 2 month anniversary
38	Occupy Milwaukee	Immigration groups recently loaned them office space
39	Occupy Monterey	Holding a series of public community educational talks
40	Occupy Nashville	Getting tremendous community support
41	Occupy New Haven	On private property by agreement with managers
42	Occupy Newark	City recently lifted ban on overnight encampments
43	Occupy Norman OK	Just started this week
44	Occupy Orange County	Held a mock funeral for the Bill of Rights
45	Occupy Palm Beach	Protesting wealth inequality in rich neighborhoods
46	Occupy Phoenix	Demonstrating against Joe Arpaio’s tasering of Latino Marine vet that left him brain dead
47	Occupy Pittsburgh	Protesting the bilking of millions of dollars from schools & local govt at US Steel Tower
48	Occupy Providence	Approx. 60 overnight sleepers in Burnside Park
49	Occupy Raleigh	Property owner & city say they can stay
50	Occupy Sacramento	Recently occupied Clear Channel
51	Occupy Rochester	Just received AFL-CIO Rochester Labor Council’s Community Solidarity Award
52	Occupy San Jose	Just re-occupied this week
53	Occupy San Luis Obispo	Denied the use of tents but still staying each night
54	Occupy Syracuse	Recently erected a triple-walled Army surplus tent and plan to stay for the winter
55	Occupy Tacoma	Mic check to OccupySupply on Dec 15!
56	Occupy Talahassee	Will present objectives of Florida occupations to state legislature on January 10
57	Occupy Tampa	Set up last Saturday in Voice of Freedom Park
58	Occupy Trenton	Protesting Chris Christie’s charter school plan in Dept. of Ed offices
59	Occupy Tucson	One of the largest occupations still going
60	Occupy Walton OR	Small Oregon town trying to save their post office
61	Occupy Winnepeg	Say they are “not going anywhere”

do thoughts have a language of their own?

NewScientist | What is the relationship between language and thought? The quest to create artificial intelligence may have come up with some unexpected answers

THE idea of machines that think and act as intelligently as humans can generate strong emotions. This may explain why one of the most important accomplishments in the field of artificial intelligence has gone largely unnoticed: that some of the advances in AI can be used by ordinary people to improve their own natural intelligence and communication skills.

Chief among these advances is a form of logic called computational logic. This builds and improves on traditional logic, and can be used both for the original purpose of logic - to improve the way we think - and, crucially, to improve the way we communicate in natural languages, such as English. Arguably, it is the missing link that connects language and thought.

According to one school of philosophy, our thoughts have a language-like structure that is independent of natural language: this is what students of language call the language of thought (LOT) hypothesis. According to the LOT hypothesis, it is because human thoughts already have a linguistic structure that the emergence of common, natural languages was possible in the first place.

The LOT hypothesis contrasts with the mildly contrary view that human thinking is actually conducted in natural language, and thus we could not think intelligently without it. It also contradicts the ultra-contrary view that human thinking does not have a language-like structure at all, implying that our ability to communicate in natural language is nothing short of a miracle.

Research in AI lends little support to the first view, and some support to the second. But if we want to improve how we communicate in natural language, the AI version of the LOT hypothesis comes into its own, offering us a detailed analysis we can use as a guide.

Using this guide we can then try to express ourselves in a form of natural language that is closer to the LOT. This will make it easier for others to understand our communications because they will require less effort to translate them into thoughts of their own. But to fully exploit the guide, we need to understand the nature of the LOT and the relationship between it and natural language.

is free will an illusion?

ScientificAmerican | It seems obvious to me that I have free will. When I have just made a decision, say, to go to a concert, I feel that I could have chosen to do something else. Yet many philosophers say this instinct is wrong. According to their view, free will is a figment of our imagination. No one has it or ever will. Rather our choices are either determined—necessary outcomes of the events that have happened in the past—or they are ­random.

