Tags versus categories for blogs

I have long felt that, while categories play a useful role in organizing information on blogs, tags are just useless noise. I am pleased to see that Matt Cutts, who blogs and works for Google, agrees.

From the words in your actual post, Google and other search engines can tell what it is about. Categories, on the other hand, provide a useful way for someone interested in a particular subject you write about to learn more about it. Someone visiting my blog might only be interested in security, or economics, or photography. Categories let them filter through to just that easily.

They are also a lot less time consuming (though less customizable) than hand-generating an index page or two.

Satirizing environmentalism

While effective climate change policies have yet to be implemented in most places, there do seem to be signs that environmental consciousness has established itself in the popular discourse. No doubt, this owes a lot to how serious people – both scientists and policy-makers – have continued to stress what a major issue climate change is, and how vital it is to address it.

One sign of that high level of visibility comes from this week’s posts on The Onion, a satirical newspaper:

No doubt, this level of prominence owes something to the ongoing disaster in the Gulf of Mexico. Nonetheless, maybe this kind of deep cultural penetration actually bodes well for environmental policy in the long run.

Catching up on reading

Right now, the collection of books around my house contains the following sub-groups:

  1. Fiction in progress (some abandoned for months or years): 8 books
  2. Fiction not yet started: 11 books
  3. Non-fiction in progress: 12 books
  4. Non-fiction not yet started: 13 books

My current reading project is to finish all the non-fiction and all the interesting fiction I have already started (I don’t much like fiction these days). Then, I will read the remaining non-fiction, before I go out and acquire any more.

Given that most of these books are 300-400 pages, a rough estimate of how much reading I must do to clear the backlog is 15,400 pages. For the sake of comparison, I have reviewed 89 books since I began doing so in a systematic way.

Long-term changes in happiness

The final lecture of the psychology course I have been following focuses on the question of what makes people happy.

In addition to a lot of things that are already common knowledge – such as how winning the lottery is not all it’s cracked up to be – it includes a couple of examples of things that have a persistent effect on your happiness. This contrasts with things like the acquisition of a new gadget, which prompts a brief spike that soon falls back to normalcy.

One thing that makes people persistently happier is plastic surgery. Apparently, this is because time doesn’t desensitize us to how other people respond to our appearance. Neither does it affect how our own perception about our experience affects our mental lives. For those who don’t want to go to the extreme length of surgery, it seems plausible that improving your wardrobe could have a similar effect. Replace some shabby garment with one that you are proud to wear, and it may well make you happier for as long as you own it. I can speak to this from personal experience. Replacing my squeaky, ugly, plastic Rockport shoes with some nice leather Allen Edmonds shoes has made me feel consistently more qualified and capable at work.

Another thing that affects happiness persistently, though in a negative way, is noise. I know plenty about this personally, since I live right beside a busy street, on the ground floor, with my bedroom window right beside a speed bump that people often damage their cars on. This has bothered me every single day since I moved in, particularly when cars wake me up in the morning. I recall being annoyed by similar circumstances in the past, such as the noisy birds outside the Totem Park residence at UBC, or the booming clock beside my house in North Oxford.

The practical message of all of this seems to be: don’t spend your money on electronic gadgets, photo gear, or other expensive trinkets. Definitely don’t spend it on lottery tickets, which are likely to leave you less happy in the very unlikely situation where you win. Spend it on quiet housing and improving your appearance. Another good investment might be Professor Paul Bloom’s forthcoming book: How Pleasure Works. The New Science of Why We Like What We Like.

Timing an Ignite presentation

I am in the process of preparing an Ignite presentation on climate change, expressing the basic point that the amount of climate change we experience will depend primarily on what proportion of the world’s fossil fuels we burn.

The Ignite format is an odd and challenging one. Each person speaks for five minutes. At the same time, each has a set of 20 slides which automatically advance every 15 seconds. These factors make it challenging to express yourself clearly and effectively.

The earliest drafts of my presentation suffered from my natural tendency towards digression. I am moving forward now more confidently, having timed myself reading four examples of text for five minutes each. Two were written by me, two were speeches written by others.

