All posts by Wan Kong Yew

Economists are cheap / Engineers are terrorists

A couple of amusing articles by way of Marginal Revolution and the Freakonomics Blog. The first article from the Wall Street Journal details some of the quirky habits of famous economists. We learn for example that Milton Friedman routinely returned the telephone calls of reporters collect and that a dinner served by John Maynard Keynes skimped on the food so much that Virginia Woolf complained about him serving only three grouse for eleven people. John Siegfried, the secretary-treasurer of the American Economic Association, never cares about the the color of the cars he buys and simply asks for whichever color is cheapest, while Robert Gordon of Northwestern University will drive an extra half-hour to get to a cheaper grocery store.

Economists are also less likely to donate to charity. Research by Yoram Bauman and Elaina Rose of the University of Washington showed that economics majors were less likely to donate any money than graduates from other majors. Even students who didn’t major in economics gave less to charity after taking introductory economics classes. The rationale is that economists are more aware of economic efficiency and find many types of economic decisions made by other people wasteful. This of course extends to gambling as well and the article claims that casinos make very little money from economists.

The second article appeared in Slate and covers a paper by two sociologists Diego Gambetta and Steffen Hertog who after studying 400 radical Islamic terrorists from more than 30 countries, noticed that engineers were three to four times more likely to be violent terrorists than their peers who studied finance, medicine or the other sciences. The next most radicalizing specialization was Islamic Studies but it came a distant second. The same trend also appears to be true anecdotally. 8 of the 25 hijackers involved in the 9/11 attacks were engineers and two out of the three founders of the violent Lashkar-e-Taibi group believed to be behind the attacks on Mumbai were engineering professors.

The articles cites a couple of reasons why this trend exists. One is that engineering is a popular subject of higher education in developing countries and many of the graduates who picked engineering expected it to be a pathway to high-status employment. Thus, they have been frustrated by the corruption and repression in many Middle-Eastern countries which stymied the modernization that they expected and led to joblessness among highly educated jobseekers.

Another reason might be that engineers have a tendency to be more conservative and religious, while possessing a mindset that seeks greater order and stability in society and disdaining ambiguity and compromise. They may believe that only a rigid adherence to religious laws can bring about the orderly society that they crave. In any case, intelligence agencies have already noticed that terrorist groups are aware of this and spend extra time and effort to gather recruits from engineering schools, especially since they possess valuable technical skills that can make them better terrorists.

Recent Interesting Science Articles (December ’09)

Three articles this month, all of them on biology. The first one is only a scientific article in the vaguest sense and talks about the cognitive benefits to gained from travel. The second one weighs in on the age old debate of cats versus dogs and the last one concerns a recent development that could lead to superhuman strength being a reality.

The first article is less formal than the usual stuff that I link to as part of this series and frankly I didn’t think it’s a bit too long for the ideas it presents, but it does make for a rather good if somewhat obvious point: that travel expands the mind and opens us to possibilities that otherwise wouldn’t have occurred to us. What sets this observation apart is that the article cites experiments performed by psychologist Lile Jia at Indiana University. He assigned tasks to two group of students with one group told that the task was from a place far away while another group was told that the task came from somewhere nearby.

Continue reading Recent Interesting Science Articles (December ’09)

Avatar

As usual when I write about films, spoilers abound so you might want to hold off on reading this until after you’ve watched it yourself. However, the plot is so cliche-ridden and so predictable that it’s pretty hard to spoil the film. It’s basically Dances with Wolves in space and all the pertinent plot points are clearly telegraphed from the first moment that you see the planet Pandora. Having only recently rewatched Aliens, I was also struck by how many themes and ideas were re-used. Over the top gung-ho soldier? Check. Greedy corporation exec who cares only about the bottom line? Check. Even the military vehicles and mechs look vaguely familiar.

The wonder of the film is that it all works, which says a lot about James Cameron’s directing skills. The film is genuinely breathtaking and spectacular, so much so that when you see it for the first time you simply know that this is something that you have never seen before. In that sense, it’s every bit as iconic and singular an experience as watching Star Wars or Jurassic Park for the very first time. It’s the same kind of once-in-a-lifetime experience that just blows you away.

It’s when you walk out of the cinema that all of the plot holes and flaws catch up with you. How do the human controllers connect with the avatar bodies? It must be magic because it seems to be unaffected by range or electromagnetic interference and the avatar bodies don’t seem to come with electronics. Why was the human ground force fooling around in the jungle for when the mission was to bomb the Tree of Souls? How ludicrous is it that no animals come to eat the avatar bodies when the human controllers are disconnected, especially after the film has established how hostile the jungle is? How come if the rocks float, the water still falls from it? And if they are made of the magical anti-gravity mineral, why don’t the humans just tow those away instead of trying to mine it from underground?

