Sunday, May 22, 2011

China's Command Economy Builds Toward Ultimate Collapse

Here are two videos on China's Ghost Cities, and excerpts from recent economic looks at China's recent economic growth. Can the growth be sustained, even though it is built upon massive loans and expenditures on infrastructure growth which no one is using? Keep in mind that buildings, bridges, tunnels, towers, and overpasses in China collapse regularly due to shoddy construction and corrupt oversight. All of this spending looks good on paper, but how will it look in 10 or 20 years when a significant portion of the ghost construction will have already collapsed or required demolition?
The last time your editor checked, central planning was not a huge success. According to history, bureaucrats wielding directives over long distances tend to allocate resources poorly.

But are ghost cities a recipe for a bust? Some say no. The Bloomberg reporter, for instance, assures us that China's economics are different -- that is to say, "it's different this time." (Where have we heard that before...)

It is supposedly OK that these ghost cities, built for millions of inhabitants, have only tens of thousands of people living in them -- because all that deserted square footage will eventually be put to good use.

As a bonus, building ghost cities is great for economic growth.

Via running superhighways out to the middle of nowhere, erecting steel and glass towers in the boondocks, China generates new jobs in construction, civil engineering, city planning and the like. All this construction looks fabulous on paper. The ghostly infrastructure gets counted as productive output, and the super-aggressive GDP target is maintained.

But what is wrong with that picture?

For one, there is the central planning problem. Growth and development are free market forces, with signature markings of trial and error. Successful cities are built from the ground up, not decreed by bureaucrat stamp. So how does the government know where a new metropolis should go, or what its optimal size should be?

Then you have the accounting problems. Should the promise of tomorrow be so readily reflected on balance sheets today?

Imagine if a public corporation said, "We are going to grow 20% per year by building idle factories in the middle of nowhere, that no one is going to use for quite some time. Don't worry though, the demand for these factories will show up. We'll make a profit on them eventually. Just don't ask when."

Such a plan would be brutalized by the market, because public companies are held accountable for profits and return on investment (ROI). (At least most of the time -- in bubble times investors will happily suspend their rational faculties.)

The Chinese government, of course, does not have to seek profit in its actions. Or it can measure results in some entirely non-traditional way, via "how many jobs did we create" or "how do the GDP numbers look."

At the end of the day, the "ghost city" mandate is directly channeling John Maynard Keynes, who once suggested digging holes, then filling them up again as a way to put men to work _TaipanPublishing

China’s blistering growth over the last two years were based on massive government stimulus and unconstrained lending from banks. The end result was over-investment in infrastructure and over-construction in buildings, which did not bear fruit for the money spent and offers only a shaky foundation for further economic growth

Moreover, inflation began to accelerate, forcing the Chinese government to curb lending and raise interest rates. In fact, the tightening efforts of the Chinese government in 2011 has taken the lending rate close to 1 percentage point of pre-recession levels and the bank reserve requirement ratio for large banks to an all-time high of 20.5 percent.

The fear is that if China’s growth has been fueled by rampant lending, the slowing down of lending may therefore crash the economy, or at least slow it down. Furthermore, the construction of commercially unviable buildings, many of which remain empty, is economically unsustainable and must stop sooner or later.

The main problem for the Chinese economy is the failure to distribute income to its massive population and cultivate consumption. Before the financial crisis, the Chinese economy relied on exports to the US. In the past two years, it has been fueled by over-investment and over-building.

Investors in the Chinese stock market may have already wised up to the dangers facing the Chinese economy as the Shanghai Composite has steadily declined since late 2009. _IBTimes

via IBTimes

... the recent explosion of domestic credit creation has saved the collapse of China’s economy.

But Duncan is concerned that rapid credit growth could in fact lead to a banking crisis in the mainland. “There could be no more certain way to destroy a banking system that to permit 60 percent loan growth over a two-year period… Every boom busts, China's boom will be no exception."

China has been seeking to ramp up domestic consumption in order to rebalance its economy. It is one of the key tenets of the country's 12th 5-year plan.

However, Duncan says the rate of wage inflation will not be quick enough to allow the Chinese to consume what they produce due to the country’s “adverse” demographic trends.

