Remembering Malcolm Tredinnick

I flew home from the US yesterday and when I arrived in Sydney I got a message from my husband saying that Malcolm Tredinnick had died. According to this piece by Simon Dulhunty, he was found on Monday to died at home in Sydney, possibly after a seizure, while I was at PyCon 2013.

Malcolm Tredinnick speaking to an audience
Malcolm Tredinnick speaking at DjangoCon 2008 (by Sebastian Hilling CC BY-NC)

I’ve known Malcolm slightly since my first linux.conf.au in Sydney 2001. In late 2004 I interviewed for a job at CommSecure (since closed) where he was then working, having been a lead developer of and continuing to maintain and develop a real-time data delivery system for the Hong Kong stock exchange. (The eventual end of that contract was the reason CommSecure later closed.) He was also my boss for about half of 2005 until I left to begin my PhD in early 2006.

I still caught up with him at technical events, the last long conversation I remember with him was at PyCon AU 2011 where my husband Andrew and I had a very Malcolm conversation with Malcolm, which roved over the paperwork hassles of having no fixed address (Malcolm travelled a lot and went through periods where he housesat or lived in serviced apartments for a while), the Australasian chess community, and some gentle mutual trolling between him and Andrew over narrative testing.

What I will remember most about Malcolm is that he was a teacher at heart. I never personally had this relationship with him, but I knew several people at CommSecure and elsewhere who Malcolm had tutored or mentored in programming, often over a very long period of time. Elsewhere I know he had taught mathematics (long before I knew him, he very nearly completed a PhD in mathematics when his area suddenly became fashionable and about 50 years of work was done in 6 months by incoming mathematicians) and chess. I will also remember his dry and sadonic approach to nearly everything (for a very recent example, Malcolm gives useful parenting advice), combined with “really, how hard could it be?” used both straightforwardly and distinctly otherwise. Goodbye Malcolm.

Update, funeral plans: Ray Loyzaga who was Malcolm’s close friend, and long-time founder-CEO of CommSecure, has announced that Malcolm’s funeral will be at 2:30pm Thursday April 4, at Camellia Chapel, Macquarie Park Cemetary, North Ryde, Sydney.

Other memorials:

Malcolm online:

Creative Commons License
Remembering Malcolm Tredinnick by Mary Gardiner is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Fun at LCA 2013: my picks for Thursday and Friday

Thursday

I rarely go to LCA’s tutorials, but really, after years of not having to worry too much about distributed version control systems due to having in-house technical support from my husband, a (now former) Bazaar developer, it’s probably time that I came to grips with git. Hence Git For Ages 4 And Up (Michael Schwern) is tempting, hopefully it’s OK for those of us who do use terms like “directed acyclic graph”. This does mean missing Wiggle while you work (Neil Brown) though: apparently you can’t be a git beginner whilst being interested in newfangled patching algorithms.

After lunch The IPocalypse – 20 months later (Geoff Huston) calls to me: it’s the sequel to his LCA 2011 keynote, which is the one that stood out to me. (Well, and Mark Pesce’s, yes, but funnily enough his actual content largely passed me by.) All that doom and gloom, and now what? Has IPv6 cost us our Internet?

A Tridge talk (Building a free software telemetry radio system) is an even more obvious pick than a Matthew Wilcox talk. (Although why did we put that particular talk up against Buffer Bloat? Tridge is going to talk about TCP performance issues.)

In the afternoon Keith Packard has a new passion (Teaching Robotics and Embedded Computing with Legos and Arduino) and then Ristretto: run-time types for JavaScript (Shane Stephens) sounds alarming. In a good way.

Friday

It might also be a two-tute LCA, with Beyond Alt Text: What Every Project Should Know About Accessibility (Denise Paolucci) up first. BUT NovaProva, or How I Did Six Impossible Things Before LCA (Gregory Banks) is the good crack (“NovaProva implements true reflection in C/C++”???), so… difficult!

After lunch, Asheesh Laroia’s Quantitative community management is closer to what I do but I am also curious about The real story behind Wayland and X (Daniel Stone). In the final session, probably Building Persona: federated and privacy-sensitive identity for the Web depending on how my conference energy is going.

And then where?

