Monday, November 12, 2007
NYT Most blogged list
It was only today, however, that I learned the NYT has added a most blogged. The sequence and contents are a bit different.
I'll start comparing the two. It'll be interesting to see which I like better.
Sunday, November 11, 2007
Relativity + QM + symmetry = QED
Higgs 101 | Cosmic VarianceSymmetry, in this case the U(1) transformation invariance, is given a natural place in this discussion of the Higgs.
...Here comes the miracle: if you impose upon our relativistic, complex, quantum-mechanical wavefunctions the requirement that they be invariant under these U(1) transformations, then you get electromagnetism. Conservation of electric charge. A massless photon. QED - quantum electrodynamics, in all its 12-digit precision glory. Electromagnetism is a simple consequence of the U(1) symmetry of any wavefunction....
Nice summary!
How to be Keynesian monetarist supply sider - econ 101
Grasping Reality with Both Hands: Brad DeLong's Semi-Daily JournalI love the bloggers I read. Cheapest, quickest sense-rendering interface I've known.
I tell my undergraduates:
At a time horizon of 0-3 years, be a Keynesian: the most important things are the fluctuations in unemployment, in real demand, and in capacity utilization.
At a time horizon of 3-8 years, be a demand-side monetarist: you can assume (provisionally) that fluctuations in employment, real demand, and capacity utilization die out; the most important things are the fluctuations in the composition of real demand (investment vs. consumption vs. government vs. net exports) and in inflation- and deflation-causing nominal demand assuming (provisionally) stable growth of the economy's productive capacity.
At a time horizon of 8 years or greater, be a sane supply-sider: the most important things are the processes of investment in physical, human, and organizational capital that raise the economy's productive capacity.
Friday, November 09, 2007
Small wars journal: A crisis of honor
Waterboarding is Torture… Period (Links Updated # 9) (SWJ Blog)I'm tired and disappointed that six Democrats joined the entire GOP to fail America.
I’d like to digress from my usual analysis of insurgent strategy and tactics to speak out on an issue of grave importance to Small Wars Journal readers. We, as a nation, are having a crisis of honor.
Last week the Attorney General nominee Judge Michael Mukasey refused to define waterboarding terror suspects as torture. On the same day MSNBC television pundit and former Republican Congressman Joe Scarborough quickly spoke out in its favor. On his morning television broadcast, he asserted, without any basis in fact, that the efficacy of the waterboard a viable tool to be used on Al Qaeda suspects....
Ok, now force yourself to follow the link and read the article. The next time some khmer wannabe tells you that torture is not torture, or torture is a good and manly thing, just give 'em Malcom Nance's URL.
WW I: How many survivors are there?
The men could pass for 10-30 years younger than their current age. That's not too surprising -- to live this long they must have very unusual genes. Their aging rates are probably in the slowest 0.0000001 %ile.
Yellowstone - the bomb next door
Then Santorini blew.
I was reminded of that today, as newspapers tells us that the Yellowstone caldera is rising. I liked the Ars Technica summary:
Yellowstone rechargesIf Yellowstone were to erupt there are a lot of things Americans could stop worrying about.
It's important to emphasize that, even though this activity is clearly significant, it's not a sign that you should stop saving for retirement. "Although the geodetic observations and models do not imply an impending volcanic eruption or hydrothermal explosion, they are important evidence of ongoing processes of a large caldera that was produced by a supervolcano eruption." For now, it appears that Yellowstone is just reminding us that it's worth paying attention to.
Happily, there's no sign of that happening anytime soon:
...The team is quick to reassure that no eruption looms; there are no seismic harbingers. Instead, earthquake activity in the valley has dropped by half to fewer than 1000 tremors a year. Somehow, faster uplift and fewer earthquakes are related to what's going on some 80 kilometers below Yellowstone, where a plume of magma fuels the area's famous geothermal activity...Basically we're seeing the giant inhale. Eventually he'll gently exhale.
Just as long as doesn't sneeze.
Pogue touches Windows Mobile. Recoils
Problem is, nobody I knew would admit to having one. I couldn't find anyone who did Outlook sync with it. I'd see some phones running Windows Mobile, but the owners seemed furtive and embarrassed. They didn't proselytize.
The silence has been deafening.
Still, I thought, Microsoft has put billions into WM. Surely by now it must be tolerable. If only someone I trusted would review it ...
Pogue has.
Reaching for Apple, Falling Short - David Pogue - New York TimesHe proceeds to ream Windows Mobile. Brutal, but efficient.
...Windows Mobile 6 is a mess. Common features require an infinitude of taps and clicks, and the ones you need most are buried in menus. Apparently the Windows Mobile 6 team learned absolutely nothing from Windows Mobile 1, 2, 3, 4 and 5
Wow.
T-Mobile thought they could challenge the iPhone by using this as the heart of their most strategic phone?
Double wow.
This reminds me of my RAZR. A pretty facade over a reptilian soul. This should give Apple another share price boost.
