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06 Jan 10

Books - Sherlock Holmes, Shapeshifter - Robert Downey Jr.’s Version - NYTimes.com

  • Holmes is so memorable because, like later superheroes, he is less a fully developed character than a collection of fascinating traits. Raymond Chandler once complained that Holmes was little more than a few lines of unforgettable dialogue and an attitude: the drug habit, the boredom, the violin playing, the show-offy logical deductions, which Conan Doyle freely admitted were based on one of his medical school professors.

    Yet Holmes’s vagueness and incompleteness on the page are what make him so irresistible as a pop figure, on whom we can project our own interpretation. A lot of what we know, or think we know, about him — the deerstalker hat, the cloaks, the catchphrase “Elementary, my dear Watson” — comes not from the texts at all but from subsequent imaginings of him, the movies especially.

  • On the other hand, the oddest thing about the movie is that Holmes is here lovable and endearing in a way that he has seldom, if ever, been before. Endearingness used to be the Watson trait — on film, anyway; in the books Watson is mostly just a straight man.
05 Jan 10

Keeping America's Edge > Publications > National Affairs

  • Our strategic situation is shaped by three inescapable realities. First is the inherent conflict between the creative destruction involved in free-market capitalism and the innate human propensity to avoid risk and change. Second is ever-increasing international competition. And third is the growing disparity in behavioral norms and social conditions between the upper and lower income strata of American society.
  • Rather, it compels us to consider how we balance economic dynamism and growth against the unity and stability of our society. After all, we must have continuous, rapid technological and business-model innovation to grow our economy fast enough to avoid losing power to those who do not share America's values — and this innovation requires increasingly deregulated markets and fewer restrictions on behavior. But such deregulation would cause significant displacement and disruption that could seriously undermine America's social cohesion — which is not only essential to a decent and just society, but also to producing the kind of skilled and responsible citizens that free markets ultimately require. Moreover, preserving the integrity of our social fabric by minimizing the divisions that can rend society often requires ­government policies — to reduce inequality or ensure access to jobs, education, ­housing, or health care — that can in turn undercut growth and prosperity. Neither innovation nor cohesion can do without the other, but neither, it seems, can avoid undermining the other.
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Air Force Completes Killer Micro-Drone Project | Danger Room | Wired.com

  • But military budget documents note that Air Force engineers were successful in “develop[ing] a Micro-Air Vehicle (MAV) with innovative seeker/tracking sensor algorithms that can engage maneuvering high-value targets.”
  • But these have three significant drawbacks.


    First, you can never be quite sure of what you hit.

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04 Jan 10

War? There's an iPhone app for that | Technology | guardian.co.uk

  • The first application in its plans, called One Force Tracker, uses satellite positioning and mobile networks to give soldiers constantly updating field maps that track the position of friendly troops and enemy fighters in real time.

    The program – dubbed a "situational awareness application" by Raytheon executives – would combine data from many sources to try and give an accurate picture of hotspots such as sniper hideouts and vantage points. Troops could also use their iPhones for secure communication, said the company.

The Taliban just killed the humans who guide our drones. - By William Saletan - Slate Magazine

  • By some accounts, the militants are so rattled that they're abandoning the mountains and moving to Pakistani cities, hoping the drones won't dare to strike there.
  • How can our enemies fight back? By targeting the machines' weak link: us.
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18 Dec 09

untitled

  • The real challenge, then, may be to explain why we do not live in a weakless universe.

Looking for Life in the Multiverse: Scientific American

  • The second reason to suspect the existence of the multiverse is that one quantity still seems to be finely tuned to an extraordinary degree: the cosmological constant, which represents the amount of energy embodied in empty space. Quantum physics predicts that even otherwise empty space must contain energy. Einstein’s general theory of relativity requires that all forms of energy exert gravity. If this energy is positive, it causes spacetime to expand at an exponentially accelerating rate. If it is negative, the universe would recollapse in a “big crunch.” Quantum theory seems to imply that the cosmological constant should be so large—in the positive or negative direction—that space would expand too quickly for structures such as galaxies to have a chance to form or else that the universe would exist for a fraction of a second before recollapsing.
  • Thus, the cosmological constant seems to be fine-tuned to an exceptional degree.
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Looking for Life in the Multiverse: Scientific American

