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Strong opinions, weakly held

Author: Rafe (page 78 of 989)

Political science versus political journalism

The world of sports is in the latter stages of a revolution of data-driven analysis. The ultimate question in sports analysis is, what determines whether a team wins or loses? Traditionally, most people believed that the determining factors were those that sports journalists liked to write about and that coaches felt like they could control.

Back in the day, everyone talked about leadership, and chemistry, and clutch hitting, and all sorts of other human factors that were unquantifiable. The numbers show that the truth is more boring than that — once you learn how to properly measure player performance, statistics show that teams with better players usually win. When teams underperform or outperform their statistical predictions, more often than not it’s due to luck.

A classic example of received wisdom from the institutions of sport is that great teams win most close games. What data analysis teaches us is that performance in close games is essentially random, and that great teams don’t play in as many close games — they tend to beat inferior teams badly. That’s what makes them great.

The new insights that quantitative analysis has brought to sports are applicable to many fields, including politics. That is perhaps best illustrated by the fact that Nate Silver, once known to baseball fans as creator of the PECOTA system for forecasting the performance of baseball players, has become famous as a political analyst, specializing in breaking down polling data and using it to make predictions.

The adjustment to a more data-driven approach to analyzing sports has been tough on sports journalists, because increasingly they are being forced to acknowledge that their impressionistic analysis of sports may be entertaining, but isn’t very informative. Political journalists are just starting to face the same challenge to their positions of authority. As political scientists have improved their data-driven analysis, it has become increasingly clear that most of the things that political writers (and indeed, politicians) think are are important, really aren’t.

This was all a very long segue into a link to an article about the tension between political scientists and political journalists in the Columbia Journalism Review, Embrace the Wonk. Here’s the crux:

That perspective differs from the standard journalistic point of view in emphasizing structural, rather than personality-based, explanations for political outcomes. The rise of partisan polarization in Congress is often explained, in the press, as a consequence of a decline in civility. But there are reasons for it—such as the increasing ideological coherence of the two parties, and procedural changes that create new incentives to band together—that have nothing to do with manners. Or consider the president. In press accounts, he comes across as alternately a tragic or a heroic figure, his stock fluctuating almost daily depending on his ability to “connect” with voters. But political-science research, while not questioning that a president’s effectiveness matters, suggests that the occupant of the Oval Office is, in many ways, a prisoner of circumstance. His approval ratings—and re-election prospects—rise and fall with the economy. His agenda lives or dies on Capitol Hill. And his ability to move Congress, or the public, with a good speech or a savvy messaging strategy is, while not nonexistent, sharply constrained.

The important take away for people who are consumers of political news is that press coverage of politics on a day to day basis is at best useless and at worst pernicious. What really matters is that there is a blowout spewing millions of gallons of oil into the Gulf of Mexico and that it probably won’t be fixed until August. The degree to which President Obama seems to be upset about it doesn’t matter. What really matters is that the unemployment rate is right around 10%. What doesn’t matter is that Congress is holding votes on Don’t Ask Don’t Tell rather than doing things that create the appearance that they’re working on the economy.

I try to pay attention to what our actual problems are and the degree to which we’re making progress in solving them. It turns out that not only is this what’s important in our day to day lives, but it’s what’s important politically as well.

Steve Jobs on publishing

I don’t want to see us descend into a nation of bloggers.

Steve Jobs, talking about people paying for content.

Update: Scott Rosenberg responds.

Tyler Cowen on poor explanations

Tyler Cowen, in a post on why politicians aren’t more aggressively trying to stimulate aggregate demand, writes:

In general you should be suspicious of explanations which take the form of “if only the good people would all band together and get tough.”

The corollary is that attributing bad decisions to stupidity or evil doesn’t do much good, either. People make stupid and evil decisions for reasons, and it’s the reasons that matter.

How Fisher-Yates shuffling works

Eli Bendersky explains why the Fisher-Yates shuffling algorithm works:

What I do plan to do, however, is to explain why the Fisher-Yates algorithm works. To put it more formally, why given a good random-number generator, the Fisher-Yates shuffle produces a uniform shuffle of an array in which every permutation is equally likely. And my plan is not to prove the shuffle’s correctness mathematically, but rather to explain it intuitively. I personally find it much simpler to remember an algorithm once I understand the intuition behind it.

This is the algorithm that the Collections.shuffle() method in Java uses.

Our misplaced faith in technology

I’ve been reading about the oil spill voraciously, but haven’t posted about it. What is there to say? It’s an incredibly difficult problem that was caused by cascading failures and perhaps bad judgement on the part of BP. I say perhaps, because it also involved very bad judgement on the part of the United States government, which granted licenses to oil companies to drill deep water wells even though the oil companies were not prepared to deal with blowouts that occur at depth.

A couple of pieces really hit home for me this week. The first is Ezra Klein’s noting that those “bound to happen eventually” crises do occur:

The last few years have been an ongoing seminar on the reality of serious risk. Very bad things that look likely to happen eventually do happen. The financial crisis, the Massey coal-mine disaster, the Greek debt crisis, the BP oil spill. The last few years have also been an ongoing seminar in the many ways that we ignore risks that we don’t like to think about, and the role that our evasions play in making the eventual catastrophes worse than they needed to be.

