95% of percentages are annoyingly useless

There's a notice on the intranet here at work, which reads as follows:

Lock it or lose it!
75% of theft from motor vehicles happens to unlocked cars

It's annoying me. It's been annoying me for a while.

Why?

Because it's emblematic of a common theme in the presentation and usage of statistics. In the absence of other essential data - in the absence, indeed, of context - the 75% figure is largely useless.

To really evaluate what it means, we have to know at what rate cars are left unlocked. If, for example, 85-90% of cars are left unlocked, then to have 75% of theft happen from locked cars would mean that it's less likely that an unlocked car will be stolen from. And we'd also like to know at what rate from-car thefts happen per car per year full stop, as well as "does the ratio vary with the value of goods stolen?". Without these kinds of figures, that magic 75% doesn't tell me anything useful.

Yes, I know that on the topic of thefts from cars common knowledge states that a large majority of cars are in fact left locked when unattended, and are relatively rarely broken into anyway. But what about in the case of less commonly understood statistics, where this absurd present-the-percentage-and-hang-the-context reporting takes place too?

Take, for example, anti-vaccine campaigner Meryl Dorey of the Australian Vaccination Network.

A veteran liar-with-statistics-she-doesn't-understand, Meryl Dorey has fold us that 80% of pertussis cases happen in the vaccinated population, as if to suggest that the vaccinated are somehow, illogically, more likely to contract whooping cough than the unvaccinated. This we know is not the case - the vaccine is shown to have a good - though not by any means perfect - efficacy rate in preventing infection. This still doesn't stop Meryl throwing the percentage out there in support of her topsy-turvy world view.

Still, so what if 80% of cases are in the vaccinated? The important question is whether you're more or less likely to contract an infection if vaccinated, and for that you need to know rates of vaccination versus rates of infection with a solid contextual basis. From Meryl's 80% claim alone, it is impossible to tell - and therefore the assertion is useless, as well as being flat-out wrong.

Dorey also, oddly enough, tries to state that our national pertussis vaccination rate is 95%, sometimes in conjunction with the 80% lie, sometimes not. This, again, is a bad statistic, cherry-picked as it is from a small subset of the overall population. 95% of young children in a given year were vaccinated. This does not hold true for an older cohort, or indeed for adults, where the rate is down around 11.3% (see link above). Again, percentages prove utterly useless in the absence of more basic questions - such as "is this figure from the population as a whole and does it hold true over time?" and "does the status 'vaccinated' line up with the status 'produced antibodies in response to vaccination'?", and "since population profiles vary widely, what use is a single blanket percentage anyway?"

What allows Dorey to lie this easily? People don't understand statistics. They don't even understand simple percentages and the limitations thereof.

Still, Dorey's innumeracy can result in some funny moments, when her own made-up figures are used to disprove her own made-up assertions:

 

So anyway, that's why the car theft banner annoys me, and why everyone should stop using ungrounded, unsubstantiated, context-free percentages right now, unless you actually understand how they work and how to present them correctly.

Thank you.

Somebody call Meryl a Waaahmbulance

Posted by Meryl Dorey over at Australian Vaccination Network HQ:

Paraphrased: "Waaaah. Me not know how to a SEO. Therefores anyone who does must by an criminal. Kew E Dee. Also what are an wiki?".

Of course, reading comprehension levels over at the AVN are primary-school level at best, so it's no surprise they think this article by Krelnik is about censorship. It's not. It's about improving search results to bring factual information into searches which may return a large quantity of misinformation - something that is actually the core business of a search engine.

And of course Meryl is very sore about WoT, because her site's rating on it is abysmal, and was even before SAVN caught on to it. She has to tell her acolytes to ignore the warning every time she provides a link, which is frankly hilarious to watch.

PAY NO ATTENTION TO THE MAN BEHIND THE CURTAIN. BUY MY STUFF. OBEY HYPNOMERYL.

Oh, the lulz. Oh, the huge manatee.

Is Meryl Dorey Anti-vaccine? Let's Ask Google

Meryl Dorey is fond of claiming that she is not anti-vaccine, but is in fact pro-choice. How can we sort out this seeming dichotomy?

Well, obviously, in the way all the greatest fights are settled - Googlefight.

Is Meryl Dorey anti-vaccine or pro-choice?

Well. I think that's settled. Stop The AVN are right after all.

Narrowneck track, 21st Jan 2012

Today, despite thrashing rain and thunderstorm warnings, I took my bike for a bit of a ride.