  • We do not think that this is necessarily the case, for two reasons. The first comes from observation, combined with theory. Astronomical data strongly support the hypothesis that our universe started out as a tiny patch of spacetime, perhaps as small as a billionth the size of a proton, which then went through a phase of rapid, exponential growth, called inflation. Cosmology still lacks a definitive theoretical model for inflation, but theory suggests that different patches could inflate at different rates and that each patch could form a “pocket” that can become a universe in its own right, characterized by its own values for the constants of nature

Looking for Life in the Multiverse: Scientific American

  • In our universe, supernova explosions disperse the newly synthesized elements into space, and synthesize more of the elements themselves. Supernovae can be of several types: in the weakless universe, the supernova explosions caused by collapsing ultramassive stars would fail, because it is the emission of neutrinos, produced via the weak-force interactions, that transmits energy out of a star’s core so as to sustain the shock wave that is causing the explosion. But a different type of supernova—the thermonuclear explosion of a star triggered by accretion, rather than by gravitational collapse—would still take place. Thus, elements could be dispersed into interstellar space, where they could seed new stars and planets.
  • Chemistry, on the other hand, would be very similar to that of our world. One difference would be that the periodic table would stop at iron, except for extremely small traces of other elements. But this limitation should not prevent life-forms similar to the ones we know from evolving. Thus, even a universe with just three fundamental forces could be congenial to life.
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Looking for Life in the Multiverse: Scientific American

  • Without the strong nuclear force to bind quarks into protons and neutrons and those into atomic nuclei, matter as we know it would not exist. Without the electromagnetic force, there would be no light; there would also be no atoms and no chemical bonds. Without gravity, there would be no force to coalesce matter into galaxies, stars and planets.


    The fourth force, the weak nuclear force, has a subtler presence in our everyday life but still has played a major role in the history of our universe. Among other things, the weak force enables the reactions that turn neutrons into protons, and vice versa.

  • Without the weak nuclear force, then, it seems unlikely that a universe could contain anything resembling complex chemistry, let alone life. Yet in 2006 Perez’s team discovered a set of physical laws that relied on only the other three forces of nature and still led to a congenial universe.
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Looking for Life in the Multiverse: Scientific American

  • Several physicists have argued that a slight change to one of the laws of physics would cause some disaster that would disrupt the normal evolution of the universe and make our existence impossible. For example, if the strong nuclear force that binds together atomic nuclei had been slightly stronger or weaker, stars would have forged very little of the carbon and other elements that seem necessary to form planets, let alone life. If the proton were just 0.2 percent heavier than it is, all primordial hydrogen would have decayed almost immediately into neutrons, and no atoms would have formed. The list goes on.
  • Our recent studies, however, suggest that some of these other universes—assuming they exist—may not be so inhospitable after all. Remarkably, we have found examples of alternative values of the fundamental constants, and thus of alternative sets of physical laws, that might still lead to very interesting worlds and perhaps to life. The basic idea is to change one aspect of the laws of nature and then make compensatory changes to other aspects.
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17 Dec 09

AD Logons and Network Traffic | NetworkWorld.com Community

  • The traffic that you’re likely to see during a domain logon spans several protocols. Early in the process you are likely to see some Kerberos traffic (protocol KRB5 for example) which has to do with authentication and the issuance of “tickets” that grant access to the network. A bit later you may see some SMB traffic (Server Message Block) that sets up network drive mappings for the client. Around this time you may also see some DNS traffic designed to retrieve information about Active Directory site configuration.
  • Some LDAP traffic will also show up, for example, so that the client can learn about the various “naming contexts” it should use when communicating with AD; you’ll need to do a lot of drilling down to find the “meat” of some of these LDAP requests and responses.
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Wireshark Errors - Or Are They? | NetworkWorld.com Community

  • Because Wireshark captures outbound packets before they actually get to the hardware, it doesn’t see that the NIC is applying the correct TCP checksums, and so it flags an error.
  • A little research with a good book on TCP could raise a concern that you’re experiencing lost packets, but that may not be what’s happening. This message lets the sender know that the receiver got a packet out of order. But that can happen sometimes and isn’t necessarily indicative of trouble. If you get a lot of packets out of order at one time, say three or four in a row, then it could be that there is a problem, in which case you can move your capture point further upstream to see if the DUP ACK messages disappear at some point. But seeing this message occasionally is normally not a cause for concern.
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15 Dec 09