Our intuitions about free will, however, challenge this nihilistic view. We could, of course, simply dismiss our intuitions as wrong. But psychology suggests that doing so would be premature: our hunches often track the truth pretty well [see “The Powers and Perils of Intuition,” by David G. Myers; Scientific American Mind, June/July 2007]. For example, if you do not know the answer to a question on a test, your first guess is more likely to be right. In both philosophy and science, we may feel there is something fishy about an argument or an experiment before we can identify exactly what the problem is.

The debate over free will is one example in which our intuitions conflict with scientific and philosophical arguments. Something similar holds for intuitions about consciousness, morality, and a host of other existential concerns. Typically philosophers deal with these issues through careful thought and discourse with other theorists. In the past decade, however, a small group of philosophers have adopted more data-driven methods to illuminate some of these confounding questions. These so-called experimental philosophers administer surveys, measure reaction times and image brains to understand the sources of our instincts. If we can figure out why we feel we have free will, for example, or why we think that consciousness consists of something more than patterns of neural activity in our brain, we might know whether to give credence to those feelings. That is, if we can show that our intuitions about free will emerge from an untrustworthy process, we may decide not to trust those beliefs.

Read Nichols, S. forthcoming paper The Indeterminist Intuition: Source and Status. The Monist.

it's lonely out there – the evolutionary explanation for the fermi paradox

Baen | What kick-started intelligence in humans? Given that our powerful brains have so many disadvantages and not much payback in terms of survival, at least in the early stages before technology, why was increasing brain power been selected for, generation by generation, until the evolution of the human mind?

The primary selection pressure is survival but the second is reproductive success: Darwin pointed this out in the Origin of Species. Complex animals reproduce sexually so success involves mating. Vertebrates have complex signalling systems and behavior to persuade another individual to choose them as a suitable partner. This can result in the evolution of anatomical features that are neutral or even disadvantageous to survival. For example, the growth of antlers in deer have a high metabolic cost, offer little survival advantage, but are essential for a male deer to intimidate competitors to win the hooves of fair deer maidens.

The more complicated an organism's reproductive system the more likely the sexes of a species are to have different reproductive strategies, and the mammalian system is very complicated. The best explanation of human intelligence is that it is the result of sexual selection by women. Men tend to be attracted to women who are fit, healthy, young and not yet pregnant (slim waist).

These characteristics are not unimportant to women (well, except the last) but women get stuck with the baby so, given that people are social animals, women are attracted to high status men who will be able to provide support for them and their children. In a social animal, high status revolves around sophisticated interaction, for which intelligence is an advantage because of the need to manipulate, and enjoy good relations with, other members of society.

Even our verbal facility is probably the result of female sexual selection. In British English, boys attempt to "chat up" girls at parties. If women kept selecting for intelligence in men then this would overcome any counter-survival effect of "wasting" resources on high energy brains.

But note that the exact choice of a sexual selection feature is a haphazard process. Women might have selected on developing an oversized red nose, the ability to hop around in a circle with effortless grace, or antlers. Female birds often select on feather coloration patterns and there is evidence that therapod dinosaurs had similar behavior. Bipedal therapods were mostly predators, like wolves or tigers, whereas we are social omnivores and that is probably the key difference.

The take home message is that intelligence is a rather unlikely end result that depends on a conjunction of haphazard ecological and evolutionary features.

Maybe an intelligent species of social therapod dinosaur might still have evolved if the Cretaceous Great extinction had not happened — but major catastrophes from local events up to mass extinctions are a regular feature of life on Earth.

Species survival over time, particularly for a large organism, is to a large extent a matter of sheer luck. We almost didn't make it. About seventy-five-thousand years ago there was a catastrophe, the Toba super-volcanic eruption. The Toba Event seems to have taken human beings to the very brink of extinction. Genetic evidence suggests that we were reduced to between one and ten thousand breeding pairs. All modern humans are genetically closely related, which is why inbreeding is so very dangerous for us.

Toba was a volcanic pinprick compared to the Deccan Traps associated with the Cretaceous great extinction, or the Siberian Traps with the larger Permian extinctions, but it was enough to nearly do for a large animal geographically restricted to Africa. Toba may even have given the kick needed to evolve the human mind and civilization, but our survival was touch and go.