I’m headed back to the USA in March for PyCon, and I’m looking forward to having way (waaaaaay) less commitments than I did at Wikimania 2012, and therefore being able to catch more of the talks. And not dragging myself to my hotel room at 4pm to order crème brûlée room service because I am too tired to figure out how to work the lifts. (It was good crème brûlée though!) The Ada Initiative will probably be running some non-talk activities though, so it won’t be wall-to-wall talks. And then a second return to the USA for AdaCamp SF. And that really might be enough for one year, but if not, there’s always Kiwicon.

Fun at LCA 2013: my picks for Tuesday and Wednesday

I’m currently regarding LCA 2013 as my last LCA for a while. Never say never: LCA 2014 bids came in from Sydney (so, local to me) and Perth (where I’ve never been and would like to go). But I first went to LCA in 2001 and then later went to 2004 and since 2007 I’ve been to LCA every year, except for 2010 and that only because I had a baby in the middle of the conference.

LCA used to be my main way of reconnecting with open source while I was working on my PhD. But now I work for the Ada Initiative and open source (and open stuff) events are a big part of my job. While I have more time and energy for conferences I am attending them for very different reasons now and the lure of the new is getting strong.

Because my volunteer time is diminishing, LCA 2013 is definitely the last LCA in which I will have had significant input into the program (Michael Davies and I are co-chairs of the conference program this year, as we were for 2010). So, it’s something of a farewell tour for me and I’m looking forward to the program we worked so hard putting together.

Monday

… actually my non-LCA-ing family is still in town Monday, so I’ll probably go to Bdale Garbee’s keynote and then hang out with them. Off to a great start here, I know.

Tuesday

Radia Perlman’s keynote is the keynote I am most looking forward to this year. Following that several of my peeps are giving Haecksen talks before lunch:

  • Feminism, anarchism and FOSS – Skye Croeser
  • Overcoming imposter syndrome – Denise Paolucci
  • Security – Joh Pirie-Clarke

People may be especially interested in the Imposter Syndrome talk, Imposter Syndrome being the feeling that you’ve achieved your current position or status totally fraudulently and are going to be discovered any second and publicly humiliated. It’s very common among people who are in quite critical fields (like academia). Denise was among our Imposter Syndrome facilitators for AdaCamp DC.

I am not sure after lunch, but Web Animations: unifying CSS Transitions, CSS Animations, and SVG (Shane Stephens) is a definite contender. In the afternoon The Horrible History of Web Development (Daniel Nadasi) sounds interesting (although it’s the kind of talk where an abstract would be really useful in determining whether I want to go) but so do What we can learn from Erlang (Tim McNamara) and Concurrent Programming is not so difficult (Daniel Bryan)

Wednesday
Trinity: A Linux kernel fuzz tester (and then some) (Dave Jones) is very tempting in the first slot, but I think I will go to Think, Create & Critique Design (Andy Fitzsimon) because I want to “speak” design semiotics a little bit better and have for a long time. Talking to graphic designers is actually part of my job.

In the second slot I am not entirely sure, but probably Open Source and Open Data for Humanitarian Response with OpenStreetMap (Kate Chapman) since I periodically dabble in OpenStreetMap.

After lunch my pick is definitely Free and open source software and activism (Sky Croeser). I’ve been following Sky’s activism and research since the EFA lamb roast fun and met her at AdaCamp Melbourne. I want to hear what she has to say about (h)ac(k)tavism.

Not as sure about the following slot (in a moment of mischief, we put the DSD’s talk right after Sky’s, but I’m not especially interested) but the biggest contender is The future of non-volatile memory (Matthew Wilcox) because he usually is one of the highlights of the LCA lower-level technical talks.

The first slot after afternoon tea I am not committing, but it does contain Pia’s grand scheme Geeks rule over kings – the Distributed Democracy. After that I think Copyright’s Dark Clouds: Optus v NRL (Ben Powell) is required: it isn’t LCA without emerging feeling distinctly gloomy about the current state of the intellectual property framework.

Proving Australian citizenship when parents are born after 1986

Update January 2018: the Department of Home Affairs provides a Evidence of Australian Citizenship document to those whose claim to Australian citizenship is not one of the more obvious routes.

I know people who’ve had trouble with this, and won’t tell their specific stories, but a note now that I am applying for a passport for my son.