Book Review: Last Exit to Utopia - WSJ.com

  • It concerns itself primarily with the failure of much of the French left to come to grips with the collapse of communism and the exposure of its innumerable crimes.
  • What's more, the book's themes continue to resonate today, when murderous ideologies still compete for legitimacy and "enlightened" understanding by the Western intelligentsia.
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A Speculative Post on the Idea of Algorithmic Authority « Clay Shirky

  • and I used my remarks to observe that one of the things up for grabs in the current news environment is the nature of authority.
  • I called this tendency algorithmic authority.
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Dishwashers, and How Google Eats Its Own Tail

  • This is, of course, merely a personal example of the drive-by damage done by keyword-driven content -- material created to be consumed like info-krill by Google's algorithms. Find some popular keywords that lead to traffic and transactions, wrap some anodyne and regularly-changing content around the keywords so Google doesn't kick you out of search results, and watch the dollars roll in as Google steers you life-support systems connected to wallets, i.e, idiot humans.

    Google has become a snake that too readily consumes its own keyword tail. Identify some words that show up in profitable searches -- from appliances, to mesothelioma suits, to kayak lessons -- churn out content cheaply and regularly, and you're done. On the web, no-one knows you're a content-grinder.

    The result, however, is awful. Pages and pages of Google results that are just, for practical purposes, advertisements in the loose guise of articles, original or re-purposed.
  • Google has become a snake that too readily consumes its own keyword tail. Identify some words that show up in profitable searches -- from appliances, to mesothelioma suits, to kayak lessons -- churn out content cheaply and regularly, and you're done. On the web, no-one knows you're a content-grinder.
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How Google Can Combat Content Farms

  • Perhaps we should first answer the question: why should Google be worried about the quality issue? After all, it has a virtual monopoly on the search market. The obvious and PR answer is that Google wants to provide the best search results possible for its users. But there is another big reason why Google needs to do something. So-called "quality" content providers are already well advanced in routing around Google, or at least making them less relevant.
  • the company already makes the "vast majority of its revenues" from subscription-based business models targeted to "vertical and niche markets." Reuters also provides services as well as just content. Bloomberg is another leading media company finding success with this strategy.
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14 Dec 09

The Question of Quantum Chaos § SEEDMAGAZINE.COM

  • Chaotic movement is unstable and unpredictable, but completely deterministic, meaning that it’s controlled by its starting conditions.
  • Chaos has been observed at nearly every level of the natural world, from the movement of the planets to the patterns of wind to the beating of the human heart. In fact, almost everything in nature is chaotic.



    But at the level of atoms, our definition of chaos has run into a problem.

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11 Dec 09

Why The Magazine Industry Wants Its Own App Store. It’s All About The Data.

  • The real reason they want their own store is the customer data. Magazine companies may look like paper companies, with a little art direction thrown in. But at their core, magazine companies are database companies. The way they make money is by knowing who their readers are and marketing to them by where they live and who they are. For nearly every subscriber, they have a credit card number. And they have whole departments which do nothing but massage the data to figure out who to target for advertising purposes and where the profits are. I’ve seen this machine in action. The database people hold the secret levers of power inside magazine companies.
  • If they cede their digital magazines to Apple, then they lose those credit card numbers and all of that customer data. This joint venture is all about keeping that direct, paying relationship with consumers. It is about controlling the data.
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10 Dec 09

U.S. Military Joins CIA’s Drone War in Pakistan | Danger Room | Wired.com

  • On that glowing screen is a digital map of Afghanistan, showing the position of every U.S. Air Force drone, every fighter jet, every bomber, and every tanker aircraft with a teal dot.
  • The military supplies the aircraft. It monitors the flights in and out of Pakistan. And, on occasion, Air Force pilots remotely fly their own drone missions over Pakistan. On that digital map are the far end of the warehouse, there’s a note reminding troops exactly how much notice they must give before U.S. military planes enter Pakistani airspace.
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