And here, I think, is the explanation for the Fermi Paradox. There does not need to be anything special about Earth or H. sapiens. Applying the Principle of Mediocrity, the universe probably teems with life, quite complex life. But intelligent life is simply unlikely because the evolutionary dice are rigged against it. It is very unlikely that a large complex animal, with the right sexual selection system, will survive long enough for circumstances to kick start the path to a technological civilization.

You don't need a special, unique planet to evolve an intelligent organism. You just need a lot of life on a lot of planets and one or two will win the lottery no matter how unlikely the probability. It's just a matter of random luck. There is nothing special about someone who wins the national lottery.

I suspect it is the "probability of evolving intelligent life" that is the key variable that governs the Drake Equation: the probability must be close to zero. Should we survive long enough to break free of our solar system cradle, the last variable, I suspect we will find life in abundance but will probably never ever meet intellectual peers.

It's going to be lonely out there.

Social Insect Societies, Human Societies, and Religion - Redux

Magnus Magnuson | Two Recent Middle-Eastern Religions Involve 50% of Humanity. In many scientifically advanced Christian countries people are still taught that a super being created the universe and humans especially (in its image). And that this being, about 2000 years ago, worrying about their situation decided on a remedy that included having a woman in the Middle-East made pregnant.

Why do millions of educated modern humans apparently believe that gods exist and that they frequently intervene crucially in everyday life – often quickly or immediately on personal demand (prayer)? Why do many states encourage such believes?

Extreme conditions and mental illness facilitate this through realistic hallucinations and delusions, but what may be further reasons for the emergence of mass-belief in common gods.

Brain Power and Mass-Social Emergence - is excessive cognitive power a hindrance?

The algorithms of caste development and behavior are the first level in the construction of a superorganism. These specialists, working as a functional unit, are guided by sets of behavioral rules..”

Nothing in the brain of a worker ant represents a blueprint of the social order. Colony life is the product of self-organization. A number of different interacting sub-sets of specialists each have a few behaviors with algorithms regarding their use in a few particular circumstances (job descriptions). Citizens often have specialized body-parts for tasks such as communication (interaction).

If mass-social self-organization requires countless predictable interactions between simple algorithms, could superfluous cognitive abilities be a disturbance?

Deceptions concerning essential aspects of life seem crucial in the two principal modern religions. Should some people have the right to deceive others concerning, for example, the existence of an afterlife with gratifying or terrifying post-life consequences of their lifetime actions?

If so, who or what gives them this right?

Should such deception and gullibility be encouraged also in the 21st century after possibly the most spectacular increases ever in human knowledge? Is this deception compatible with basic human rights and democracy? Religion typically serves the hierarchy, that is, the ruling sub-set of individuals through blocking or misleading cognitive power. Deception is an essential part of religion which exploits human innocence (gullibility, ignorance and trust). Possibly this is one consequence when highly evolved primates evolves a mass-social lifestyle like the proteins in its cells and like social insects.

pseudo-scientific mouthbreathing in the nytimes

Nature | Stepwise evolution of stable sociality in primates - Although much attention has been focused on explaining and describing the diversity of social grouping patterns among primates1, 2, 3, less effort has been devoted to understanding the evolutionary history of social living4. This is partly because social behaviours do not fossilize, making it difficult to infer changes over evolutionary time. However, primate social behaviour shows strong evidence for phylogenetic inertia, permitting the use of Bayesian comparative methods to infer changes in social behaviour through time, thereby allowing us to evaluate alternative models of social evolution. Here we present a model of primate social evolution, whereby sociality progresses from solitary foraging individuals directly to large multi-male/multi-female aggregations (approximately 52 million years (Myr) ago), with pair-living (approximately 16 Myr ago) or single-male harem systems (approximately 16 Myr ago) derivative from this second stage. This model fits the data significantly better than the two widely accepted alternatives (an unstructured model implied by the socioecological hypothesis or a model that allows linear stepwise changes in social complexity through time). We also find strong support for the co-evolution of social living with a change from nocturnal to diurnal activity patterns, but not with sex-biased dispersal. This supports suggestions that social living may arise because of increased predation risk associated with diurnal activity. Sociality based on loose aggregation is followed by a second shift to stable or bonded groups. This structuring facilitates the evolution of cooperative behaviours5 and may provide the scaffold for other distinctive anthropoid traits including coalition formation, cooperative resource defence and large brains.