“There are so many young people coming into the workforce and there are so many people coming from the countryside into the cities that wages can’t just go up very rapidly.” _cnbc
Peter Hitchens tours a Chinese Ghost City

Wednesday, May 18, 2011

Billionaires Who Are Pushing the Future Forward

"I've been rich and I've been poor, and rich is better."
hplus

Opportunity societies such as the US once was, allowed large numbers of relatively young (mainly) men to achieve great wealth. Some of these young and young-at-heart men are devoting a considerable amount of their wealth to drive future-oriented enterprises such as access to outer space, advanced nuclear fission and fusion, and more. Peter Thiel, for example, is backing life extension, seasteads, and a number of other futuristic game changing technologies.

Jeff Bezos of Amazon.com has backed space launch company Blue Origin for years, and is now backing unconventional nuclear fusion startup General Fusion. Bill Gates' investment in Terrapower advanced fission reactors appears to reflect a deep commitment to advanced abundant energy.

A fair number of these billionare drivers of the future were also school dropouts. Perhaps there is something about having succeeded without receiving the official seal of approval from the educational establishment, which gives a person the courage to push ahead -- risking part of a huge fortune on ideas that are ever further out.

Billionaire Elon Musk's SpaceX is the frontrunner in the private space launch race, having successfully orbited its Falcon 9 boosted Dragon capsule. Robert Bigelow's Bigelow Aerospace is likewise the frontrunning developer of privately built space habitats. Both companies are bringing private sector performance values to the space enterprise which had been hampered by a government sector mentality up until recently.

Richard Branson's Virgin Galactic is the frontrunner for the exciting new industry of space tourism, due in large part to Branson's fortuitous partnership with pioneering aerospace engineer Burt Rutan. Billionaire Paul Allen also played an important role in that partnership.

The imagination, drive, and careful focus on important future industries and technologies sets these men apart from less imaginative billionaires. But it is the ability to invest large amounts of cash -- and inspire others to do so -- combined with their intelligent and energised future orientation, which gives them power to drive the future.

Although these men do not possess nearly the qualifications of a next level human, perhaps they can be seen as prototypes of next levels. And it is likely that persons very much like these will back the projects which lead to the transitioning of the first next level humans.

It is very fortunate that these large fortunes are under the control of such men as these, rather than under the control of men such as US President Obama and other government officials who have never done an honest day's work or had a truly productive thought in their lives.

The best way to make life better for most people is to make as many countries as possible into lands of opportunity -- where even high school and college dropouts can become billionaires and help bring about a more abundant future.

Tuesday, May 17, 2011

Secrets of Sleep, Learning, and Renewable Brains

Levels of adenosine triphosphate (ATP), the energy currency of cells, in rats increased in four key brain regions normally active during wakefulness. Shown here is the energy surge measured in the frontal cortex, a brain region associated with higher-level thinking. Credit: Courtesy, with permission: Dworak et al. The Journal of Neuroscience 2010.

We spend roughly 1/3 of our lives in the state of sleep. Researchers are beginning to learn why we must do this, and are gleaning hints of possible technologies for bypassing at least part of the sleep imperative, and doing well on less sleep.
“For a long time, researchers have known that sleep deprivation results in increased levels of adenosine in the brain, and has this effect from fruit flies to mice to humans.” Abel said. “There is accumulating evidence that this adenosine is really the source of a number of the deficits and impact of sleep deprivation, including memory loss and attention deficits. One thing that underscores that evidence is that caffeine is a drug that blocks the effects of adenosine, so we sometimes refer to this as ‘the Starbucks experiment.’”

Abel’s research actually involved two parallel experiments on sleep-deprived mice, designed to test adenosine’s involvement in memory impairment in different ways.

One experiment involved genetically engineered mice. These mice were missing a gene involved in the production of glial transmitters, chemicals signals that originate from glia, the brain cells that support the function of neurons. Without these gliatransmitters, the engineered mice could not produce the adenosine the researchers believed might cause the cognitive effects associated sleep deprivation.

The other experiment involved a pharmacological approach. The researchers grafted a pump into the brains of mice that hadn’t been genetically engineered; the pump delivered a drug that blocked a particular adenosine receptor in the hippocampus. If the receptor was indeed involved in memory impairment, sleep-deprived mice would behave as if the additional adenosine in their brains was not there.

...To see whether these mice showed the effects of sleep deprivation, the researchers used an object recognition test. On the first day, mice were placed in a box with two objects and were allowed to explore them while being videotaped. That night, the researchers woke some of the mice halfway through their normal 12-hour sleep schedule.

