Frontiers in Computing

Darpa Has Seen the Future of Computing … And It’s Analog - Robert McMillan

"One of the things that’s happened in the last 10 to 15 years is that power-scaling has stopped,” he says. Moore’s law — the maxim that processing power will double every 18 months or so — continues, but battery lives just haven’t kept up. “The efficiency of computation is not increasing very rapidly,” he says.

Hammerstom, who helped build chips for Intel back in the 1980s, wants the UPSIDE chips to do computing in a whole different way. He’s looking for an alternative to straight-up boolean logic, where the voltage in a chip’s transistor represents a zero or a one. Hammerstrom wants chipmakers to build analog processors that can do probabilistic math without forcing transistors into an absolute one-or-zero state, a technique that burns energy.

It seems like a new idea — probabilistic computing chips are still years away from commercial use — but it’s not entirely. Analog computers were used in the 1950s, but they were overshadowed by the transistor and the amazing computing capabilities that digital processors pumped out over the past half-century.

Digital Processors Limited by Power; What’s the UPSIDE?

The Unconventional Processing of Signals for Intelligent Data Exploitation (UPSIDE) program seeks to break the status quo of digital processing with methods of video and imagery analysis based on the physics of nanoscale devices. UPSIDE processing will be non-digital and fundamentally different from current digital processors and the power and speed limitations associated with them.

Instead of traditional complementary metal–oxide–semiconductor (CMOS)-based electronics, UPSIDE envisions arrays of physics-based devices (nanoscale oscillators may be one example) performing the “processing. These arrays would self-organize and adapt to inputs, meaning that they will not need to be programmed as digital processors are. Unlike traditional digital processors that operate by executing specific instructions to compute, it is envisioned that the UPSIDE arrays will rely on a higher level computational element based on probabilistic inference embedded within a digital system.

Probabilistic inference is the fundamental computational model for the UPSIDE program. An inference process uses energy minimization to determine a probability distribution to find the object that is the most likely interpretation of the sensor data. It can be implemented directly in approximate precision by traditional semiconductors as well as by new kinds of emerging devices.

Meet Russell Kirsch

An Unexpected Ass Kicking - Joel Runyon

“I’ve been against Macintosh company lately. They’re trying to get everyone to use iPads and when people use iPads they end up just using technology to consume things instead of making things. With a computer you can make things. You can code, you can make things and create things that have never before existed and do things that have never been done before.”

“That’s the problem with a lot of people”, he continued, “they don’t try to do stuff that’s never been done before, so they never do anything, but if they try to do it, they find out there’s lots of things they can do that have never been done before.”

Romney/Ryan 2012

Mitt Romney has chosen Paul Ryan as his running mate. If there is any sanity left in the U.S. electorate, we'll be seeing a new administration in Washington. Here is a look at Paul Ryan:



Lots of links at Instapundit.

And, if you're so inclined, you can donate here.

The Best Fireworks Show Ever

The Food Pyramid Contrarian

What Really Makes Us Fat - Gary Taubes

One diet was low-fat and thus high in carbohydrates. This was the diet we’re all advised to eat: whole grains, fruits, vegetables, lean sources of protein. One diet had a low glycemic index: fewer carbohydrates in total, and those that were included were slow to be digested — from beans, non-starchy vegetables and other minimally processed sources. The third diet was Atkins, which is very low in carbohydrates and high in fat and protein.

The results were remarkable. Put most simply, the fewer carbohydrates consumed, the more energy these weight-reduced people expended. On the very low-carbohydrate Atkins diet, there was virtually no metabolic adaptation to the weight loss. These subjects expended, on average, only 100 fewer calories a day than they did at their full weights. Eight of the 21 subjects expended more than they did at their full weights — the opposite of the predicted metabolic compensation.

Why the Campaign to Stop America's Obesity Crisis Keeps Failing - Gary Taubes

There is an alternative theory, one that has also been around for decades but that the establishment has largely ignored. This theory implicates specific foods—refined sugars and grains—because of their effect on the hormone insulin, which regulates fat accumulation. If this hormonal-defect hypothesis is true, not all calories are created equal, as the conventional wisdom holds. And if it is true, the problem is not only controlling our impulses, but also changing the entire American food economy and rewriting our beliefs about what constitutes a healthy diet.

Oddly, this nutrient-hormone-fat interaction is not particularly controversial. You can find it in medical textbooks as the explanation for why our fat cells get fat. But the anti-obesity establishment doesn’t take the next step: that fat fat cells lead to fat humans. In their eyes, yes, insulin regulates how much fat gets trapped in your fat cells, and the kinds of carbohydrates we eat today pretty much drive up your insulin levels. But, they conclude, while individual cells get fat that way, the reason an entire human gets fat has nothing to do with it. We’re just eating too much.

Fast and Furious Roundup

Obama Contributor, Who Helped Enact Assault-Weapons Ban, Ran ‘Fast and Furious’ - Fred Lucas

Dennis K. Burke, who as a lawyer for the Democrats on the Senate Judiciary Committee in the 1990s was a key player behind the enactment of the 1994 assault-weapons ban, and who then went on to become Arizona Gov. Janet Napolitano’s chief of staff, and a contributor to Barack Obama’s 2008 presidential primary campaign, and then a member of Obama's transition team focusing on border-enforcement issues, ended up in the Obama administration as the U.S. attorney in Arizona responsible for overseeing Operation Fast and Furious.

When Obama nominated Burke to be U.S. Attorney for the District of Arizona, Burke told the Arizona Capitol Times he believed he understood what the president and his attorney general wanted him to do.