His point is that global warming is perhaps the biggest crisis of this kind that we’re not addressing, but I think his larger point is well taken.

The second is Elisabeth Rosenthal’s New York Times article that takes on our faith that we will always develop the technology we need to fix the problems that we create. Increasingly, that faith looks misplaced.

In this specific case, what stuns me is the amount of discretion BP had in terms of how they drilled and capped the well. There were many points at which they could have made more conservative (and expensive) choices that would have reduced the risk of the blowout, but BP, at its own discretion chose the cheaper, faster approach. As the Wall Street Journal article points out, BP was paying $1 million a day to keep the drilling platform over the well. The incentive to cut corners is strong when millions of dollars are at stake, and the odds of a blowout destroying the rig, killing workers, and spilling millions of gallons of crude oil into the ocean seems remote. It sure seems like all of the precautions BP skipped should be mandated by law.

John Gruber on clipboard manipulation

John Gruber weighs in on the increasing popularity of a service that adds a citation to the user’s clipboard when they copy text from a Web site:

It’s a bunch of user-hostile SEO bullshit.

The first time I saw it in action, I was amused by the novelty, but these days I’m in the Gruber camp. What I hadn’t realized is that not only does the service (provided by Tynt) add a citation to whatever you copy, but it also notifies the server that you copied text in the first place.

He also explains how to block Tynt using the hosts file.

Practical open source

Tim Bray on answering questions about Android for developers:

Quite a few of the developers who walked up haven’t learned about Practical Open Source; that you can answer an immense number of questions by just downloading the system source code and plowing through it.

One of my standard two part interview questions of late is, “When is the last time you solved a problem by looking at the source code for a library or framework you use?” and then getting them to explain what they found out. I consider it a strong warning sign when a developer doesn’t bother to download the source to the open source tools they use or isn’t willing or able to answer their own questions by reading the source code.

Treme episode 7 essential reference

Sorry for the late posting of this week’s reference. I’ll blame it on Lost fatigue.

This week’s episode was the toughest yet. We saw examples of two ways to die in the aftermath of Katrina. The first was death while in police custody, and the second was the death of the older trombone player. His story reminded me of Clarence ‘Gatemouth’ Brown, the famous bluesman who passed away shortly after the storm in September, 2005.

Of course be sure to check out the New Orleans paper’s installment of Treme explained for this week, which has lots of information about the housing projects that were at the center of this week’s episode. It also explains the context of the “green dots” reference.

Patrick Jarenwattananon interviews Josh Jackson about this week’s episode for NPR.

Both outlets discuss Cajun music, which finally got a little screen time this week. Tipitina’s was previously mentioned on the show, and this week the Pine Leaf Boys played their gig there.

The New Orleans Musicians’ Clinic organized the jazz bands in the airport. The clinic is a worthy cause, it provides health care services to musicians, most of whom have incomes well south of the poverty line.

We’ve seen a lot of the ugly side of law enforcement in Louisiana on Treme, but it’s not all bad. The other day I saw an article on a prisoner-staffed hospice program at Angola prison that has transformed it from one of America’s most violent maximum security prisons to one of the least violent.

Finally, the scene where Albert Lambreaux was arrested while squatting at the projects reminded me of the lyrics to Mardis Gras Indians chant “Indian Red,” featured heavily in episode 3:

We won’t bow down
Down on that ground
Because I love to hear you call my Indian red

You don’t have to use your imagination to figure out where those lyrics came from.

Sentences that provoke regret

From a New York Times article on a federal appeals court decision denying detainees access to US courts:

The decision was a broad victory for the Obama administration in its efforts to hold terrorism suspects overseas for indefinite periods without judicial oversight.

The court has ruled that as long as the government detains prisoners in Afghanistan rather than the US, they are not entitled to the same process as they would be if they were detained somewhere else, regardless of where they were captured. That’s quite a loophole.

In the meantime, Britain’s new government is confronting its complicity in torture and looking to roll back surveillance powers and other impingements on civil liberties. I’m envious and more disappointed than ever in the Obama administration.

Pushing the boundaries of privacy

Tim O’Reilly argues that the nature of privacy is changing, and that it would be worse for companies not to experiment in that realm than it is for companies like Facebook to push those boundaries and occasionally run into trouble:

The world is changing. We give up more and more of our privacy online in exchange for undoubted benefits. We give up our location in order to get turn by turn directions on our phone; we give up our payment history in return for discounts or reward points; we give up our images to security cameras equipped with increasingly sophisticated machine learning technology. As medical records go online, we’ll increase both the potential and the risks of having private information used and misused.

We need to engage deeply with these changes, and we best do that in the open, with some high profile mis-steps to guide us. In an odd way, Facebook is doing us a favor by bringing these issues to the fore, especially if (as they have done in the past), they react by learning from their mistakes. It’s important to remember that there was a privacy brouhaha when Facebook first introduced the Newsfeed back in 2006!

It’s a well-considered post, but I think he lets Facebook off a little too easily. To me, Facebook has committed one cardinal sin: expanding access to information that has already been posted without getting permission from users. If I post a photo to Facebook and only my friends can see it, those are the only people who should ever be able to see it, unless I give Facebook permission to show it to more people. Any other course of action is hostile to users, and Facebook and other sites deserve to be pilloried for making those kinds of mistakes.

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