Driving out to the Blue Mountains in driving rain - and a couple of scary aquaplaning moments - I questioned the wisdom of doing the ride at all. There was a lot of rain on the radar, and thunderstorm chances were high, but arriving at Katoomba things looked dry-ish

So, off I went. The first potential mistake happened when I parked on Cliff Drive. The start there is, I have subsequently discovered, at the top of a category 5 climb. Lovely on the way down, pretty harsh on the way back up. However I digress.

The rain was minimal as I started, but within three minutes, as I arrived at the sensible riders' parking spot, the rain was battering down.

I had second thoughts. For about two minutes. Rain doesn't bother me in and of itself. The effects of rain do, but more anon.

The official start of the track is a little further along, past some steep tarred road, and though there is a small descent immediately after the gate, you're looking at another 5-6kms of on-off climbing, until the really good bit starts.

And it's the final half of the outbound ride that really makes the day. Raining insanely as it was, I found the lesser inclines welcoming, and the surrounding forest began to open out, leading to a long descent to the lookout at the far end of Narrowneck, where I caught up with three riders I'd be trailing behind for most of the way

Which is where this happened

Oh Lawdy. Thunder.

Shortly before that, I'd seen a perfectly straight, single bolt of lightning between the valley floor and a point in the clouds below where I was standing. I was slightly worried about running the last 12-13km back along an exposed ridgeline, on a metal contraption, with that storm heading my way.

So I started to head back.

It was during this run back, which if anything was easier than the ride out, that I rediscovered some old habits. Such as conversing with my own legs. They tend not to answer directly, but they seem to at least respond somewhat, though the climbs became walks in short order. And the rain continued.

Additionally, I realised that the sandy soil of the Blue Mountains, when mixed with water, becomes a grinding paste. The sandy mud is probably less of a problem for a modern, disc-brake equipped bike, but my bike is early-90s vintage and still runs cantilever brakes, grinding sandy mud against my expensive-back-when-I-bought-them rims.

My wheels are in trouble. If I ride these trails much more, I'm going to have to buy new wheels three times a year.

Still, I was almost back to the car. With only a very large descent - and then that cat 5 climb - to go. And on the descent I discovered that I'm rubbish at judging corners whe I have no glasses on. And the tree I crashed into (non-injuriously) was probably as surprised as I was. Still, it was nice to get the heart racing (more) before the final climb.

I slogged hard but still ended up pushing the last section, though when the riders I'd met earlier drove past me, they gave me a hearty "great effort" for my work.

Verdict on the route: Fantastic, would get 5 stars in dry conditions. So I'll be back, obviously.

Now, give me more beer.

A sense of entitlement

Quoth the Dorey:

Let's leave aside the (somewhat disrespectful) red herring of "anti-choicers" for a moment, and examine the rest of this absurd tweet.

In Australia, there is an entitlement meant to encourage vaccination, which was recently revised. You are only entitled to this if you completely vaccinate, or have a valid reason that excludes you from vaccinating.

Do you get this, Meryl? It is an incentive to vaccinate.

Therefore you're only entitled to it if you vaccinate.

Imagine for a moment, a government incentive to insulate your property. A fine idea, and one which benefits everyone (except perhaps the power companies) in these environmentally conscious times.

Should you be entitled to receive the insulation incentive if you don't insulate?

Should you Meryl?

Come on Meryl, should you be entitled to receive an isulation incentive if you don't insulate?

And if so, what the fuck is the point of the incentive in the first place? You don't have to be an economist to realise that offering an incentive - in order to to encourage people to take action - is useless if you do not make the incentive contingent upon that action. If you arrived in economics 101 without having an inkling of this, you'd be laughed out of the opening lecture.

Are you really this stupid, Dorey? Are you really?

To Meryl Dorey, 'irony' means 'a bit like an iron'

I'll just leave this here

Nice work Ed

 

It's like Meryl's decided she wants to do our job for us, it really is.

Support This Petition

 

A Thought Experiment

Over the last day or so, The Australian Skeptics Facebook Group has played unwilling host to a group of 11/9* Troofers, desperate, yet hilariously unable, to convince the skeptics of their hypothesis that the World Trade Center attacks were in fact a deliberate demolition job orchestrated as a false-flag operation.

Sigh

I normally steer clear of this nonsense, but since the troofers have been such obnoxious arseclowns, I feel I have to beat them up a little in a blog post, even if it is in a cursory manner.

Their hypothesis, in a nutshell, is that the buildings were deliberately demolished using nano-thermite charges on the core columns, presumably by skilled demolition experts in the employ of the US government. Or, knowing the kind of cranks we're talking about, the shadow government - by which of course we don't mean Tony Abbott's Federal Opposition.