On the second day, the mice were placed back in the box, where one of the two objects had been moved, and were once again videotaped as they explored to see how they reacted to the change.

“Mice would normally explore that moved object more than other objects, but, with sleep deprivation, they don’t,” Abel said. “They literally don’t know where things are around them.”

Both sets of treated mice explored the moved object as if they had received a full night’s sleep.

“These mice don’t realize they’re sleep-deprived,” Abel said.

Abel and his colleagues also examined the hippocampi of the mice, using electrical current to measure their synaptic plasticity, or how strong and resilient their memory-forming synapses were. The pharmacologically and genetically protected mice showed greater synaptic plasticity after being sleep deprived than the untreated group.

Combined, the two experiments cover both halves of the chemical pathway involved in sleep deprivation. The genetic engineering experiment shows where the adenosine comes from: glia’s release of adenosine triphosphate, or ATP, the chemical by which cells transfer energy to one another. And the pharmacological experiment shows where the adenosine goes: the A1 receptor in the hippocampus. _MedicalXpress
Abel's is a sophisticated experiment which covers a lot of possiblities. Combining the findings of this experiment with findings of previous experiments gives one a fuller picture of what is going on.

The brain has evolved certain activity in N2 sleep (sleep spindles) which apparently promote the production of ATP from adenosine and phosphate groups. As ATP levels rise in N2 sleep, adenosine levels drop. So the sound sleeper receives both the benefits of higher ATP energy levels and the improved learning that results from lower hippocampal free adenosine levels.

More on sleep spindles (PDF)

Adenosine is a potent pharmacological agent, powerfully affecting heart rhythms. It also affects central nervous system activity in a largely inhibitory function, and also exhibits anti-inflammatory effects.

Adenosine and deep brain stimulation (DBS)

Why Do We Sleep? A brief look at stages of sleep, and possible benefits of sleep.

Cross-posted to Al Fin Longevity

Thursday, May 12, 2011

Humans Still Do Not Understand Oceans or Planet

Wiki

Popular culture is immersed with the message that "humans are killing the oceans" and "man is destroying the planet." But science is so abysmally ignorant about what is actually happening in the seas and on land, that the faux environmentalist message of doom is based upon a blooming ignorance, and little else.

Take a recent declaration of "plankton apocalypse" by researchers from Dalhousie University in Nova Scotia. Faux environmentalists seized on the single, unsubstantiated report as confirmation that the end of the world is near. More knowledgeable and intelligent persons knew -- or at least sensed -- that the Dalhousie report was hagwash. And so it seems to have been. Much of modern published "science" dealing with the environment and climate is unmitigated hogwash, albeit politically correct.

But there is much valid and valuable science to be learned from the oceans, if one can work objectively and without prejudicial biases.
Physorg

"The big mystery about bacteria is what they are doing in nature," Whitman said. "The organisms metabolize compounds for their own needs. We need to understand what they are getting out of it to understand what it means for the ocean, and now it will be possible to look at the environmental importance of this process and how it's regulated." That will help to answer the "why" of the two sulfur fates. _Physorg
Notice that the U. of Georgia scientists are microbiologists -- not "climatologists." Although the microbiologists link their study to climate -- for reasons of funding among others -- their results help to expose the abysmal ignorance of climate "science" with regards to the oceans and cloud formation.
SeaFriends

Scientists have discovered that marine diatoms, tiny phytoplankton abundant in the sea, have an animal-like urea cycle, and that this cycle enables the diatoms to efficiently use carbon and nitrogen from their environment.

The researchers, from the J. Craig Venter Institute (JCVI) and other institutions, published their findings in this week's issue of the journal Nature.

The team, led by lead author Andrew Allen from JCVI and co-author Chris Bowler, Institute of Biology, Ecole Normale Supérieure, Paris, believes that the cycle could be a reason for the domination of diatoms in marine environments, especially after upwelling events--the upward movement of nutrient rich waters from the deep ocean to the surface.

In response to ocean upwelling, diatoms are able to quickly recover from prolonged periods of nutrient deprivation and rapidly proliferate. _Physorg
Nature

Here again, we see a significant finding that relates importantly to global carbon balance, ocean phytoplankton levels, and atmospheric oxygen levels. How many other momentous and paradigm-changing discoveries are waiting for humans to discard their politically correct prejudices in order to better perceive the reality of the universe?