Google's phone number and SSN based persona cloning
This morning I wrote about persona cloning at the heart of social network fraud. I didn't, of course, know that Cringely had just published a fascinating example of persona cloning that, in a bizarre way, may have benefits for the victim. I've a few excerpts here, but this is one of Cringely's best. Read the whole thing ...
It's a very fine piece of work, particularly the reporting on SSN overuse. That's rather relevant to those of us in the healthcare business -- we use the SSN as part of our statistical approach to establishing unique identities. We may have overestimated its value by an order of magnitude. Small detail.I, Cringely . The Pulpit . Getting to Know You | PBS
While politicians and the U.S. Census Bureau may disagree on how many illegal aliens are living in the United States, the big credit reporting agencies have a pretty solid handle on the number and it is 17 million. That's 17 million adults of unproved nationality who have ongoing financial relationships with businesses or — believe it or not — governments...
... it isn't in any way close to the total number of U.S residents who have financial identities not tied to a Social Security number. That would be 37 million, meaning there are 20 million participants in the U.S. gray economy who aren't illegal, who are legitimate citizens. This means about 10 percent of U.S. residents are financially invisible, or think they are.
... Ah, but they do have Social Security numbers, just not their own. You need a Social Security number to sign up for utility services, for example. No Social Security number, no electricity, gas, phone, or satellite TV. So what's a poor alien to do? They go down to some local hangout and BUY a Social Security number to give to the utility. This has to be a legitimate number or it won't fly with utility computer systems, but does it have to be the customer's own number? ...
...there is a tacit agreement between the parties that a Social Security number must be provided because that's the rule, but if it happens to be someone else's Social Security number, well that's okay.
The funny thing about this is the impact it has to have on the person who was originally assigned that Social Security number by the U.S. government. Rather than hurt their credit it actually helps because there is so much evidence that they are good at paying their bills.
... some individual Social Security numbers are in use right now by UP TO 3,000 PEOPLE and it isn't at all unusual for a borrowed number to be used by 200-1,000 people at the same time. Remember that most of these folks AREN'T illegal aliens...
... Think for a moment of the impact a free mobile phone service will have on the mobile phone market. Why would I continue with Verizon or AT&T or Sprint or T-Mobile or Alltel or whomever if I could get the same or better service for free? Yeah, but the way to make the service free is by running ads on it and those ads would be contextually linked somehow to where or who you were calling and isn't that creepy, especially for business customers...
Which brings us back to the credit bureau. It would be very much in Google's interest to own one of the big three credit reporting agencies, because your mobile phone number is the most practical supplement for the Social Security number as a financial identifier.
Take all the web usage and YouTube video data Google has been acquiring about us all, glue it to our data down at the credit bureau, tie it to our mobile phone number and our mobile activity, then use the resulting product as both an information service and a database for targeting ads and you have Super Google — the most valuable company on Earth and entirely based on metadata...
Really, Cringely covers a lot of ground. Things are unlikely to work out so neatly, but the feel of it is right. The only thing I can add is that Cringely forgot about Google's GrandCentral. I just checked and my GC account still works [1]. Really, I'd forgotten about this digital identify of mine -- just one of many.
GrandCentral is your "personal phone number for life" with integrated message routing. It's a logical center piece of Google's identity strategy.
We're definitely getting close to the day when we're chipped at birth [2] and that number is our phone number for life ...
[1] If you put a GC number on your corporate business card you retain the number when you leave work. So you don't need to worry about losing your "identity" number when you lose your corporate cell phone.
[2] Hmm. Wonder if we could use the umbilical cord stump for chip insertion .... Just joking.
Fraud technologies use persona cloning to attack social networks
Successful frauds have always exploited social connections. New age fraud now leverages social networks to the same end (emphases mine) ...
E-Mail Scammers Ask Your Friends for Money - Bits - Technology - New York Times Blog
... The scammer somehow breaks into a victim’s Web-based e-mail account. He then impersonates the victim and sends an emergency plea for help to everyone in the account’s address book, asking them to wire money to Nigeria. The e-mail includes some variation on a story about getting mugged or losing a wallet while on a trip to Nigeria.
This happened recently to Drew Biondo of Port Jefferson, N.Y. He said he was at home early one morning when his wife alerted him to an e-mail she had received from his Yahoo address about his Nigerian money troubles. He scrambled to try to regain control over his account, but trying to find a phone number for an actual human at Yahoo was “ridiculously difficult,” he said.
Mr. Biondo, a public relations executive, used the Yahoo account for work e-mail and had about 600 people in his contact list, many of them journalists. He said he soon experienced “an influx of phone calls from every reporter I’ve ever spoken to,” including some he had not heard from in years. “I credit this Nigerian scammer with one thing: he made me feel good inside because these people cared enough to drop me a phone call.”
Yahoo asked Mr. Biondo for various proofs of his identity, including the long-forgotten answer to a security question he had set up ten years earlier. Two and a half days after it all began, he successfully logged into his account and sent out a mass mailing: “The long Nigerian nightmare is over.”
The NYT blog post has many other examples. This method is pretty primitive of course, the next generation will leverage Google OpenSocial APIs or Facebook APIs to further leverage social network technologies.