Somehow the model published for consideration in Nature got lost in translation to become the conclusion trumpeted by human biodiversity hack Nicholas Wade in the NYTimes thus;

NYTimes | Genes Play Major Role in Primate Social Behavior, Study Finds - The Oxford survey confirms that the structure of human society, too, is likely to have a genetic basis, since humans are in the primate family, said Bernard Chapais, an expert on human social evolution at the University of Montreal.

“Evolutionary change in any particular lineage is highly constrained by the lineage’s phylogenetic history,” Dr. Chapais said, referring to the evolutionary family tree. “This reasoning applies to all species, including ours. But in humans, cultural variation hides both the social unity of humankind and its biological foundation.”

Human multifamily groups may have arisen from the gorilla-type harem structure, with many harems merging together, or from stable breeding bonds replacing sexual promiscuity in a chimpanzee-type society, Dr. Chapais said.

In his book “Primeval Kinship” (Harvard, 2008), he describes a further stage in human social evolution that occurred when individual bands allied with those with whom they exchanged daughters. The bands in such a marital exchange system formed a tribe, taking human society to a level of organization beyond that of chimpanzee society.

With chimps, territorially based bands also exchange daughters to avoid incest but continue to fight with one another to the death because the males cannot recognize their kinship with relatives in neighboring bands. Fist tap BD/Fist tap Nana.

the social brain hypothesis and its implications for social evolution

PubMed | The social brain hypothesis was proposed as an explanation for the fact that primates have unusually large brains for body size compared to all other vertebrates: Primates evolved large brains to manage their unusually complex social systems. Although this proposal has been generalized to all vertebrate taxa as an explanation for brain evolution, recent analyses suggest that the social brain hypothesis takes a very different form in other mammals and birds than it does in anthropoid primates. In primates, there is a quantitative relationship between brain size and social group size (group size is a monotonic function of brain size), presumably because the cognitive demands of sociality place a constraint on the number of individuals that can be maintained in a coherent group. In other mammals and birds, the relationship is a qualitative one: Large brains are associated with categorical differences in mating system, with species that have pairbonded mating systems having the largest brains. It seems that anthropoid primates may have generalized the bonding processes that characterize monogamous pairbonds to other non-reproductive relationships ('friendships'), thereby giving rise to the quantitative relationship between group size and brain size that we find in this taxon. This raises issues about why bonded relationships are cognitively so demanding (and, indeed, raises questions about what a bonded relationship actually is), and when and why primates undertook this change in social style.

one-third of young U.S. adults have been arrested: study

Reuters | Close to one in three teens and young adults get arrested by age 23, suggests a new study that finds more of them are being booked now than in the 1960s.

Those arrests are for everything from underage drinking and petty theft to violent crime, researchers said. They added that the increase might not necessarily reflect more criminal behavior in youth, but rather a police force that's more apt to arrest young people than in the past.

"The vast majority of these kids will never be arrested again," said John Paul Wright, who studies juvenile delinquency at the University of Cincinnati's Institute of Crime Science, but wasn't involved in the new study.

"The real serious ones are embedded in the bigger population of kids who are just picking up one arrest," he told Reuters Health.

Though violent crimes might be on the rarer end of the spectrum of offenses, the study's lead author pointed to the importance of catching the early warning signs of criminal behavior in adolescents and young adults, saying that pediatricians and parents can both play a role in turning those youngsters around.

Robert Brame of the University of North Carolina at Charlotte and his colleagues analyzed data from a nationally-representative youth survey conducted between 1997 and 2008.

A group of more than 7,000 adolescents age 12 to 16 in the study's first year filled out the annual surveys with questions including if and when they had ever been arrested.

At age 12, less than one percent of participants who responded had been arrested. By the time they were 23, that climbed to 30 percent with a history of arrest.