Australian citizenship is no longer by right of birth: if you were born on or after 20 August 1986, there are various more complicated ways it is acquired. One is being born in Australia and having at least one parent who is an Australian citizen or permanent resident at the time of your birth. Therefore, my son’s passport application has this section:

Please mark which of these documents you will provide at interview (you must present the original):
to prove that the child is an Australian citizen or to prove that one of the child’s parents was either an Australian citizen or a permanent resident of Australia at the time of the child’s birth.

  • The child’s Australian passport issued on/after 01/01/2000 and valid at least two years
  • One parent’s full Australian birth certificate (parent born prior to 20/08/86)
  • One parent’s Australian passport (issued on/after 20/08/86, valid two years)
  • One parent’s Australian citizenship certificate
  • One parent’s Australian permanent resident status

Both my husband and I were born in Australia before 1986, and in addition we happened to hold Australian passports before our son was born in any case, so we have a surfeit of evidence that will satisfy them that he’s a citizen.

But people born in, say, September 1986 are turning 27 this year, and therefore there’s lots of parents and soon-to-be parents whose Australian birth certificates are not sufficient proof of their own Australian citizenship, let alone their child’s status. So it’s very easy to imagine a situation existing right now where someone will need to show up with a grandparent’s birth certificate in addition to a parent’s and their own, and so on. By 2040 or earlier a great-grandparent may be required if no one in the family has held passports in intervening generations (great-grandparent born before August 1986, has a child at age 18+ in 2004, a grandchild in 2022 and a great-grandchild in 2040).

The easiest way around this for citizen-parents seems to be making sure one holds an Australian passport — because it stands on its own, unlike post-1986 birth certificates — before a child’s birth, which is not really foremost in one’s mind at the time. Oh, and be sure to keep it in a safe place until you or any of your children need evidence of their citizenship (usually but not always when they first need a passport themselves), because without it they’ll be back in the same documentation pickle. An increasing number of Australian-born people are going to have to go through the prior process of assembling potentially burdensome proof of citizenship involving either a string of ancestral birth certificates*, or a bunch of evidence of Australian residence on their 10th birthday (see Table B in documenting citizenship). I’d have trouble now proving my own Australian residence at age 10, frankly.

Australia is far from alone in not awarding citizenship by right of birth alone, so I assume there’s either a lot of people around the world who struggle to get passports, or other countries have processes that are more mature and less reliant on finding an ancestor who was unconditionally a citizen.

* Or worse, trying to get hold of 40 year old evidence of someone’s permanent residency, which I suspect is not as available for purchase later on as birth certificates are.

2012: resume fodder

Because I had quite a difficult year in several respects, especially health-wise, some short notes on my 2012 accomplishments.

Total eclipse, partially obscured by cloud
by Flickr user 130GT

Ran AdaCamp. AdaCamp is really originally my baby and AdaCamp Melbourne was significantly my work (with Val, and Skud as local organiser). AdaCamp DC was significantly less so (because I was on study leave between March and May), but still, even on the day they’re a lot of work.

Delivered three talks at linux.conf.au. We gave an Ada Initiative update and an allies workshop at the Haecksen miniconf and our Women in open technology and culture worldwide talk at the conference proper.

Submitted PhD thesis. This was, of course, the end of a huge project. I enrolled in March 2006 and was full-time until December 2009. I was then enrolled part-time from July 2010 (after maternity leave) until May 2012 when I submitted the thesis. The submitted version is 201 pages long, word count is difficult with LaTeX.

Delivered the keynote address at Wikimania. This is to date my largest ever audience, I think.

Saw a total solar eclipse. Less of the work, just as much reward. The photograph of the eclipse shown here isn’t mine, and isn’t exactly like our view (we saw the top rather than the bottom through our bank of cloud) but it’s also from Port Douglas, and is very similar.

Why is someone’s entire adult life relevant to their job application?

This article originally appeared on Geek Feminism.