In all cases the fundamental ploy is identity assumption and then exploitation of entities that "trust" the identity. A Yahoo email account is a form of identity, just like your Google/Gmail persona, LinkedIn account, Facebook and Amazon profiles, checking account, credit card accounts, Federal social security account, drivers license, passport and biometric account holder. Not to mention various overt standards for identity management.
Identity theft is a misleading term. It implies the identity is gone completely, and it implies a singular identity. Perhaps persona cloning is a better term.
We all have dozens of identities (personas) with varying degrees of power, authority, attachment, control and manageability. Each identity has a set of transaction-specific reputations.
Loss of control of any of these identities will expose one's reputation circle to exploits - as well as one's own life.
It would be nice if we would start thinking a bit about this topic.
Nice, but unlikely.
PS. I really, really, don't like "security questions". Dumbest idea ever. Note how well it worked here.
Thursday, November 08, 2007
Race and dating preferences
An economist solves the mysteries of dating. - By Ray Fisman - Slate MagazineSo it's the women who decide how much inter-group mating occurs ... at least among Northern American daters.
...Another clear gender divide, this one less expected, emerged in our findings on racial preferences, reported in a forthcoming article in the Review of Economic Studies. Women of all the races we studied revealed a strong preference for men of their own race: White women were more likely to choose white men; black women preferred black men; East Asian women preferred East Asian men [jf: note the next paragraph contradicts this statement!]; Hispanic women preferred Hispanic men. But men don't seem to discriminate based on race when it comes to dating. A woman's race had no effect on the men's choices.
Two wrinkles on this: We found no evidence of the stereotype of a white male preference for East Asian women. However, we also found that East Asian women did not discriminate against white men (only against black and Hispanic men). As a result, the white man-Asian woman pairing was the most common form of interracial dating—but because of the women's neutrality, not the men's pronounced preference. We also found that regional differences mattered. Daters of both sexes from south of the Mason-Dixon Line revealed much stronger same-race preferences than Northern daters.
It's odd that the editor didn't notice that the paragraphs were contradictory. White, black, and Hispanic women were group specific, east asian women were ok with east asian or white men.
Dershowitz makes the case
This Modern World: If the Nazis could make it work, why not us?:
... "You know, I was on the fence there about torture, until Dershowitz pointed out it really worked well for the Nazis! Color me convinced!"
Employment benefit complexity: we are sheep
My wife and I have just selected our family's employment benefits for 2008. There were 4 basic health plans, two indemnity and two "health savings accounts" (they used some other name this year). In addition, one could create another 11 variants of one of the four plans.
The plans had wildly different pre-tax monthly paycheck deductions (so the true cost varies depending on one's tax bracket). They also have different providers, different deductibles, different out-of-pocket maximums (but are they really maximums?), different networks, and a complex mix of co-pays and percent uncovered for each transaction. Not to mention x-rays and labs.
Some costs that might be post-tax dollars can be covered by a pre-tax flexible spending account -- but you must be sure to spend all of it. Then there's a Dependent Care account, but be sure your spouse earns at least as much as what one claims -- or that's lost too.
If I had a team of lawyers, statisticians, and software developers, I could create simulations based on our known risk factors and run them against the plans. I would use Monte Carlo methods to create random variations around means, and then produce a probability distribution of likely costs.
Oh, wait a minute. It's the insurance companies that have that team. We just have ... a coin toss.
I feel like I've just signed a contract with Satan -- or, worse, Sprint Minnesota. I had to sign the contract, but I know it's hopeless. My immortal soul will be stuck in Hell
Do the French put up with this kind of stupidity? I like to imagine not.
Americans are sheep.
Complexity + Tight Coupling = Catastrophe
Years ago I was keen on the strategic advantages of loosely coupled software solutions and an associated ecosystem.
I'd forgotten that until recently, when both "ecosystem" and "coupling" became fashionable terms.
Good, they're important concepts.
I agree with this, for example: Complexity + Tight Coupling = Catastrophe.
The genetic engine is very loosely coupled. Not a bad idea really.
File for the mythical startup - operations
I have a small collection of these "pearls" of startup wisdom. Come the day I'll be able to find them all, using my newest tag - "startup" (it'll take a while for me to tag the back posts):
Operations is a competitive advantage... (Secret Sauce for Startups!)
...In my experience it takes about 80 hours to bootstrap a startup. This generally means installing and configuring an automated infrastructure management system (puppet), version control system (subversion), continuous build and test (frequently cruisecontrol.rb), software deployment (capistrano), monitoring (currently evaluating Hyperic, Zenoss, and Groundwork). Once this is done the "install time" is reduced to nearly zero and requires no specialized knowledge. This is the first ingredient in "Operations Secret Sauce".
This kind of scaleability becomes really interesting when you find yourself suddenly popular, as iLike did when it launched its Facebook app and had to scale up fast (Radar)...
Major League Baseball leads fight for digital freedom
Yeoman's work! MLB is doing a wonderful job discrediting the entire digital rights management industry.
Major League Baseball is thus this week's winner of the Gordon's Notes' "Digital Freedom" medal.
Sometimes the stupid also serve.