On the other hand, the skeptics, in a nutshell, are relatively content to believe the official story that nineteen hijackers boarded four commercial flights, hijacked them, and crashed them, three hitting their (presumably) intended targets. The buildings then fell from a combination of direct structural damage and uncontrolled burning.

Sure, there are details that may never be known. The buildings, after all, were relatively unique and now non-existent. Many of the people who could have supplied detail are dead. The hijackers themselves are likewise dead. The financiers and chain of command are either dead or in hiding.  There are many avenues of enquiry closed off. However, that doesn't mean we lack the evidence required to guide us to the essentials of the issue - that nineteen hijackers crashed planes into three buildings and a field, resulting directly in the collapse of two of those buildings and indirectly in the collapse of another.

The troofers are stunningly incapable of evaluating probabilities and possibilities, so as an illustration, let's do a little thought experiment.

We'll concentrate on access to the point of action.

  • In the official story, the key physical location is a point just outside the flight-deck door on a commercial flight. Once access is gained to the flight-deck, the rest is cake. You need to be within  three metres of the door with a member of cabin staff close enough that you can call them over. Doing this on four flights would be good, but even one would be considered a limited success.
  • In the "unofficial" story, the key physical location is the core steel columns on sufficient floors of three steel-cored high-rise buildings, the tallest two of which are 110 stories high. You need to be at the columns on, say, alternate floors, with sufficient time to attach thermite charges and run the cabling required to trigger them. But let's be charitable and say you just have to reach them and sign your name in spray paint, once on each column, on alternating floors. Then get out, undetected. If you're detected, the whole game is up.

We'll give 20 hypothetical skeptics a budget of $10,000. We'll give 20 hypothetical troofers the same.

The aim is to get access to their targets.

Who's going to get there first?

And there's one of the things. Commercial airliners are essentially public access, whereas the structural areas of large office buildings aren't. You can buy a ticket on a commercial flight for a few hundred dollars, and join a few hundred other people in filing onto the plane, at which point the 'target' is a matter of a few metres away. You can get up, walk over to a member of cabin staff, take them aside as if to ask a question and you've completed the test. It's a low-cost, low-technology, low-complexity vector of attack, and in pre-11/9 aviation, it was simplicity itself to get there. These days it's a bit more inconvenient, and it's harder to smuggle a dual-use weapon into the cabin, but it remains a relatively simple operation.

Whereas getting access to the structural columns of a building? Well. try it. Pick an office building and look at the access control measures. These are NOT public places. You have locked doors to get past. You have access control technology such as swipe card entry, as well as conventional locks on maintenance zones. You have mantraps which are designed to funnel intruders into fire stairs and lobbies rather than operational areas. You have thousands of people working nearby, any of whom may ask inconvenient questions. If you work in one of these buildings, try getting in without your usual ID card. Then try getting to the core columns.

You also have security guards and cameras. In the US particularly, you have armed response measures which means you may be shot if you're trespassing in the wrong place at the wrong time. Sure, airports have security guards and cameras too, but you're bypassing them using the simple fact that you're meant to be there. You're catching a flight.

Seriously, try getting into an office building and gaining access to the maintenance ducts and the liftwell. You need a high-complexity and possibly high-technology solution. The risk of failure is high. To overcome these restrictions, you need a complex plan of attack, by highly skilled operatives. Remember, you have more than five hundred columns** to which you need access, and you'll be doing it while the buildings are occupied - not necessarily during the daytime, but you can't cause too much disruption or the tenants will kick up a fuss. And you need to do this in a short time-window, so the sabotage won't be discovered.

So let's double the budget. Easier? Not really. Let's double it again. Let's keep doubling it. Does it get any easier as the budget rises? Not really. And the more money you spend, the more of a trail you leave. A higher budget will become a liability here. Large sums of money are easy to trace, especially in the US where there is mandatory reporting for large transactions. Bribing guards to turn a blind eye, or buying your way into a maintenance contract are both possible, but easily spotted, methods with a high risk of failure.

Let's add more people. Does that help? Well it might, but the more people you add, the less likely it is that you're going to keep it secret - and secrecy, remember, is key. You're also going to have skill shortages, given that we're talking about demolition experts here. 

There are plenty of scenarioes you can try in your mind. Trying to figure them out is, of course, an exercise to the reader. The point though is this: how likely is it, really, that the troofers' absurd spy-novel scenario is remotely true? The chances of pulling it off are astronomical and while each step in the chain may be possible it's also a long way from plausible. Whereas getting within spitting distance of the cockpit on a commercial flight is easy. Or was, pre-2001

To be a skeptic is not to automatically question every conventional explanation for a given phenomenon. To be a skeptic is to know how to evaluate evidence and probability, to see flaws in reasoning and to guard against cognitive biases that lead to comfortable - but wrong - answers.