Over at Captain Awkward’s advice column, there’s a question about how to deal with a recent name change when potential employees may call references that know you by a former name. The advice moves a little into how to deal with “resume gaps” in general:

Prospective employers will ask difficult questions about gaps in employment, changes of field, etc., but often they are doing it because they want to see how you react to the question before they decide if it is an actual issue. They want to make sure that you didn’t lie on your resume. They want to see if you have a coherent reason for whatever it is. And they want to see if you react with grace under pressure, or if you turn into a defensive weirdo… [P]lenty of people take time out of the workforce to care for kids, go to school, look after aging relatives, etc. and then are in the position of trying to get back into the workforce. If an employer is going to hold your years as a caregiver or student against you in making a hiring decision, that is their bad. Do not apologize! Do not talk about how your skills are “rusty”! If they say “I notice it’s been a few years since you’ve been working in this field, what’s up with that?” say “Yes, I was lucky enough to be able to take some time off to care for my mom at the end of her life,” or “Given the cost of day care, it made sense for one of us to stay home with the kids for a while” or “Yes, it was strange to be a grad student-by-day, bartender-by-night, but my customers were great and I learned a lot from having such a public-oriented position” and then ask a question about the position at hand.

It’s possible to disagree for pragmatic reasons with the advice to disclose here (see for example annalee’s comment on that post), but I wanted to move away from the question of what individual jobseekers should do — to be clear: I don’t fault Captain Awkward discussing that, it’s an advice column! — to the general question of why this comes up. Why do resume gaps matter, exactly? Why is a job candidate who has several unexplained years on their resume a worse candidate for a job?

Here’s my hunch about why it matters: because it’s a proxy for discriminating against (former or currently) ill or disabled people and carers, pretty much. And people with a history of institutionalisation, and others. So at an individual level you can disclose on the principle that while it sucks that there are powerful bigoted people out there, it’s better to find out that they’re bigoted against you before you’re working for them. Or you can not disclose on the principle that while it sucks that there are powerful bigoted people out there, you might be able to stay mostly under their radar when you are working for them. Not the most excellent choice in the world!

This seems in some ways hackable to me. This isn’t a new insight, but part of the problem with hiring is the need to choose one person (or N people), and, typically, having more than N applicants. You need some tools to eliminate people, so people come up with petty absolutes about resumes that are in the wrong font, or are one page long, or aren’t one page long, or that cover letters that use “I am writing to apply for” rather than “I am applying for” or whatever you like. And of course it’s easy to fall into bigotry too. The ideal worker bee is young and male and “flexible” and so on. If society has squashed someone down by keeping them out of the workforce, you don’t want your organization to have to pay the price for the squashing, so let’s require an age-21-to-present-time employment history too. Some people have that, after all.

There’s a real problem with resume gaps, which is that they might be actually relevant time that the person doesn’t want to talk about with you (for example, the employer they defrauded), but I think it’s at least worth questioning the idea of pushing down on everyone who has ever been out of the workforce in order to find them, and there’s definitely also a desire to ferret out “flakes” (people who you want to discriminate against) among some employers.

One possibility then is that by consciously letting go of the idea that your hiring skills guarantee getting the single best hire, or the belief that your resume filtering skills and interviewing skills are helping you past a certain point, and choosing randomly from the best M applicants as selected by your hopefully-consciously-avoiding-bigotry hiring process. And by letting go of your belief that you need total control in order to select The One, perhaps you can let go of at least some received wisdom about seeing “red flags” in any sign that someone may have done something with their weekdays other than work, and that they may not want to talk to you about that.

What received truths of hiring do you think are bogus or discriminatory?

Now Wikivoyaging!

It’s amazing how many people I meet who got en-wikied by Wikitravel, the freely licenced worldwide travel guide founded by Evan Prodromou and Michele Ann Jenkins. I was always a bit sad that it wasn’t a Wikimedia project (once I knew there were Wikimedia projects aside from Wikipedia). I was a heavy editor in 2004 and 2005 and became an administrator in 2006, and still (well, as of yesterday) held that role on the website although I haven’t been very active since 2007.

For entirely separate reasons, I ended up keynoting Wikimania this year, which was great and terrible timing as far as wikis for travel went. Great, because it was at Wikimania that part of the discussion about founding a Wikimedia Foundation travel wiki was going on (Internet Brands owns the Wikitravel trademark and domain name), and I was told about it by one of the people active in it. Terrible, because I was so exhausted and overwhelmed after AdaCamp and my keynote that I didn’t do nearly enough at Wikimania. (The evening of the keynote, I went to my hotel at 4pm and ordered room service dinner. Thank you, room service crème brûlée, for getting me through that night.) I did meet someone who was among those spearheading the proposal to have a WMF travel wiki, but I didn’t attend the travel wiki meetups, nor log in anywhere to express an opinion among the various proposals.