That compares to an estimated 22 percent of young adults who had been arrested in 1965, from a past study.

"It was certainly higher than we expected based on what we saw in the 1960s, but it wasn't dramatically higher," said Brame.

Arrests in adolescents are especially worrisome, he told Reuters Health, because many repeat offenders start their "criminal career" at a young age.

The researchers said it seems that the criminal justice system has taken to arresting both the young and old more than it did in the past, when fines and citations might have been given to some people who are now arrested.

"If (police) find kids that are intoxicated or they have pulled over someone intoxicated... now, nine times out of 10 they're going to make an arrest," Wright told Reuters Health.

"We do have to question if arrest is an appropriate intervention in all circumstances, or if we need to rethink some of the policies we have enacted."

He pointed out that young people who have an arrest on their record might have more trouble getting jobs in the future. It's one thing if that's because they were involved in a violent crime, he continued, but another if their offence was non-violent, like drinking underage or smoking marijuana.

"Arrest does have major social implications for people as they transition from adolescence to adulthood," Wright said.

While the report didn't ask youth why they had been arrested, Brame said that common offenses in that age group also include stealing, vandalizing and arson.

For most minor offenses, teens and young adults will get a term of probation or another minor penalty, he said. The most serious adolescent offenders and those with a prior record could be prosecuted as adults and end up getting a prison sentence.

Brame said that being poor, struggling in school and having a difficult home life have all been linked to a higher risk of arrest in that age group.

He and his colleagues wrote in Pediatrics on Monday that other warning signs of delinquent behavior include early instances of aggression and bullying, hyperactivity and delayed development.

Pediatricians might be able to recognize those warning signs more clearly than parents, and can point kids toward resources to help keep them out of trouble, such as counseling services, Brame said.

"We urge that parents who are concerned about their kids' well-being, that they get those kids in to see a pediatrician on a regular basis so the pediatrician can do the things they're trained to do."

SOURCE: bit.ly/jsoh2P Pediatrics, online December 19, 2011.

six reasons young christians leave church

Barna | Many parents and church leaders wonder how to most effectively cultivate durable faith in the lives of young people. A five-year project headed by Barna Group president David Kinnaman explores the opportunities and challenges of faith development among teens and young adults within a rapidly shifting culture. The findings of the research are included in a new book by Kinnaman titled You Lost Me: Why Young Christians are Leaving Church and Rethinking Church.

The research project was comprised of eight national studies, including interviews with teenagers, young adults, parents, youth pastors, and senior pastors. The study of young adults focused on those who were regular churchgoers Christian church during their teen years and explored their reasons for disconnection from church life after age 15.

No single reason dominated the break-up between church and young adults. Instead, a variety of reasons emerged. Overall, the research uncovered six significant themes why nearly three out of every five young Christians (59%) disconnect either permanently or for an extended period of time from church life after age 15.

Reason #1 – Churches seem overprotective.
A few of the defining characteristics of today's teens and young adults are their unprecedented access to ideas and worldviews as well as their prodigious consumption of popular culture. As Christians, they express the desire for their faith in Christ to connect to the world they live in. However, much of their experience of Christianity feels stifling, fear-based and risk-averse. One-quarter of 18- to 29-year-olds said “Christians demonize everything outside of the church” (23% indicated this “completely” or “mostly” describes their experience). Other perceptions in this category include “church ignoring the problems of the real world” (22%) and “my church is too concerned that movies, music, and video games are harmful” (18%).

Reason #2 – Teens’ and twentysomethings’ experience of Christianity is shallow.
A second reason that young people depart church as young adults is that something is lacking in their experience of church. One-third said “church is boring” (31%). One-quarter of these young adults said that “faith is not relevant to my career or interests” (24%) or that “the Bible is not taught clearly or often enough” (23%). Sadly, one-fifth of these young adults who attended a church as a teenager said that “God seems missing from my experience of church” (20%).