In this case, the real answer is that a low-tech but audacious plan succeeded, where a high-tech, high-complexity solution would be incredibly difficult to mount and with near-certain risk of failure. To think otherwise is to mark yourself as a credulous and desperate idiot willing to waste brainpower on absurdly far-fetched nonsense in the pursuit of... what exactly? Why would you want to believe something so far-fetched? What is so important that you could bend the rules of logic so close to breaking point?

Sigh. Again.

So anyway, now we've settled the access question, we can move on to "which is easier to obtain, flight training or demolitions training?". Then "which is easier to obtain, nano-thermite or box-cutters?"

Occam's razor should already be furnishing answers to these questions, if you've any experience wielding it.

I won't run these scenarios though, because it gets tedious and troofers are boring, but at least I've got this post out there. Now, let's see how long it takes until I have to close comments on this post because of gabbling troofer clowns, shall we?

 

* we're in Australia. 11/9 it is.
** a generously low estimate based on an assumption that four columns per floor on alternating floors of three buildings is sufficient. Perhaps you'd need more. Perhaps you'd need less.

To prove I don't just cover Half Man Half Biscuit and The Smiths...

... I'm covering another Northern English band which heavily influenced my formative years.

The Wedding Present

This time round, it's "Blue Eyes", track one from the Hit Parade albums, which open the intriguing possibility of covering all twelve hit parade singles in order, if I can muster the dedication required to arrange and learn all twelve tracks.

 

 

As is traditional at the moment, the cover was played on my Cordoba tenor ukulele, my aNueNue concert banjulele and my MusicMan Stingray electric bass - with support of Roland amplification - into my Yamaha USB mixer via a Behringer Condenser mic and thence to Audacity, in what I've come to think of as my "low complexity" setup. One mic for everything means less mucking around by far, though the sound quality can suffer a bit (especially with a fan running in the room at the same time as a high-sensitivity microphone).

I'm threatening to add some accordion to this track. Be warned.

UPDATE: declared "ukuleletastic" by David Gedge himself. Which made my fucking weekend, I can tell you.

Shorty Awards 2012: Support #StopAVN

Nominate Stop the AVN for a social media award in the Shorty Awards!Nominate Stop the AVN for a social media award in the Shorty Awards

Yes, it's that time again. Time for the Shorty Awards.

This year, I'm supporting and promoting a Shorty for @StopAVN in the #Activism category.

If you have an existing, active twitter account, please join me in voting for @StopAVN., and help out by promoting this initiative to your followers, the more the better.

Of course, shenanigans have happened before (see the comments trail here), so I'll be following any responses from the antivax side with interest, and I've started a wiki hub page here. Let me know if you see dodgy behaviour from any side.

#stopavn's Operation Nutcracker: Wings Over Woodford

Vaccination Saves Lives: Stop The Australian Vaccination Network

Right now, as I hit "publish" on this post, anti-vaccination campaigner Meryl Dorey will be preparing to speak to the crowd at Woodford Folk Festival's Blue Lotus. Speaking against her will be Professor Andreas Suhrbier, an immunology expert who actually does know some facts about vaccines. It's an absurd, even comedic mismatch of knowledge, bringing together as it does one of Australia's leading experts in vaccination and an innumerate conspiracy theorist from Northern NSW.

While this is going on, 500ft above the Woodford site, a banner will be unfurled, sending a simple message to everyone on the site, not just the few hundred squeezed into the Blue Lotus.

VACCINATION SAVES LIVES

Now, Big Farmer refused to stump up the money*, so this simple but important public message was funded through community donations. Upwards of 30 members of Stop The AVN put in cash to fund this effort, which was coordinated by the marvelous Robin Hilliard.  This was true citizen activism, and it puts the craven appeals of Meryl Dorey to shame - because this money actually went to the project it was meant to fund.

Oh, and incidentally the cost amounted to less than 1% of the AVN's annual reported revenue.

But perhaps a recap, now that Woodford is in full swing, would be appropriate?

In early December, a group of bloggers became aware that Meryl Dorey, disgraced sometime president of the Australian Vaccination Network, was booked to appear at the Woodford Folk Festival, and would be delivering a talk entitled "Autism Emergency: 1 child in 38". Meryl Dorey is Australia's most prominent anti-vaccine campaigner and, more recently, Australia's most debunked woman. Her anti-vaccine, anti-science, anti-reality spoutings sparked such outrage in 2009 that a loose-knit group of concerned citizens came together to form Stop The AVN, which has been fighting anti-vaccine rhetoric ever since. The AVN has since had its charity status revoked, and was subject to an unprecedented public warning issued by the NSW HCCC.