It seems that what was eventually decided was to immediately import content originally written for Wikitravel into an English language version of Wikivoyage, which had already assembled a German and Italian community to create a non-commerical wiki travel guide some years back. The edit history of Wikitravel as of early August has been imported (since August, Internet Brands turned off the API access to Wikitravel changes), with further edits being made by Wikivoyagers including many former Wikitravel (and current, perhaps?) editors. Wikivoyage is in turn being imported into WMF technical infrastructure very very soon (possibly Monday US time), but I finally happened to want to do some editing last night, so I jumped the gun and joined the live version of English Wikivoyage! If you remember me from Wikitravel, say hi.

It’s already possible to use Wikimedia Commons images on Wikivoyage, for which I’m very grateful. I’ve put all the research I’ve done for my upcoming trip to SEE A TOTAL SOLAR ECLIPSE into the Solar eclipses travel article, a perfect use-case for Commons images, which has hundreds of shots of eclipses. I’ll see if I can find a good replacement for the very mediocre image from my 2006 trip to Cairns still used on that article.

Life at 7: discussion thread

This article originally appeared on Hoyden About Town.

In February last year, the ABC screened Life at 5, the third edition in Life, an Australian documentary series following children born in 2004/2005 through their childhood. It’s associated with Growing Up in Australia: The Longitudinal Study of Australian Children.

Almost all of the children we first met at age 1, and then at ages 3 and 5, are returning from tonight in Life at 7, with only Loulou not appearing. This time, the two documentaries are Tackling Temperament (now on iView) and Finding Your Tribe (now on iView), screening a week apart.

People with Australian IP addresses can also catch up on the earlier documentaries for a limited time:

Are you watching Life at 7? Please play along in comments, I enjoyed (and was frustrated by) the previous documentaries, and I’m looking forward to seeing the new series.

Discussion starter: Reddit, Predditor, and outing bad behaviour

This article originally appeared on Geek Feminism.

So there’s Reddit. For the Reddit abstainers like me (I’m also not on Tumblr or Facebook, I’ll move on and set up neo-Luddite Feminism Blog any day now), a quick intro: discussion forum, encouraging the creation of Reddit subforums (subreddits) around any topic you can think of. Hugely popular: the mainstream press tends to cite Barack Obama’s Ask Me Anything thread as proof.

Reddit is strongly committed to what their users call freedom of speech, but that isn’t a very specific term on the Internet: it can mean anything from “I believe governments should not restrict expression” to “I believe that never deleting comments* from a forum improves the quality of discussion” to “I believe that never deleting comments from a forum is the only ethically correct way to run a forum.” (Or the disingenuous version: “I believe that I personally should be able to say what I want in any forum.”)

In Reddit’s case, freedom of speech basically amounts to “we believe that any user should be able to create a subreddit and moderate it how they and fellow moderators choose.” They host, for example, hate speech subreddits. They also until recently hosted r/CreepShots, a subreddit for sharing non-consensual photos of girls and women (up-skirting and such).

Over the last week, there’s been several eruptions around Reddit. Recently, Samantha** set up Predditors, which posts publicly available information about contributors to r/CreepShots, gathered from other sites linked to their Reddit pseudonym. It’s up and down: right now the first entry lists the full name, date of birth, employer, marital status and several photographs of one Eric Gore, Reddit username “ocbaud”, who submitted covert shots of women taken in his workplace. Jezebel posted about Predditors on October 10: How to Shut Down Reddit’s CreepShots Once and for All: Name Names. Predditors was temporarily closed by Tumblr shortly after, although at time of writing it is back with two profiles of Reddit users.

“Reddit’s defense of [CreepShots] is that it’s ‘technically legal,’ [Samantha**] explained. (The subreddit’s bio mansplains it well: “When you are in public, you do not have a reasonable expectation of privacy. We kindly ask women to respect our right to admire your bodies and stop complaining.” You can also click here for information on how little Reddit’s administrators seem to care about policing the subreddit.) “So I’m doing something that’s technically legal, but will result in consequences for their actions. These fuckers think they can get away with it scot free, which is one of the reasons why sexual violence is so prevalent around the world.”