It’s common knowledge that Cameron wrote the original script for Avatar not long after he finished Titanic, so the script is still floating around the Internet. This website has a good comparison of the differences between the original scriptment and the film that ended up being made. It’s apparent that the original script was more subtle and less filled with cliches but a great deal more bloated. For example, in the original script the Na’vi that Jake falls in love with isn’t the first one that he meets, the research team is being helped by a Na’vi guide and Grace is secretly sleeping with him, there’s a previous human controller who fell in love with a Na’vi girl but she was killed by the military and he committed suicide etc. It all makes the Jake character less unique and less like a superhero who came out of nowhere to save the world.

For all these reasons, while watching Avatar once is practically mandatory, I doubt that the film stands up to repeated viewings. Even the technology will eventually look dated. But for now, it’s undoubtedly one of the most beautiful things ever put on film.

3D Printing

I first heard about 3D printing in The Economist a while back and it sounded promising but looked like one of those technologies that are always on the horizon but never quite arrive. Recently, someone on QT3 got a hold on a 3D printer and posted a Youtube video of it in operation. It really rammed home how far the technology has come already. Here’s the video he posted, which is just a simple demonstration of what it looks like in action:

Note that this thing isn’t really self-replicating yet. It can apparently print about half of the parts needed to make a new printer, but the metallic parts, motors and other electronic parts need to be purchased separately and attached to the ABS plastic parts that the printer creates. This is the same kind of plastic that Lego uses for its bricks, so it should be quite sturdy.

Naturally, as a boardgame player my first thought was how awesome this would be as a way to quickly create all sorts of pieces for games. This isn’t quite perfect yet because the printer’s resolution is too low, so it can’t do fine detail. Plus the way that the plastic is applied layer by layer makes it difficult or impossible to create pieces with significant “overhang”, as would be needed in for example, a theoretical humanoid figurine with arms that extend past the torso and the feet at the base of the figure. I hear that they’re working on this problem and thinking about ways to add a second print head that would print laterally in conjunction with the original printer head that works horizontally to alleviate this problem. Here’s an example of a different type of 3D printer making a pawn Chess piece:

Still, all this is pretty exciting stuff and it’s as close to the matter replication technology of Star Trek as I can imagine, something I never thought would happen within my lifetime. Hurray for science and technology!

The Storm Warriors

First off, don’t watch this. It’s terrible and you’d only be wasting your money. That said, I expected it before I went in and still dragged my wife into the cinema with me. This is because the original film The Storm Riders from 1998 is a huge guilty pleasure for me. This old review from LoveHKFilm.com (who still haven’t posted their review of the sequel yet!) put it best by calling it the Hong Kong version of Star Wars. As the reviewer Kozo noted, the original film, for all its cheap CGI effects, poor acting and hackneyed plot, successfully transported the viewer into a fantasy version of a mythical China that never actually existed but is clearly drawn from and inspired by Chinese themes and legends.

For my part, I immediately recognized The Storm Riders when I first watched it as the Chinese analogue of the many Western fantasy worlds I knew so much, Tolkien’s Middle Earth being the most iconic example. Of course, it wasn’t the only Chinese fantasy world. The version of China that Louis Cha’s novels are set in is unarguably more famous and celebrated, but it didn’t really feel fantastical enough for me. Come on, The Storm Riders even has a freaking dragon in it! Considering The Journey to the West as being fantasy is a bit unfair too. It would be like calling The Bible a fantasy novel.

Continue reading The Storm Warriors

Consensus in modern philosophy

For a website that started out with philosophy as its primary topic, I’ve been writing precious little on the subject. I suppose that this is because over the years I’ve become more and more set in my beliefs and ways so I’ve had no reason to want to read or write more on it. In any case, this tidbit is one of the most interesting things I’ve read in the field in many years. It’s a survey on modern philosophers’ views on a large number of controversies in philosophy, including various thought experiments and ethical dilemmas.

The surprising thing about this is that there appears to be a clear consensus in quite a few areas, which goes against the traditional complaint about philosophy being a talking shop where no one can ever agree with anyone else. Of course, one possible reason why there’s such a consensus is that most of the respondents are English speaking. According to the demographic breakdown given, out of the sample size of 3,226 respondents, 1,405 are Americans, 381 are British and 199 are Canadians. Of the non-English speaking countries, Germany is the highest with 115 respondents.

Continue reading Consensus in modern philosophy