Category Archives: news

How do you share your New York Times?

My op/ed about math teaching and Little League coaching is the most emailed article in the New York Times today.  Very cool!

But here’s something interesting; it’s only the 14th most viewed article, the 6th most tweeted, and the 6th most shared on Facebook.  On the other hand, this article about child refugees from Honduras is

#14 most emailed

#1 most viewed

#1 most shared on Facebook

#1 most tweeted

while Paul Krugman’s column about California is

#4 most emailed

#3 most viewed

#4 most shared on Facebook

#7 most tweeted.

Why are some articles, like mine, much more emailed than tweeted, while others, like the one about refugees, much more tweeted than emailed, and others still, like Krugman’s, come out about even?  Is it always the case that views track tweets, not emails?  Not necessarily; an article about the commercial success and legal woes of conservative poo-stirrer Dinesh D’Souza is #3 most viewed, but only #13 in tweets (and #9 in emails.)  Today’s Gaza story has lots of tweets and views but not so many emails, like the Honduras piece, so maybe this is a pattern for international news?  Presumably people inside newspapers actually study stuff like this; is any of that research public?  Now I’m curious.

 

 

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Olive oil and nuts beat a low-fat diet that’s not low-fat

Great-looking results from a big randomized diet study reported today in the New York Times:

About 30 percent of heart attacks, strokes and deaths from heart disease can be prevented in people at high risk if they switch to a Mediterranean diet rich in olive oil, nuts, beans, fish, fruits and vegetables, and even drink wine with meals, a large and rigorous new study has found….

Scientists randomly assigned 7,447 people in Spain who were overweight, were smokers, or had diabetes or other risk factors for heart disease to follow the Mediterranean diet or a low-fat one.

Low-fat diets have not been shown in any rigorous way to be helpful, and they are also very hard for patients to maintain — a reality borne out in the new study, said Dr. Steven E. Nissen, chairman of the department of cardiovascular medicine at the Cleveland Clinic Foundation.

Now, I am not a low-fat dude.  Long ago I dated somebody who was into Dean Ornish and every time she “sauteed” onions in water a little piece of me died.  I pour a lot of olive oil on things, because I like it (especially Frantoia, which the guys at the Italian grocery in the Trenton Farmer’s Market turned me on to when I lived in Princeton) and because mainstream nutritional wisdom has been promoting monounsaturated fats for a long time now.  But I do think low-fat gets kind of a bad rap from the NYT piece.  Even more so in some of the other coverage, like the LA Times, which headlines their story “Mediterranean diet, with olive oil and nuts, beats low-fat diet.”  The Times, at least, points out far down in the piece that the “low-fat” group, while counseled to reduce fat, didn’t actually do so.  To get numbers, you have to go to the supplemental material of the original paper.  There, you find that the Mediterranean eaters were getting 41% of their calories from fat, while the “low-fat” arm got 37%.  A low-fat diet is 22%.  Random googling suggests that most vegans are getting 20%-30% of their calories from fat.

In other words, the study doesn’t really show that the Mediterranean diet is better for you than eating low-fat; it shows that hardly anybody is capable of eating low-fat, which is a different thing entirely.

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Wisconsin puts the MOO in MOOC

UW-LaCrosse started it, launching an online math course, “College Readiness.” with the help of a grant from the Gates Foundation.  A lot of the energy around MOOCs has centered on advanced courses:  machine learning, business analytics, and so on.  The kind of thing that gets funders and nerds excited.  But funders and nerds are already educated!  If MOOCs are to provide the educational equity they promise, they’ve got to do it at the low end — giving kids access to a better math course than their understaffed, underresourced high school can provide.  Is there a demand for basic, unflashy math instruction online?  Seems like it:  a thousand people have signed up, twice as many as UWLC expected, including an 83-year-old and an 11-year-old.  Those are much smaller numbers than Coursera gets for its sexy machine learning course, but I’ll bet the gap in number of finishers will be much narrower; this course is an “I need to,” not an “It would be cool to.”