Reason #3 – Churches come across as antagonistic to science.
One of the reasons young adults feel disconnected from church or from faith is the tension they feel between Christianity and science. The most common of the perceptions in this arena is “Christians are too confident they know all the answers” (35%). Three out of ten young adults with a Christian background feel that “churches are out of step with the scientific world we live in” (29%). Another one-quarter embrace the perception that “Christianity is anti-science” (25%). And nearly the same proportion (23%) said they have “been turned off by the creation-versus-evolution debate.” Furthermore, the research shows that many science-minded young Christians are struggling to find ways of staying faithful to their beliefs and to their professional calling in science-related industries.

Reason #4 – Young Christians’ church experiences related to sexuality are often simplistic, judgmental.
With unfettered access to digital pornography and immersed in a culture that values hyper-sexuality over wholeness, teen and twentysometing Christians are struggling with how to live meaningful lives in terms of sex and sexuality. One of the significant tensions for many young believers is how to live up to the church's expectations of chastity and sexual purity in this culture, especially as the age of first marriage is now commonly delayed to the late twenties. Research indicates that most young Christians are as sexually active as their non-Christian peers, even though they are more conservative in their attitudes about sexuality. One-sixth of young Christians (17%) said they “have made mistakes and feel judged in church because of them.” The issue of sexuality is particularly salient among 18- to 29-year-old Catholics, among whom two out of five (40%) said the church’s “teachings on sexuality and birth control are out of date.”

Reason #5 – They wrestle with the exclusive nature of Christianity.
Younger Americans have been shaped by a culture that esteems open-mindedness, tolerance and acceptance. Today’s youth and young adults also are the most eclectic generation in American history in terms of race, ethnicity, sexuality, religion, technological tools and sources of authority. Most young adults want to find areas of common ground with each other, sometimes even if that means glossing over real differences. Three out of ten young Christians (29%) said “churches are afraid of the beliefs of other faiths” and an identical proportion felt they are “forced to choose between my faith and my friends.” One-fifth of young adults with a Christian background said “church is like a country club, only for insiders” (22%).

Reason #6 – The church feels unfriendly to those who doubt.
Young adults with Christian experience say the church is not a place that allows them to express doubts. They do not feel safe admitting that sometimes Christianity does not make sense. In addition, many feel that the church’s response to doubt is trivial. Some of the perceptions in this regard include not being able “to ask my most pressing life questions in church” (36%) and having “significant intellectual doubts about my faith” (23%). In a related theme of how churches struggle to help young adults who feel marginalized, about one out of every six young adults with a Christian background said their faith “does not help with depression or other emotional problems” they experience (18%).

do surveillance cameras violate students' rights?

WaPo | The Fairfax County School Board decided Thursday to permit indoor video surveillance cameras for the first time, capping a months-long debate over whether such monitoring technology is appropriate and effective for public schools.

Those for monitoring students with surveillance cameras cite student safety and crime as the deciding factors, while those against installing the cameras worry about violating students' rights.

Chat with Elizabeth Schultz about why she thinks surveillance cameras are inappropriate in public schools and violate the rights of the students.

Agree? Disagree? Submit your opinion and questions on the topic now!

as above, so below: the worldview of Lynn Margulis

realitysandwich | "In the arithmetic of life, One is always Many."

Lynn Margulis, biologist and Distinguished Professor of Geosciences, composed a grand and powerful view of the living and the non-living. Integrating the work of obscure Russian scientists, DNA pulled from cell organelles, computer-generated daisies, and the hindguts of termites, her vision was wider in scope and more profound in depth than any other coherent scientific world view. At the time of her death on November 22nd, 2011, it is a vision that remains misunderstood and misconstrued by many scientists.

Much of this view came from her uncanny ability to first lean forward and see the smallest inhabitants of the Earth; to hover there, and then to leap back at the speed of thought to conceptualize the entire planet. Lean forward, then stand back. This inner movement, this seeing from soil to space, marked a unique scientific endeavor.

This perspective was earned only through walking through diverse areas of study -- geology, genetics, biology, chemistry, literature, embryology, paleontology. Those fields, are sometimes separated by an untraversed distance at universities: they are housed in separate buildings which may as well be different worlds. In Margulis, they found agreement and discussion with each other; they were reconnected, just as they are intrinsically connected in nature.