In addition, on October 12, Gawker published Adrian Chen’s Unmasking Reddit’s Violentacrez, The Biggest Troll on the Web, identifying Reddit user Violentacrez, a moderator of r/CreepShots and several other subreddits hosting racist, misogynist and/or sexually abusive content, as Michael Brutsch, a computer programmer in Texas. Brutsch apparently moderated most of the subreddits out of a commitment to a “I believe that never deleting forums from Reddit is the only ethically correct way to run Reddit” version of free speech, but was more personally interested in r/CreepShots, regularly contributed content. Chen also describes a reasonably close working relationship between Reddit staff and Brutsch, who was active in training other moderators, and in identifying illegal content so that Reddit could remove it (that they don’t want to host).

It’s not yet clear how things will go from here: will Predditors survive, will Samantha** survive burnout, will creep shots remnants pop up all over the web like zombies? (The last is already happening***.)

Some of Geek Feminism’s authors have had a backchannel discussion over the last year or so about various Database of Harassers proposals. The proposal there is for documentation of in-person harassment incidents, for people who would rather not make their harassment accusations public in a blog entry or etc for the usual reasons We’ve taken a pretty skeptical view of the likely success of such a project. What do you think? Does the success of the wiki’s own incidents listing (which relies on third party public reports) or Predditors change your opinion?

* No one seems to believe this about spam.

** The pseudonym that was used in the Jezebel article.

*** Link is to a Jezebel article, not directly to a creep shots site.

Sunday spam: porridge and honey

What is cultural appropriation?

The problem isn’t that cultures intermingle, it’s the terms on which they do so and the part that plays in the power relations between cultures. The problem isn’t “taking” or “borrowing”, the problem is racism, imperialism, white supremacy, and colonialism. The problem is how elements of culture get taken up in disempowering, unequal ways that deny oppressed people autonomy and dignity. Cultural appropriation only occurs in the context of the domination of one society over another, otherwise known as imperialism. Cultural appropriation is an act of domination, which is distinct from ‘borrowing’, syncretism, hybrid cultures, the cultures of assimilated/integrated populations, and the reappropriation of dominant cultures by oppressed peoples.

Aircraft Carriers in Space

An article about naval metaphors in fictional space warfare. Sometimes I suspect that I like science fiction meta way more than I like science fiction.

“I’m not like the other girls.”

A quote I saw making the Tumblr rounds, which said, “I’m not like other girls!” It went on to avow wearing Converse instead of heels, preferring computer games to shopping, so on and so forth. When I saw it, about 41,000 girls had said they weren’t like “the others.”

Is Australia in Danger of Becoming Greece? Austerity and Blackmail Down Under

It is not enough to respond to this ongoing rhetoric about Australia’s supposed calamitous future by pointing out, as Ms Gillard correctly did, that these comparisons are ridiculous given the state of European periphery countries. Yet the ideological blackmail is strangely telling, precisely because the financial sector in the form of the troika (the International Monetary Fund, the European Commission and the European Central Bank) has held Greece’s politicians hostage, forcing a slashing of the government in exchange for “bail-out” loans.

The Start-to-Hate Review System

The concept is simple: Rate media based on how long it takes to encounter something bigoted. The longer it takes, the better the media.

An Investigation Into Xinjiang’s Growing Swarm of Great Gerbils

I am subscribed to two “long form” websites: the picks of Long Reads, which focuses on newer pieces, and the editor’s picks of Longform, which tend to skew a little older. Hence, this, from McSweeny’s in January 2005. I always like a piece that clearly ended up not being about what the original pitch was about. In this case, the writer wanted (or supposedly wanted, I guess) to investigate a gerbil plague, and ended up writing an article about gerbil social structures, text messaging on Chinese phone networks, and, several times, the Black Death. Which is how I ended up reading Wikipedia articles about pandemics the same night I was getting sick with the first illness I’ve had since I got out of hospital.