And now UW-Madison has gotten into the act, announcing yesterday that UW would be offering four courses with Coursera, two to start this fall.

Readers:  would it be a good idea, a bad idea, or some combination of both, for me to propose to teach a number theory MOOC?

 

 

 

 

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The Wall Street Journal‘s headline today:

TEPID JOB GROWTH FUELS WORRY:  Unemployment Rate Hits 7.8% as Economy Stays Sluggish

Doesn’t the word “hits” there kind of make you think the rate rose to 7.8%?  But no, it was 7.8% last month too, and is down from 8.5% at the end of last year.

Meanwhile, the New York Times goes with

JOB CREATION IS STILL STEADY DESPITE WORRY:  Gain of 155,000 Keeps Jobless Rate at 7.8%

which gets the constancy of the unemployment right — but “steady” alone conveys a misleadingly sunny impression.

Cheers to the Milwaukee Journal Sentinel, which rolls it pretty straight down the lane:

JOBLESS RATE STAYS PUT:  U.S. economy adds just 155,000 jobs in its 34th month of subpar growth

It’s steady and tepid!

Framing the jobs report

The GOP’s electoral triumph

You knew there was one, right?  While the national party was crying in its beer, Wisconsin Republicans held the State Assembly and took back the State Senate, undoing the results of last year’s recalls and regaining complete control of the legislative process.  After a December special election to fill the seat left open by Rich Zipperer (best political name of 2012?) the Republicans are expected to hold a Dale Schultz-proof 18-15 majority in the upper chamber.

That’s not such a surprise; a GOP-friendly redistricting generated a slight majority of Republican State Senate districts in this purple state.  More impressive is that Republicans may not have lost any of the healthy majority they hold in the Assembly, an advantage obtained in 2010 when the GOP gained 15 seats out of 96 in play.  That means there are a lot of new Assembly members who are well to the right of their districts.  With the 2012 electorate back to a more normal partisan distribution, how did all these people keep their seats?

My guess is that people just don’t pay much attention to Assembly races, and that the incumbency advantage there is even bigger than it is for federal positions.  After all, it’s reasonably safe to vote for the US Senate candidate nominated by your preferred party; that person’s been vetted at a high level and the chance that they’re an incompetent or a loon can reasonably be considered pretty small.  But a State Assembly candidate?  If the first time you see their name is on Election Day, it’s not totally nuts to go with the incumbent.

My guess is that the Assembly won’t switch control again, or even move close to 50-50, until there’s another Democratic wave election.  Despite the many reasons Democrats have to be happy today, this election wasn’t it.

 

 

 

 

 

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Walker and Obama

Back in June, before the recall election, I argued against the view that a Walker victory spelled trouble for Obama’s re-election campaign in Wisconsin:

“if Walker actually wins by 7, it means there’s no massive shift to the GOP going on in this state, and you’re a broadly popular incumbent President whose hometown is within a half-day’s drive of most of Wisconsin’s population, your prospects here are pretty good…..

In 2010, Walker won as a non-incumbent in a regular election. If he gets the same margin against the same opponent, as a sitting governor, in a recall that not all Democrats think should have happened, I take that as a signal that the state of the electorate has shifted back to something like normal,, from the abnormally Democratic year of 2008 and the abnormally Republican year of 2010.”

In fact, Walker did win by 7.  And I think my assessment of what that meant for the November electorate is looking pretty good!

 

 

 

 

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Obama 5, Romney 3 in the 7th

Lots of people are following Nate Silver’s election tracking over at 538, especially his top-line estimate of the probability that Barack Obama will be re-elected in November.  Silver has that number at 79.7% today.  Sounds like good news for Obama.  But it’s hard to get a gut feeling for what that number means.  Yeah, it means Obama has a 4 in 5 chance of winning — but since the election isn’t going to happen 5 times, that proportion doesn’t quite engage the intuition.