This journey led her to emphasize in all her scientific work two phenomena -- the fusing of distinct beings into a single being: symbiosis; and the interaction of organisms and their environments to create relational "loops" that led to regulation of many Earth systems: Gaia Theory.

Taken separately these concepts have the ability to redefine, respectively, how we understand organisms and the environment.

Taken together, they can redefine our consciousness.

stuporstitions off the table of rational criticism?

Video - The four horsemen of the anti-apocalypse.

HuffPo | Richard Dawkins has challenged David Cameron’s assertion that the UK needs to return to Christian ideals, calling the Bible “an appalling moral compass”.

On Friday, in a speech to celebrate the 400th birthday of the King James Bible, the prime minister said the New Testament had helped give our country "a set of values and morals which make Britain what it is today,” adding that we should "actively stand up and defend" these Christian values.

However, speaking to Sky News, Dawkins, a renowned, scientist, author and atheist, said that Cameron is wrong to suggest the Christian Bible is going to “help us with our morals and our social wellbeing.”

“The Christian bible will help us with our literature,” said the author of The God Delusion. “It should therefore be taught in schools in literature classes, but it’s not going to help us with our morals, far from it.”

“The bible is a terrible moral compass, if you think about it. Of course, you can cherry pick the verses that you like, which means the verses that happen to coincide with our modern secular consensus, but then you need to have a rational for leaving out the ones that say stone people to death if they break the Sabbath, or if they commit adultery. It’s an appalling moral compass.”

The Oxford professor reasoned that the ideas within the new testament - of crucifixion, of redemption, of a scapegoat who is put to death for the sins of all mankind – makes it a terrible social guide. “The sooner we leave Christianity and all other religions behind, from a moral point of view the better,” he said.

In an open letter to Cameron in the December edition of the New Statesmen, Dawkins questioned the prime minister's faith and that of most politicians.

"If you are like several government ministers - of all three parties - to whom I have spoken, you are not really a religious believer yourself," he wrote. "Several ministers and ex-ministers of education whom I have met, both Conservative and Labour, don't believe in God but, to quote the philosopher Daniel Dennett, they do "believe in belief".

Speaking on Saturday, Dawkins continued on the offensive, charging Cameron with falling into a trap by calling the UK a Christian country, but concluding that it is in a "terrible moral state".

"It seems like a paradox," he quipped. "If we are in a state of moral collapse, I don’t think Christianity or Islam is going to help. What we need is a better moral sense, which we get from moral philosophy. It’s absolute nonsense to say we need faith in order to be good.”

On Friday, Professor Dawkins' fellow atheist campaigner Christopher Hitchens died aged 62, following a battle with cancer. Along with Dennett and neuroscientist Sam Harris, Hitchens and Dawkins became known as The Four Horsemen of the Anti-Apocalypse, a group of atheist thinkers and writers offering, as Hitchens put it, "a push back to religious tyranny".

song presentation induces gene expression in the songbird forebrain

PNAS | We investigated the participation of genomic regulatory events in the response of the songbird brain to a natural auditory stimulus of known physiological and behavioral relevance, birdsong. Using in situ hybridization, we detected a rapid increase in forebrain mRNA levels of an immediate-early gene encoding a transcriptional regulator (ZENK; also known as zif-268, egr-1, NGFI-A, or Krox-24) following presentation of tape-recorded songs to canaries (Serinus canaria) and zebra finches (Taeniopygia guttata). ZENK induction is most marked in a forebrain region believed to participate in auditory processing and is greatest when birds hear the song of their own species. A significantly lower level of induction occurs when birds hear the song of a different species and no induction is seen after exposure to tone bursts. Cellular analysis indicates that the level of induction reflects the proportion of neurons recruited to express the gene. These results suggest a role for genomic responses in neural processes linked to song pattern recognition, discrimination, or the formation of auditory associations.

songbird genome reveals new insights...,

Video - Learning and reproducing song has direct effects on finch genome.