Mariana Trench Explosion

I think of Randall Munroe as a science writer who happens to be funded by merchandise sales from a comic. I don’t regularly look at the comic any more but I follow his blag and his What If? Answering your hypothetical questions with physics, every Tuesday writing more closely. This What If? is one of my favourites to date, although it’s hard to beat the first one. However, this one features an excursion into unpublished work by Freeman Dyson. SO HARD TO CHOOSE.

Do bicycle helmets reduce head injuries?

It’s impossible to follow Liam Hogan on Twitter without becoming interested in urban transport issues. At the moment the big conversation is helmet laws in Australia, which are arguably interfering with take-up of bike share schemes (if you’re going to have to get hold of a helmet, you don’t just jump on the bike, hence, scheme falls apart), although see Why is Brisbane CityCycle an unmitigated flop? for several other reasons that scheme may be failing.

Anyway, this one: A new study reports the rate of hospitalisations for cycling-related head injuries in NSW has fallen markedly and consistently since 1990. The authors say it’s due to helmets and infrastructure.
The drugs don’t work: a modern medical scandal and Ben Goldacre: ‘It’s appalling … like phone hacking or MPs’ expenses’

Reboxetine is a drug I have prescribed. Other drugs had done nothing for my patient, so we wanted to try something new. I’d read the trial data before I wrote the prescription, and found only well-designed, fair tests, with overwhelmingly positive results. Reboxetine was better than a placebo, and as good as any other antidepressant in head-to-head comparisons… In October 2010, a group of researchers was finally able to bring together all the data that had ever been collected on reboxetine, both from trials that were published and from those that had never appeared in academic papers. When all this trial data was put together, it produced a shocking picture. Seven trials had been conducted comparing reboxetine against a placebo. Only one, conducted in 254 patients, had a neat, positive result, and that one was published in an academic journal, for doctors and researchers to read. But six more trials were conducted, in almost 10 times as many patients. All of them showed that reboxetine was no better than a dummy sugar pill. None of these trials was published. I had no idea they existed.

Given that I favourited two separate articles about this, I’m going to buy the book. Now you know.

Going blind? DRM will dim your world

[I]t turned out I needed Adobe Digital Editions to ‘manage my content’… It tried, of course, to force me to give Adobe my email and other details for the ‘Adobe ID’ that it assured me I needed to get full functionality. I demurred… and was confronted by a user interface that was tiny white text on a black background. Unreadable. Options to change this? If they exist, I couldn’t find them.

Getting this far had taken me half an hour fighting my way through a nest of misery and frustration with broken eyes and a sinking heart. Along the way, I’d been bombarded by marketing messages telling me to “enjoy the experience” and “enjoy your book”.

Reader, I wept. Marketing departments, here’s a top tip: if your customer is reduced to actual, hot, stinging tears, you may wish to fine-tune your messaging.

5 Plans to Head Off the Apophis Killer Asteroid

Friday the 13th of April 2029 could be a very unlucky day for planet Earth. At 4:36 am Greenwich Mean Time, a 25-million-ton, 820-ft.-wide asteroid called 99942 Apophis will slice across the orbit of the moon and barrel toward Earth at more than 28,000 mph. The huge pockmarked rock, two-thirds the size of Devils Tower in Wyoming, will pack the energy of 65,000 Hiroshima bombs–enough to wipe out a small country or kick up an 800-ft. tsunami.

On this day, however, Apophis is not expected to live up to its namesake, the ancient Egyptian god of darkness and destruction. Scientists are 99.7 percent certain it will pass at a distance of 18,800 to 20,800 miles… Scientists calculate that if Apophis passes at a distance of exactly 18,893 miles, it will go through a “gravitational keyhole.” This small region in space–only about a half mile wide, or twice the diameter of the asteroid itself–is where Earth’s gravity would perturb Apophis in just the wrong way, causing it to enter an orbit seven-sixths as long as Earth’s. In other words, the planet will be squarely in the crosshairs for a potentially catastrophic asteroid impact precisely seven years later, on April 13, 2036.

It turns out that with current technology we might be able to move the asteroid prior to the (potential) 2029 entry into the gravitational keyhole, but if it did so we would be unlikely to perturb the orbit sufficiently after that point to avoid a civilisation-ended impact. So it’s the question of how many resources to spend on a low-probability but enormously catastrophic event.