Here’s one trick I thought of, which ought to work for baseball fans.  The Win Probability Inquirer over at Hardball Times will estimate the probability of a baseball team winning a game under any specified set of conditions.  Visiting team down by 4 in the 2nd, but has runners on 2nd and 3rd with nobody out?  They’ve got a 26% chance of winning.  Next batter strikes out?  Their chances go down to 22%.

So when do you have a 79.7% of winning?  If we consider the Obama-Romney race to have started in April or May, when Romney wrapped up the nomination, we’re about 2/3 of the way through — so let’s the 7th inning.  If the visiting team is ahead by 2 runs going into the 7th, they’ve got an 82% chance of winning.  That’s pretty close.  If you feel the need to tweak the knobs, say the first two batters of the inning fail to reach; with two outs in the top of the 7th, bases empty and a 2-run lead, the visitors win 79.26% of the time, just a half-percent off from Silver’s estimate.

So:  Obama 5, Romney 3, top of the 7th.  How certain do you feel that Obama wins?

Update:  (request from the comments)  Silver currently has Obama with an 85.% chance of winning.  That’s like:  home team up 5-3, visitors batting in the top of the 8th, runner on first with one out.

 

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Jonah Lehrer, Niall Ferguson, the lecture economy

They apparently had the same problem — their brand was “person who writes books” but their actual business model became “person who gives lectures for five-figure fees.”  The demands of the two roles are very different.

Ideally, a public lecture should be an advertisement inducing people to read your book and engage with your argument presented in full.  What a disaster if the book becomes an advertisement for the lecture instead.

Update:  Stuff on this theme is all over the place today:  here’s Daniel Drezner on “Intellectual Power and Responsibility in an Age of Superstars” and Justin Fox on “the rage against the thought-leader machine.”  Both pieces are great.

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Higgs

Since someone asked me today: yes, the Stanley Higgs who appears in my novel was named after the Higgs boson. I thought it would add a very slight tinge of cosmic mystery to the character. Not any more, I guess.

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It’s a recall, not an omen

Already time to take back, or at least complicate, the nice things I said about the Times’s Wisconsin coverage.  Today above the fold:

Broadly, the results will be held up as an omen for the presidential race in the fall, specifically for President Obama’s chances of capturing this Midwestern battleground — one that he easily won in 2008 but that Republicans nearly swept in the midterm elections of 2010…

A Marquette Law School telephone poll of 600 likely voters, conducted last week, found Mr. Walker leading 52 percent to 45 percent; the poll’s margin of sampling error was plus or minus 4 percentage points for each candidate.

I suppose I can’t deny that the results “will be held up as” an omen for November’s election by some people.  But those people will be wrong, and the Times should say so.  At the very least they should avoid giving the impression that the recall vote is likely to be predictive of the presidential vote, an assertion for which they give no evidence, not even a quote in support.

I’m just going to repeat what I said in the last post.  Wisconsin is split half and half between Republicans and Democrats.  In nationally favorable Democratic environments (2008) the state votes Democratic.  In nationally favorable Republican environments (2010) the state votes Republican.  At this moment, there’s no national partisan wave, and you can expect Wisconsin elections to be close.  But incumbency is an advantage.  So Walker is winning, and so is Obama. As the Times reports, the Marquette poll has him up 7.  What the Times doesn’t report is that the very same poll has Obama beating Romney by 8.

I guess the recall might be an omen after all — if Walker actually wins by 7, it means there’s no massive shift to the GOP going on in this state, and you’re a broadly popular incumbent President whose hometown is within a half-day’s drive of most of Wisconsin’s population, your prospects here are pretty good.

Arguing against myself:  2006 was also a great year for Democrats nationally, and incumbent Democratic governor Jim Doyle beat Mark Green by only 7.

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