In 255-67 vote, House places Holder in contempt of Congress - Jordy Yager and Pete Kasperowicz

The House voted Thursday to place Attorney General Eric Holder in contempt of Congress for not complying with a congressional subpoena.

Seventeen Democrats bucked party lines and voted with Republicans to pass a criminal contempt resolution in a 255-67 vote. House Oversight and Government Affairs Committee Chairman Darrell Issa (R-Calif.) pushed that resolution as part of his 16-month investigation into the  botched "Fast and Furious" gun-tracking operation.

Fast and Furious Noose Tightens Around Justice Department - Andrew C. McCarthy

Explosive reports are now surfacing that Justice Department officials clearly knew about the Fast and Furious “gunwalking” tactic, in which the federal government — actually, a task force comprised of Justice Department agencies and led by ATF, a Justice Department agency — allowed upwards of 1400 illegally purchased firearms to be routed to violent Mexican drug gangs. This recklessness led, quite foreseeably, to the murder of at least one federal agent, Border Patrol Agent Brian Terry, and probably a second, Homeland Security Agent Jaime Zapata. There are reportedly also scores of victims in Mexico.

The reports, including this one from Stephen Dinan of the Washington Times, explain that this gunwalking information was contained in applications the Justice Department made to the court for wiretapping authorization beginning no later than March 2010 (i.e., over eight months before Agent Terry was killed). Readers of Ordered Liberty will not be surprised to hear this. As I explained in a post last week:

[T]here were wiretaps in the F&F investigation, and when the government seeks a wiretap, federal law requires it to explain what investigative tactics have been used in the case, an explanation that is vetted by top DOJ officials because the government cannot apply for the wiretap without the approval of the attorney general or his designee (a high Justice Department official) — it seems highly unlikely, assuming DOJ complied with wiretap law, that top Justice Department officials did not know about the gun-walking tactic until late in the game.

Darrell Issa Puts Details of Secret Wiretap Applications in Congressional Record - Jonathan Strong

While Issa has since said he has obtained a number of wiretap applications, the letter only refers to one, from March 15, 2010. The full application is not included in what Issa entered into the Congressional Record, and names are obscured in Issa’s letter.

In the application, ATF agents included transcripts from a wiretap intercept from a previous Drug Enforcement Administration investigation that demonstrated the suspects were part of a gun-smuggling ring.

“The wiretap affidavit details that agents were well aware that large sums of money were being used to purchase a large number of firearms, many of which were flowing across the border,” the letter says.

The application included details such as how many guns specific suspects had purchased via straw purchasers and how many of those guns had been recovered in Mexico.

It also described how ATF officials watched guns bought by suspected straw purchasers but then ended their surveillance without interdicting the guns.

Social Change in America

The Once and Future Liberalism - Walter Russell Mead

In the heyday of the blue model, economists and social scientists assumed that from generation to generation Americans would live a life of incremental improvements. The details of life would keep getting better even as the broad outlines of society stayed the same. The advanced industrial democracies, of which the United States was the largest, wealthiest and strongest, had reached the apex of social achievement. It had, in other words, defined and was in the process of perfecting political and social “best practice.” America was what “developed” human society looked like and no more radical changes were in the offing. Amid the hubris that such conceptions encouraged, Professor (later Ambassador) Galbraith was moved to state, in 1952, that “most of the cheap and simple inventions have been made.”1 If only the United States and its allies could best the Soviet Union and its counter-model, then indeed—as a later writer would put it—History would end in the philosophical sense that only one set of universally acknowledged best practices would be left standing.

Life isn’t this simple anymore. The blue social model is in the process of breaking down, and the chief question in American politics today is what should come next.

Future tense, X: The fourth revolution - James Piereson

The conflict today between Democrats and Republicans increasingly pits public sector unions, government employees and contractors, and beneficiaries of government programs against middle-class taxpayers and business interests large and small. In states where public spending is high and public sector unions are strong, as in New York, California, Illinois, and Connecticut, Democrats have gained control; where public sector interests are weak or poorly organized, as in most of the states across the south and southwest, Republicans have the edge. This configuration, when added up across the nation, has produced a series of electoral stand-offs in recent decades between the red and blue states that have been decided by a handful of swing states moving in one direction or the other.

This impasse between the two parties signals the end game for the system of politics that originated in the 1930s and 1940s. As the “regime party,” the Democrats are in the more vulnerable position because they have built their coalition around public spending, public debt, and publicly guaranteed credit, all sources of funds that appear to be reaching their limits. The end game for the New Deal system, and for the Democrats as our “regime party,” will arrive when those limits are reached or passed.

This point will arrive fairly soon for the following reasons: (1) unsustainable debt; (2) public promises that cannot be fulfilled; (3) stagnation and slow growth; and (4) political paralysis. The last point is important because it means that the parties will fail to agree on any preemptive solutions to the above problems until they reach a point of crisis.

...

The regime of public spending has at last drawn so many groups into the public arena in search of public dollars that it has paralyzed the political process and driven governments to the edge of bankruptcy. These groups are widely varied: trade associations, educational lobbies, public employee unions, government contractors, ideological and advocacy organizations, health-care providers, hospital associations that earn revenues from Medicare and Medicaid programs, and the like. These are what economists call rent-seeking groups because they are concerned with the distribution of resources rather than with the creation of wealth. They consume rather than create wealth. These groups are highly influential in the political process because they are willing to invest large sums in lobbying and election campaigns in order to protect their sources of income. While rent-seeking groups can be found in both political parties, the largest and most influential of them (at least on the spending side) have congregated within the Democratic Party. To expand on what was said earlier, one might describe the Democratic Party as a coalition of rent-seekers.