WUSTL | Nearly all animals make sounds instinctively, but baby songbirds learn to sing in virtually the same way human infants learn to speak: by imitating a parent.

Now, an international team of scientists (listed below), led by Washington University School of Medicine in St. Louis, has decoded the genome of a songbird — the Australian zebra finch — to reveal intriguing clues about the genetic basis and evolution of vocal learning.

An analysis of the genome, published April 1 in the journal Nature, suggests a large part of the bird’s DNA is actively engaged by hearing and singing songs. The simple melodies last only a few seconds but are rooted in tremendous genetic complexity, the scientists report.

The new work provides insights to help scientists understand how humans learn language. It also sets the stage for future studies that could help identify the genetic and molecular origins of speech disorders, such as those related to autism, stroke, stuttering and Parkinson’s disease, the researchers say.

“Now we can look deep into the genome, not just at the genes involved in vocal learning, but at the complex ways in which they are regulated,” says senior author Richard K. Wilson, PhD, director of Washington University’s Genome Center. “There are layers and layers of complexity that we’re just beginning to see. This information provides clues to how vocal learning occurs at the most basic molecular level in birds and in people.”

Among songbirds, singing is almost exclusively a male activity: Males serenade females with love songs to attract a mate. As babies, they learn to sing by listening to their fathers. At first, a young bird “babbles,” but with practice learns to closely imitate his father’s song. Once the bird has mastered the family song, he will sing it for the rest of his life and pass it on to the next generation.

Aside from humans and songbirds, other animals known to communicate by vocal learning include bats, whales, elephants, hummingbirds and parrots. Because zebra finches learn to sing in a predictable way and many of their genes are conserved in humans, they are an important model for understanding vocal learning in humans.

the genome of a songbird..,

Video - Zebra Finch pair bathing

Nature | The zebra finch is an important model organism in several fields1, with unique relevance to human neuroscience. Like other songbirds, the zebra finch communicates through learned vocalizations, an ability otherwise documented only in humans and a few other animals and lacking in the chicken—the only bird with a sequenced genome until now. Here we present a structural, functional and comparative analysis of the genome sequence of the zebra finch (Taeniopygia guttata), which is a songbird belonging to the large avian order Passeriformes. We find that the overall structures of the genomes are similar in zebra finch and chicken, but they differ in many intrachromosomal rearrangements, lineage-specific gene family expansions, the number of long-terminal-repeat-based retrotransposons, and mechanisms of sex chromosome dosage compensation. We show that song behaviour engages gene regulatory networks in the zebra finch brain, altering the expression of long non-coding RNAs, microRNAs, transcription factors and their targets. We also show evidence for rapid molecular evolution in the songbird lineage of genes that are regulated during song experience. These results indicate an active involvement of the genome in neural processes underlying vocal communication and identify potential genetic substrates for the evolution and regulation of this behaviour.

As in all songbirds, singing in the zebra finch is under the control of a discrete neural circuit that includes several dedicated centres in the forebrain termed the ‘song control nuclei’. Neurophysiological studies in these nuclei during singing have yielded some of the most illuminating examples of how vocalizations are encoded in the motor system of a vertebrate brain. In the zebra finch, these nuclei develop more fully in the male than in the female (who does not sing), and they change markedly in size and organization during the juvenile period when the male learns to sing. Analysis of the underlying cellular mechanisms of plasticity led to the unexpected discovery of neurogenesis in adult songbirds and life-long replacement of neurons. Sex steroid hormones also contribute to songbird neural plasticity, in part by influencing the survival of new neurons. Some of these effects are probably caused by oestrogen and/or testosterone synthesized within the brain itself rather than just in the gonads.

Song perception and memory also involve auditory centres that are present in both sexes, and the mere experience of hearing a song activates gene expression in these auditory centres. The gene response itself changes as a song becomes familiar over the course of a day or as the context of the experience changes. The act of singing induces gene expression in the male song control nuclei, and these patterns of gene activation also vary with the context of the experience. The function of this changing genomic activity is not yet understood, but it may support or suppress learning and help integrate information over periods of hours to days.