Wednesday, April 20, 2011

Gyroplanes of the World

From Sport Copter of Oregon:
In case you didn't already know, "gyrocopter", "gyroplane", "autogiro" and "autogyro" all mean the same thing, and the most important feature shared by gliders, airplanes, helicopters and gyroplanes is that they all use wings to fly. It's just that on helicopters and autogyros the wings are mounted on pylons and spin in circles, but they are rigidly affixed to the sides of airplanes and gliders. Other than that, they all get into the sky the same way: You move a wing rapidly through the air and it produces Lift. The rotating wings of a helicopter are directly-driven by the engine, enabling it to hover; whereas the rotating wings of the gyroplane are free-spinning, meaning it can't hover – though it can come astonishingly close to it, because it needs very little forward speed to stay airborne.


The cardinal virtue of the gyroplane is its ability to do nearly everything a helicopter can do, at only a fraction of the cost, while doing it more safely than any other kind of flying machine. While even the most mundane gyroplanes are true STOL (Short Take-Off/Landing) vehicles, they can be configured to take-off and land with no ground-roll at all. Moreover, their exceptional STOL capabilities make them terrific for "bush" or water operations. Helicopters are vastly more mechanically complex than any other kind of aircraft, with a host of critically interdependent moving parts, which is why they cost several times as much to purchase and maintain as a same-sized gyroplane. Meanwhile, many gyroplanes can be purchased and operated for less than some motorcycles, and because they fly in a constant state of autorotation, even a total engine failure results in a parachute-like descent, making them the safest of all aircraft.As if all that weren't wonderful enough, a typical gyroplane can stay aloft at 5 to 10 knots airspeed, and even a small gyroplane (in the hands of a competent, experienced pilot) can be operated safely under high wind conditions that would keep gliders, ultra-lights, blimps, balloons, space launches and most private airplanes on the ground. Moreover, gyroplanes are capable of the same forward speeds as helicopters. This is so because of the rotating wings, and their "wing-loading", a term describing how many pounds of an aircrafts total weight are supported by each square foot of its wings; Gyroplanes have very high wing-loading because their rotorblades have so little total area, using rotational speed rather than size to generate lift. So gyroplanes really do offer exceptional utility. _SportCopter
SportCopter of Oregon
Gyrocopters provide an amazing freedom of movement at a relatively low cost. They can be equipped with skis for snow and ice, or floats for water TO/Ls. If you need to make a quick getaway from a gridlocked mega-city when the fecal matter hits the rapidly rotating blades, consider the lowly gyroplane.
Auto-Gyro
The newest addition to the gyrocopter genre arrived at Aero Friedrichshafen this week in the form of a side-by-side, fully-enclosed, composite construction Cavalon gyrocopter. The gyrocopter is to the helicopter what the microlight is to traditional small aircraft. Invented in 1923 by Spaniard Juan de la Cierva, the gyrocopter uses quite a different layout to the helicopter to give it stability at low speed. It is cheap to run, takes off and lands on a ridiculously small footprint, and has a powered pusher propeller in addition to an unpowered main rotor.Certification for the EUR65,000 Cavalon is almost complete in Germany and France, and AutoGyro will assist with certification documentation for other countries. Additionally, there are still ten units up for grabs in this year's production run.

The closest competitor to the Cavalon is the Xenon gyrocopter built in Poland, though the Xenon has the one-axle cyclic control while the Cavalon has a two-stick arrangement and the Cavalon stores its fuel outside the cabin. _Gizmag
CellerAviation

CELIER AVIATION is proud to welcome you to the world of the finest and now legendary gyrocopters: Xenon 2 R, Xenon 2 RST and XL. The KISS serial, under preparation is the 2011 next winner. Do not forget to look our news often, get the abonment to our RSS system. _Celier Aviation

Sunday, April 17, 2011

Electromagnetic Brain Stimulation More Popular

Neuroscientists at the University of New Mexico asked volunteers to play a video game called “DARWARS Ambush!”, developed to help train American military personnel. Half of the players received 2 milliamps of electricity to the scalp, using a device powered by a simple 9-volt battery, and they played twice as well as those receiving a much tinier jolt. The DARPA-funded study suggests direct current applied to the brain could improve learning.