I found that I read text similar to that in my presentation at a rate just over 180 words per minute. That translates to about 45 words per slide. To compensate for any issues with shuffling notes or distractions, I will write 40 words of pre-prepared comments to accompany each slide, reducing the risk that the unusual Ignite format will leave me unable to express my point fully.

[Update: 5 May 2010] You can see my final presentation on BuryCoal.com.

Oliver Twist

The latest audiobook I have worked by way through in snatches while walking or taking the bus was Charles Dickens’ Oliver Twist. The version I listened to was provided by the same University of Southern Florida program I mentioned previously. The files are available for free online.

The book is a decidedly interesting one, and an worthwhile commentary on such matters as class relations and the nature of crime. At the very least, it is worth listening to or reading the first few chapters. They are an excellent satirical denunciation of the English Poor Laws, which I would say has contemporary relevance as well:

For the next eight or ten months, Oliver was the victim of a systematic course of treachery and deception. He was brought up by hand. The hungry and destitute situation of the infant orphan was duly reported by the workhouse authorities to the parish authorities. The parish authorities inquired with dignity of the workhouse authorities, whether there was no female then domiciled in ‘the house’ who was in a situation to impart to Oliver Twist, the consolation and nourishment of which he stood in need. The workhouse authorities replied with humility, that there was not. Upon this, the parish authorities magnanimously and humanely resolved, that Oliver should be ‘farmed,’ or, in other words, that he should be dispatched to a branch-workhouse some three miles off, where twenty or thirty other juvenile offenders against the poor-laws, rolled about the floor all day, without the inconvenience of too much food or too much clothing, under the parental superintendence of an elderly female, who received the culprits at and for the consideration of sevenpence-halfpenny per small head per week. Sevenpence-halfpenny’s worth per week is a good round diet for a child; a great deal may be got for sevenpence-halfpenny, quite enough to overload its stomach, and make it uncomfortable. The elderly female was a woman of wisdom and experience; she knew what was good for children; and she had a very accurate perception of what was good for herself. So, she appropriated the greater part of the weekly stipend to her own use, and consigned the rising parochial generation to even a shorter allowance than was originally provided for them. Thereby finding in the lowest depth a deeper still; and proving herself a very great experimental philosopher.

Everybody knows the story of another experimental philosopher who had a great theory about a horse being able to live without eating, and who demonstrated it so well, that he had got his own horse down to a straw a day, and would unquestionably have rendered him a very spirited and rampacious animal on nothing at all, if he had not died, four-and-twenty hours before he was to have had his first comfortable bait of air. Unfortunately for, the experimental philosophy of the female to whose protecting care Oliver Twist was delivered over, a similar result usually attended the operation of her system; for at the very moment when the child had contrived to exist upon the smallest possible portion of the weakest possible food, it did perversely happen in eight and a half cases out of ten, either that it sickened from want and cold, or fell into the fire from neglect, or got half-smothered by accident; in any one of which cases, the miserable little being was usually summoned into another world, and there gathered to the fathers it had never known in this.

This sort of treatment is reminiscent of Jonathan Swift, and seems to be quite an effective form of social criticism. Rather than make a direct argument that a particular approach is unethical, you can defend the approach in such a preposterous way as to convey that message indirectly.

One thing I found odd about listening to the book was the antisemitic treatment of the character Fagin. Fagin is very frequently referred to as “The Jew” and it is at least implied that part of the reason for his criminal and unethical behaviour is tied to his Judaism. As a child, I was never exposed to any writing in which a character was portrayed as especially wicked, partly as a result of being Jewish. Indeed, I came across the concept of antisemitism academically long before I saw any examples of it in fiction or real world discourses. Possibly because of that, it has always struck me as an absurd point of view. I wonder whether exposing children to books like Oliver Twist subtly pre-conditions them to find antisemitism a plausible point of view.

Normally, I am very much of the view that censorship is an odious practice, even when supposedly done for the benefit of children. That being said, it does seem regrettable that literature might act as a vector for the transmission of baseless ideas from one generation and set of social circumstances to another.

