Thursday, March 18, 2010

Ferguson's pseudo-science of Empires

My good friend from Arpoador, who knows how to push my buttons, sent me a link to this recent LA Times article by Niall Ferguson (who i have railed about in a past post). Like many social scientists before him (including Paul Krugman), he has become seduced by the science of complex systems, with their self-organized criticality, tipping points, phase transitions, etc. I find this stuff really cool too. But how much does it really help understand social science (either explaining past social events or predicting future ones)?

The sudden collapse of the Soviet Union does look like the kind event described in the complexity models. But i don't think we can overlook the personal role of Gorbachev who could have elected to resist the breakdown but opted to facilitate it.

Now think back to the Great Depression, another collapse, it would seem, of a complex system.
But Hoover and the Federal Reserve didn't resist either, they took actions that probably accelerated the collapse.

Now think of the most recent crisis: Paulson, Bernanke, Geithner, Summers, and Obama all resisted the collapse--pushing back with aggressive monetary and fiscal policy--and succeeded in preventing another great depression. Billions of people whose livelihoods were saved should breath a sigh of relief that Bernanke et al didn't consult with Ferguson, who apparently thinks easy money and stimulus will cause America's collapse, whereas the near obvious truth is that they prevented it.

Last point: in the traditional use of the word, Empires need colonies or at least a large swath of conquered territory. What is America's empire? Puerto Rico, Guam? He can't be referring to a couple small islands. Ferguson must be talking about Afghanistan and Iraq but these are not America's colonies; they are policing actions. US losses in Afghanistan are very sad, as are the associated civilian deaths but the numbers are very small relative to past conflicts that ended empires. And recently the US and Afghan army took over the Taliban's last city in Afghanistan (Marja). So how do we see echoes of the past (Soviets, English, and Greek disasters in the region) in the Afghanistan of 2010?

Ok, really last point. The suspicion that he's become a total charlatan hardens further when he starts quoting that other great charlatan about "fat tails" and "black swans".

Saturday, March 06, 2010

The Lantau Grind


Today's hike reminded me of the Grouse Grind in Vancouver. The ascent from the bus-stop Pak Kung Au is pretty much all stairs and no switchbacks so I found myself pausing frequently to catch my breath. Well the Serious Hiker's Guide to HK gives it 3 boots and that is not because of length (about 2 hours from Pak Kung Au to Ngong Ping).

The bummer for us was that from the very beginning we were stuck in a cloud from which we did not emerge until we descended to Ngong Ping (where there is monastery, giant Buddha, and a good vegetarian restaurant). We got nicer views (of the airport, water and apartment estates) on the descent to Tung Chung. One interesting thing about our route was the variety of public transit: tram to Central, Ferry from Central to Mui Wo on Lantau Island, bus to Pak Kung Au, and MTR back to Wan Chai from Tung Chung. Special note: Starz Wine Bar offers pints of San Miguel (Philippine lager) for 38 HKD (about 5 USD) just outside the Tung Chung station.

Recommended hike. I will have to do it again on a sunny day!


Thursday, March 04, 2010

Krugman on insurance

Krugman answered questions recently for the New Yorker. Some of the answers were so well put.

example 1:

QUESTION FROM ERIK DONNELLA: Why should (or shouldn’t) health insurance be for profit?


PAUL KRUGMAN: I think at a fundamental level the point is that what we want is broad coverage—it’s a widely shared social goal—but that’s not what private insurers are trying to achieve; from their point of view profits are maximized by not covering those who need it most. Long ago we made the decision that seniors should have guaranteed coverage via Medicare; there’s no real reason to apply different logic to those under 65.


After reading this, I was all "right on!" "how could anyone not agree with this logic?" But then I saw the flaw...If private insurance is that bad, why do we use it for our homes, possessions, our trips, dental, rental cars...

I guess my answer is that I don't. The only insurance I buy is what is mandated by law.

Example 2:


QUESTION FROM NATE: .... how am I to make sense of the constant alarm about USA’s credit rating being raised in the news?

PAUL KRUGMAN: ...for now I would disregard the deficit hawks...
...I’m especially baffled by the idea of taking insurance against a U.S. default. If America defaults, we’re talking about a chaotic world—Mad Max, more or less—in which case, who imagines that insurance claims will be honored?

Sunday, February 28, 2010

the best deal ever!


Friday we ate lunch at Akavit,

a restaurant on the hillside above the road between Patong beach and Tri Trang beach.
I think it's called Akavit but the two cocktail glasses after the "k" might represent a letter.

although the sign advertises "Swedish chefs," it seems the Swede is the owner and he's in Sweden. Our chef/waiter/manager was Thai and a super nice guy.

We ordered Paeneng curry (chicken), Pad Thai (shrimp), morning glory (veg), and steamed rice. To quench our thirsts we shared 3 Singha beers. Total bill: 360 baht or $11.

And did i mention the sea view?


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Saturday, January 23, 2010

A good theory

I'm reading Richard Dawkins' The Greatest Show on Earth. It's really good--the evidence of evolution that he provides is fascinating and compelling. On page 149 Dawkins writes
a good theory , a scientific theory,is one that is vulnerable to disproof, yet is not disproved.
He gives the example of Haldane's response to the question of what evidence disprove the theory of evolution: "Fossil rabbits in the Precambrian." But I think Dawkins is not quite right. Suppose fossil rabbits did show up and were reliably dated far before the first mammals? Would we stop believing in evolution? I don't think so. We (well, the main problem would be for biologists but all believers in evolution would have to be pretty disturbed) would have a huge problem. But as someone named Dobzhansky once wrote, "Nothing in biology makes sense except in the light of evolution." Fossil rabbits in the Precambrian wouldn't make us abandon the of evolution because we need the theory to account for so many things that we observe. And there's no plausible alternative. So in light of this, I propose a new definition:
A good scientific theory is the most internally consistent and evidence-based framework for making sense of the complex phenomena we observe in the world.


Movie update

I watched the Hurt Locker. I had to watch it in two installments because it is so intense. It MUST be the best movie of 2009. That's not based on an extensive viewing of 2009 movies. It's based on my larger sample of movies over the last 30 years. The Hurt Locker is so good that the only way there could be a better movie in 2009 is if it were an off-the-charts year!

I also saw Funny People on the plane. Definitely worth seeing on a plane.

Now I really want to see Inglorious Basterds.

Wednesday, December 30, 2009

2009 Movies: Seen/Unseen

Movies I saw and liked (a lot!):

  1. Avatar 3d
  2. Star Trek
  3. (500) days of Summer
  4. Adventureland

Movies I saw and recommend that you don't see:

  1. Whatever works (or whatever Woody Allen's latest movie was called. What a disappointment after VCB last year).
  2. Public Enemies (ugh, Johnny Depp's presence is not enough to make a movie good).
Movies on my "to-see" list:
  1. Fantastic Mr. Fox
  2. Up in the Air
  3. District 9
  4. Broken Embraces
  5. The Hurt Locker
  6. The Messenger
  7. Invictus
  8. The Road
  9. Funny People
  10. Inglorious Basterds