This type of brain stimulation, called transcranial direct current stimulation (tDCS), is controversial but could show promise for treatment of various neurological disorders and cognitive impairments _PopSci
ImpactLab

The wide field of electromagnetic brain stimulation is likely to prove to be a fertile area of research. Because the brain itself runs on electrical currents -- with it corresponding magnetic fields -- anything that might influence or interfere with these electrical and magnetic fields are likely to influence brain activity. But many of these researchers are discovering ways to selectively augment or inhibit particular parts of the brain, reversibly. Being able to do that safely provides an incredibly powerful research tool.
The technique, which has roots in research done more than two centuries ago, is experiencing something of a revival. Clark and others see tDCS as a way to tease apart the mechanisms of learning and cognition. As the technique is refined, researchers could, with the flick of a switch, amplify or mute activity in many areas of the brain and watch what happens behaviourally. The field is "going to explode very soon and give us all sorts of new information and new questions", says Clark. And as with some other interventions for stimulating brain activity, such as high-powered magnets or surgically implanted electrodes, researchers are attempting to use tDCS to treat neurological conditions, including depression and stroke. But given the simplicity of building tDCS devices, one of the most important questions will be whether it is ethical to tinker with healthy minds — to improve learning and cognition, for example. The effects seen in experimental settings "are big enough that they would definitely have real-world consequences", says Martha Farah, a neuroethicist at the University of Pennsylvania in Philadelphia. _Nature

And certainly, the techniques will not be used only in research and therapeutic situations. They will also be used by students, bankers, lawyers, salesmen, recreational mind trippers, sex fiends, and a wide range of individuals wanting to make more or less of themselves, depending upon their particular inclinations and needs.

We live in a foolish and dysfunctional world. But there is no reason why parts of the world cannot wake up and discover how to make itself more rational, prosperous, and fulfilled.

Saturday, April 02, 2011

A Thick Dome Arcology with Sunroofs

Inhabitat

Think of it as a skyscraper laid on its side, curved into a dome with large holes in it. There is a lot of living and working room implied, depending upon the thickness of the dome itself, and its diameter.
This proposed arched building is a unique solution to the question of how to create density without dominating a skyline or swallowing green space. Proposed for the city of Rennes, France, the gargantuan inhabited dome placed second in this year’s eVolo skyscraper competition. Designed by Yoann Mescam, Paul-Eric Schirr-Bonnans, and Xavier Schirr-Bonnans, Flat Tower envelops a vast green space, has the ability to collect sun and rainwater and is also a sustainable solution to developing appropriately large scale developments. _Inhabitat

Inhabitat

It is easy to imagine a seastead dome of this type, arching over a floating base of sufficient buoyancy. The lower, semi-submerged portion may be a mirror-image inverted dome, or another shape more conducive to cross-water directional travel.

The most important consideration is often to nudge oneself out of conventional, rutted ways of thinking, into a workspace for envisioning novel structures, mechanisms, and devices.

Taken from an article in Al Fin Potpourri

Friday, April 01, 2011

North Korea Completing Devastating EMP Weapon?

The North is believed to be nearing completion of an electromagnetic pulse bomb that, if exploded 25 miles above ground would cause irreversible damage to electrical and electronic devices such as mobile phones, computers, radio and radar, experts say. _abcnews
Futurescience
A specialised EMP nuclear burst high above the atmosphere, could knock out continental-sized power grids. Much of the entire continental US and parts of Canada and Mexico could be temporarily sent to the dark ages with a single EMP-customised nuclear device detonated in orbit.

Given the heavy dependency of modern societies on electric power, it has been estimated that long-term loss of electric power over a wide area could result in loss of up to 90% of pre-event population. Such a high mortality rate could occur due to a combination of long-term basic infrastructure breakdown combined with the inability to bring significant aid into the area from the outside.

Both the US and the USSR conducted experiments to determine the effects of EMP from high altitude nuclear detonations:
A few hours after the sun rose in Kazakhstan on [a] cloudy October morning, the Soviet Union detonated a 300 kiloton thermonuclear warhead in space at an altitude of 290 kilometers (about 180 miles) over a point just west of the city of Zhezkazgan in central Kazakhstan. The test was generally known only as Test 184 (although some Soviet documents refer to it as K-3). It knocked out a major 1000-kilometer (600-mile) underground power line running from Astana (then called Aqmola), the capital city of Kazakhstan, to the city of Almaty. Several fires were reported. In the city of Karagandy, the EMP started a fire in the city's electrical power plant, which was connected to the long underground power line.