Singh appeal successful

In a very welcome development, science writer Simon Singh (discussed twice before in relation to alternative medicine) has won his appeal against the libel suit brought against him by the British Chiropractic Association. It was brave of him to launch the appeal, with all the further financial harm that would have accompanied another loss. Getting to this stage involved legal costs of £200,000. The whole kerfuffle was spawned when Singh wrote in an article that chiropractors promoted ‘bogus’ treatments, for which there was no scientific evidence of effectiveness. This statement was interpreted very strangely by a judge at an earlier stage in these legal proceedings, leading to much of the subsequent trouble.

This is a victory for free speech, sanity, and open inquiry. Hopefully, it will also free up some of Mr. Singh’s time to write more excellent books.

British Chiropractic Association President Richard Brown has said that they may appeal to the Supreme Court.

[Update: 11:20am] The ruling is online and worth a look. It contains some strong wording, along the lines of: “to compel its author to prove in court what he has asserted by way of argument is to invite the court to become an Orwellian ministry of truth.”

Climate change severity levels

In the interests of using language clearly and consistently, when talking about climate change, I have written up some personal definitions over at BuryCoal.com. Specifically, I have defined what I mean when I talk about ‘dangerous,’ ‘catastrophic,’ and ‘runaway’ climate change.

I hope the post will serve the dual purpose of helping to encourage effective conversation – in which all participants understand one another clearly – and of reminding people just what a serious problem we are dealing with, when it is necessary to define such terms and consider the implications of such phenomena.

Sherlock Holmes and Huckleberry Finn

During the past week or so, I listened to my first two audiobooks ever. Previously, I had been quite skeptical. To me, podcasts and the like seem to require too much concentration for use when doing anything complicated, but to not really be engaging enough to hold your attention when you are doing nothing else.

Both issues have been problematic sometimes, when listening to the free copies of Arthur Conan Doyle’s The Adventures of Sherlock Holmes and Mark Twain’s The Adventures of Huckleberry Finn that I got from the excellent iTunes U section of Apple’s music store. I sometimes had to rewind (what an anachronistic term!) and re-listen when something distracted me. Much more rarely, I found the contents insufficiently engrossing, though Ernest Hemingway is surely correct to say that the last few chapters of Huckleberry Finn are a severe disappointment.

Both books are part of the University of South Florida’s Lit2Go collection, and they are well (though I think not professionally) read. Each is read by a single person, without much attempt made at voices or radio-play style effects. I found that both books lent themselves well to this treatment, owing perhaps to their relative simplicity and the charming datedness and foreignness of the voices in them. The books can be downloaded here and here, as well as through iTunes.

I doubt that the audiobook treatment would be as well suited to something really complex and intellectual, of the sort where you frequently need to make notes or refer back and forth through the book. Nonetheless, the audiobook medium does seem like a good one for the casual enjoyment of relatively light fiction.

Personal experiences with coal

Willa Johnson has written an interesting post about her personal experience with coal, an industry which her family works in but which she now opposes.

Much of it focuses on the apparent tension between dealing with climate change and addressing unemployment:

People say that I am ungrateful and that I don’t understand, but I do. I grew up with my house shaking from the explosions blowing the mountainside off. I know what it feels like not to be able to breathe the air on certain days because it is so thick with dust.

But layoffs are spreading across the region, and local activists like me are feeling the heat. Summer barbecues are tense when the person sitting across the table from you just lost the mining job that you spend a great amount of time speaking against. It’s not easy feeling like you’re fighting the people you love.

What makes the emotional situation here so unbalanced is the contrast between the powerfully immediate (though ambiguous) physical and economic impacts of coal mining, and the distant but invisible consequences of the emissions being generated. The former has a much greater capacity to engage human emotions than the latter, despite how the latter is a consequence on a much larger scale. Also, the sheer wretchedness of the local destruction caused by coal mining somewhat tempers the tendency to accuse the people in these communities of being gross abusers of the rights of innocent people around the world, and in future generations. While there is some truth to that perspective, people in coal mining communities are clearly victims too.

In any event, it highlights how pragmatic approaches to escaping fossil fuel dependence will require special assistance for those most directly affected by the transition.

Incidentally, it would be wonderful if some people with personal experience with the coal industry could contribute some posts to BuryCoal.com. The site would surely be enriched by the addition of some less distant perspectives.