The EMP also knocked out a major 570 kilometer long overhead telephone line by inducing currents of 1500 to 3400 amperes in the line. (The line was separated into several sub-lines connected by repeater stations.) There were numerous gas-filled overvoltage protectors and fuses along the telephone line. All of the overvoltage protectors fired, and all of the fuses on the line were blown. The EMP damaged radios at 600 kilometers (360 miles) from the test and knocked out a radar 1000 kilometers (600 miles) from the detonation. Some military diesel generators were also damaged. The repeated damage to diesel generators from the E1 component of the pulse after the series high-altitude tests was the most surprising aspect of the damage for the Soviet scientists. _FutureScience
And those effects in Kazakhstan resulted from the detination of a bomb not particularly efficient at producing EMPs. A custom-designed EMP nuke would have done a far more thorough and devastating job of it.

It is not a question of "if," but of "when" and "where" such an attack will occur. If it occurs over a modern nation which has not prepared for it, the loss of life is likely to be severe. In addition, the target nation would temporarily lose its ability to operate effectively, internationally. The widely dispersed nature of the US suggests that that country would maintain significant retaliatory capacity, but the civilian infrastructure would require massive and lengthy re-building. During that time of re-building, it is likely that many millions of people would die from a wide range of causes caused ultimately by the attack.

Good introductory article on EMP from FutureScience

Wikipedia entry on EMP

Federation of American Scientists article on EMP

EMPact America EMP resource

"One Second After" website for novel based on EMP attack over most of US, and subsequent aftermath

If the damage to the electrical infrastructure from a coordinated EMP attack were widespread enough, restoration of widespread grid power could take years. Over that time period, many large cities would likely revert to barbarism without overwhelming military presence. With hundreds of cities involved, it is unlikely that the US military could preserve order in more than a few.

That is why any hint at development of EMP weapons by North Korea, Iran, Venezuela, etc. must be taken seriously. While it is true that any nation launching an obvious EMP attack against the US would probably be obliterated by retaliation, it is possible to launch a satellite containing an EMP weapon -- but with a different primary use. Such a "sleeper" satellite could orbit for years until it was felt strategically opportune, by its owner, to detonate it. By the time a case could be made against the true culprit, the US (or Europe etc) may no longer be functioning as a viable civilised society.

As you can imagine, preppers and survivalists have taken an interest in the EMP phenomenon, with an emphasis on how to prepare to survive such a widespread disaster. Here is one PDF essay on that topic from Prepper.info

You will need to use your imagination here. What would happen to your neighborhood, community, town, city, etc. if it were to lose power for several months, without significant outside assistance? How long would it take for the stores to run out of food and supplies, or for the fueling stations to run out of fuel? How would you feed yourself and your family, if civil disorder set in -- preventing a cooperative community effort to share resources?

Such weapons may be in orbit overhead, even now, waiting for a designated time to inflict chaos on a targeted continent. What should you do?

Tuesday, March 29, 2011

Is AI Finally Acknowledging the Existence of Bio-Brains?


Randal Koene - Whole Brain Emulation from Raj Dye on Vimeo.
The above is a video from a conference on artificial general intelligence (AGI) held in Switzerland, last year. The speaker is a neuroscientist -- an outsider to the typical AI person who attends AI conferences. His appearance at the AGI conference indicates that the entire approach to AI is in a state of flux.

The attitude up until recently has been that intelligence does not rely upon any particular substrate, eg, a brain. AI researchers have boldly believed for several decades that intelligence could be built algorithmically inside machine architectures over a relatively short time span. "Sometime within 10 years . . ."

They have been saying the same thing -- "within 10 years" -- since the 1950s. Clearly not very much has happened in the way of significant breakthroughs since the 1950s. In fact, contemporary AI researchers themselves may well be growing less impressive, over time, than the pioneers of the field.

Hence the perceived need for possibly re-thinking the whole "substrate" approach. Another video in the series deals with the requirements of "cognitive architecture." An impressive phrase, although the reality is likely to prove far less impressive.  Another talk is entitled A General Intelligence Oriented Architecture for Embodied Natural Language Processing.   At least more thought is being devoted in the AI community toward the substrate of intelligence.   Late is better than never.

Adapted from Al Fin Potpourri

Saturday, March 26, 2011

Smart Drugs? No, Just Quicker at Being Stupid

Update: A review of an array of "smart drugs" from a company that actually sells them.
A brief description of one instance of Provigil use from a Times reporter
Why Smart Drugs Don't Work Like NZT

What are smart drugs? Pills that are supposed to enhance a person's cognitive abilities in some way. Anything from Ritalin to Amphetamines to Provigil might qualify, as well as a wide range of lesser known "nootropics."

These pills are not only popular among university students, but also , truck drivers, and fast-paced professionals pushing every synapse to its limit. They can enhance attention, prolong attention span, help keep the mind on topic. All very important when facing a deadline for a research paper, a big work project, or when cramming for an exam.

In one sense, advanced societies run on smart drugs. Western societies embraced coffee, tea, and chocolate as quickly as they could -- and significant battles were fought over the rights to market these early smart drugs.

Fast forward to today, and the "stimulant smart drugs" are being pumped onto the markets -- both legal and illegal -- at prodigious rates. But newer, more advanced generations of smart drugs may be on the horizon.

This Al Fin posting from 2007 is still one of the best summaries of smart drug research I have found. Here is a more recent survey of the field from Gizmodo. Some of the newer drugs enhance attention, some enhance memory, some may enhance creativity.

But what about other approaches to getting smarter, besides drugs?
Instead of drugs, the first brain boosters to channel creativity could be electromagnetic devices designed to enhance cognitive skills. One fascinating proposal comes from Allan Snyder, director of the Centre for the Mind at the University of Sydney in Australia. He theorizes that autistic savants derive their skills from an ability to access “privileged, less processed sensory information normally inhibited from conscious awareness.” For normal people, tapping that sensory well might lead to deeply buried creative riches. To test the idea, Snyder and colleagues exposed subjects to low-frequency magnetic pulses (the technology is called transcranial magnetic brain stimulation, or TMS) that suppressed part of their brain function. The researchers found that the subjects acquired savantlike skills, including the ability to render more detailed, naturalistic art. _Discover
Electromagnetic stimulation of the brain probably has a great future ahead of it. But caution is always wise, when working in and around the brain.

All of these drugs -- past, present, and future generation -- are relative sledge-hammers compared to the intricate workings of the human brain. But the real reason smart drugs won't work like "NZT" (from the movie "Limitless") is because none of them can make the necessary changes in both function and structure, to turn mediocrity into brilliance.

But for some of us, not trying is not an option.

Wednesday, March 23, 2011

Building a Neo-Nano-Neuro-Brain from Scratch

Nanonerves

Human brains are amazing mental machines. As far as we know, there is nothing else quite like them in the universe. But we always wonder whether perhaps, we could build something just a bit better? Observe all the hoopla and expenditure over the past 60+ years in the field of "artificial intelligence." What a disappointment that has been so far.

It seems we may be taking the wrong approach to the problem. Why should we abandon the human brain -- the only working model of conscious intelligence that we know of -- and place all our hopes on digital silicon? Perhaps the human brain is not as intelligent as we thought -- at least human brains in academia, research, and research funding?

Here is an interesting twist on the conundrum: Why not design a neuronal scaffolding out of nanotubes made of germanium and silicon, then allow neurons to grow within the scaffolding? The neurons will naturally make networked connections with each other along the scaffold, but an added bonus may be the ability to interface the neurons with the silicon-germanium substrate of the scaffold itself.
Graduate students at the University of Wisconsin, Madison, led by Minrui Yu, have published an ACS Nano paper, "Semiconductor Nanomembrane Tubes: Three-Dimensional Confinement for Controlled Neurite Outgrowth," in which they show that they have been able to successfully coax nerve cell tendrils to grow through tiny tubes made of the semi-conductor materials silicon and germanium. While this ground-breaking research may not portend cyborgs or even human brains enmeshed with computer parts, it does open the door to the possibility of regenerating nerve cells damaged due to disease or injury.

Yu and his team, led by Justin Williams, a biomedical engineer, created tubes of varying sizes and shapes, small enough for a nerve cell to glam on to, but not so big that it could fit all the way inside. The tubes were then coated with nerve cells from mice and then watched to see how they would react. Instead of sitting idly, the nerve cells began to send tendrils through the tunnels, as if searching for a path to something or somewhere else. In some instances they actually followed the contours of the tubes, which means, in theory, that the nerves could be grown into structures. _PO
Indeed. The nerves could be grown into structures along prescribed pathways. But the possibility of a functional and powerful brain-machine interface is also being considered.
The hope of course, in this type of research, is that a way can be found to connect a computer of some sort to a group of nerve cells to reestablish communication that has been disrupted. The computer in this case could serve as a relay of sorts, allowing those who can no longer walk, for example, due to spinal injury or disease, regain their former abilities. In that regard, this particular research is even more revealing than it might at first seem, due to the fact that the tiny tubes that have been created, very closely resemble myelin, the outer insulating sheath that covers parts of normal nerve cells. _PO
This is the actual goal of the researchers in Wisconsin: to grow a nerve:computer interface. But emergent phenomena are likely to grow from the humble beginnings of such an approach. If one can design a scaffolding according to the most advanced brain imaging, seed it with the appropriate proto-cells, and nourish it into an intricate, functioning, autopoietic neural:nano hybrid network, what fascinating phenomena may manifest themselves along the way?

Cyborg or Grobyc? You be the judge.

Tuesday, March 08, 2011

Overlapping Climate Cycles Lead to Natural Climate Chaos

Earth's climate is driven by multiple ongoing cycles on many levels. When natural resonant cycles overlap -- at whatever level -- they can contribute to a chaotic pattern.
When the overlap starts, many higher-order resonances are also involved so fairly large areas of phase space have their tori destroyed and the ensuing chaos is "widespread" since trajectories are now free to wander between regions that previously were separated by nonresonant tori. _Wolfram
We begin with a pictorial overview of the natural components of climate -- sun, ocean, land, atmosphere, volcanoes, ice & snow, living organisms -- all of which appear to be subject to periodic cycling of various types, with potentially chaotic overlap.
Volcanoes can exert very strong influences on climate. It appears as if volcanic activity can occur at widely separated locations almost simultaneously, due to underlying geologic activity. Whether or not such tectonic movements occur "cyclically," the impact of such large scale volcanic activity can easily contribute to a naturally chaotic climate.
Natural ocean oscillations are thought to be driven by periodic solar variation, pictured below. These ocean oscillations such as El Nino (PDF) drive cycles of atmospheric heating and cooling, cycles of ice & snow, and strongly influence populations of living organisms worldwide.
Solar variation influences the size of the heliosphere, and determine the extent of galactic cosmic ray infiltration into the solar system and Earth's climatic system. This cyclic variation of cosmic ray bombardment on Earth's atsmosphere is thought to influence the amount of cloud formation in the atmosphere, which influences planetary ensolation and radiative heat balance.
The Milankovich orbital cycles occur with different periodicity in the tens of thousands of years, creating overlapping resonances with potential chaotic results on climate.
Another multi-thousand year orbital cycle which could easily influence global climate, is the slightly varying angle of Earth's solar orbit to the ecliptic. As the planet falls slightly below the plane and risis slightly above the plane of the ecliptic -- over tens of thousands of years -- the thickness of intervening dust between Earth and Sun varies. This periodically alters the ensolation of the Earth's system. Such cycles may have subtle effects, but in combination with other overlapping resonances, these overlapping effects may push the system into a chaotic result.
The image above illustrates the heliosphere, which can expand and contract according to the Sun's periodic activity. The fluctuating heliosphere is an important line of defense against galactic cosmic rays -- which are very likely to influence Earth's climate.
The Solar system is passing through an enormous interstellar cloud, which may or may not have an influence on climate. But it is a rather fascinating topic all the same.

Understanding natural chaos in climate is a crucial matter for policy-makers, who must determine the fate of US$trillions of future spending of tax dollars.

For science to provide the greatest benefit to those who fund it, it must focus upon genuine problems which need to be solved. As long as scientists have open, sceptical minds, they are more able to look at problems from varying perspectives -- from the close-in small picture, to the far-out big picture.

The last thing that tax-paying humans need is for their tax-paid scientists to fly off on a narrow tangent which ignores the larger picture. That would be a very wasteful tragedy.

Taken from an earlier article published at Al Fin