Dorey's appearance at Woodford would have perhaps been her most high-profile unopposed appearance since the emergence of Stop The AVN, whose tireless efforts have led to the media spotlight being turned, with most outlets now rejecting her "expertise" - some spectacularly, such as Tracey Spicer hanging up on Meryl mid-sentence. Some hold-outs remain, generally in conspiracy-mongering talkback jock backwaters, but overall her audience is vastly reduced.

So there was no way Stop The AVN would be letting Dorey have a free kick at Woodford.

Grassroots support soon emerged after a few key blogs put out stories. Mama Mia showed some interest, and on 13th December published a story on the piece which has become the definitive description of  the Woodford Problem. The comment area became a warzone within minutes, though the side of vaccine advocacy had the clear upper hand in terms of intellectual supremacy and, oh, you know, facts. Even Dorey popped by to post some poorly-doctored graphs but was soundly sliced to ribbons by commenters wielding the scalpel of scientific fact.

All the while, more blog posts were springing up, Twitter lit up with Woodford-related tweets, and mainstream media started to show an interest. More high-profile bloggers joined the groundswell, and eventually Bill Hauritz, festival organiser, popped his head over the parapet to defend his position to Mamma Mia's Rick Morton.

He was unapologetic, even combative.

At this point, all hell broke loose. This is where an easily handled PR pothole turned into a gaping rift of public disapproval. Folk festival promotes known health danger. Organiser unapologetic. Public furious. Newspapers, TV and radio picked up the ball and ran, and all the while the internet kept hammering away. Hauritz backtracked on his story and claimed he'd referred the matter to the committee. QLD Premier Anna Bligh expressed serious concern but noted she couldn't exert editorial control. AMA QLD president Dr Kidd gave a sternly worded expression of disapproval and best of all, QLD Health Minister Geoff Wilson branded Dorey's information "nonsense" and called the AVN a "fringe group" (both true).

If Dorey had any shame at all, she'd have fled the country with a towel over her head.

But still, Woodford kept her on the bill.

That is until Christmas eve, when a post hidden away on the Woodford Facebook page was unearthed in a sweep by a few moderately bored SAVN members. Apparently, Dorey's talked had been pulled and replaced with a "forum" in which Dr Andreas Suhrbier would bring the facts, and Meryl Dorey would get to wield the bullshit.

And that brings us here. With a plane orbiting Woodfordia at 500ft and, if all goes according to the established standards of reality, Meryl Dorey having her ass handed to her on stage in a finely crafted presentation box. Consider it a late christmas present, Meryl.

As for Woodford, do you think they'll want this kind of fiasco again next year? Not if they're sane. I have no doubt the festival's backers will be questioning whether this sort of media storm will be happening again. In fact, I guarantee it, because we'll be reminding them.

So, in summary, The Woodford Fiasco is another nail being driven home into the AVN's coffin-lid, though the anti-vax zombie that is the Australian Vaccination Network continues to twitch and call out for MOARR BRAINS!!

Help us put a stop to it once and for all. Join Stop The Australian Vaccination Network.

 

* none of us actually asked Big Farmer. He's very busy at this time of year. I think he moonlights as Santa Claus.

I hope you end up a cripple at 40

So saith Chiropractic Assistant Lily Phenomene, of Carine Glades Chiropractic*, in this comment from the Stop The Australian Vaccination Network Facebook page.

 Why? Well, I had the temerity to equate homeopathy and chiropractic with "witch doctors". HOW DARE I?

Well, here's the thing. Well, technically, here are the things. Chiropractic, in its original form, is little more than faith healing. Faith healing dressed as physiotherapy, but faith healing nonetheless.

How so?

Allow me to explain.

D.D. Palmer, the originator of chiropractic, posited that health was maintained by a poorly-defined "energy" he referred to as "Innate Intelligence". Blockages - called subluxations by chiropractors - in the transport of this "Innate Intelligence" are asserted as the cause of organ weakness and, therefore, disease.

Innate intelligence is explained as an energy "flowing down" from god. Yep, you heard right. Archetypal vitalism is at the root of chiropractic.

- "Subluxations" are the primary "cause" of disease, and restoration of nerve flow is essential to healing.
- The "Innate" is said to represent 'Universal Intelligence' (God); the function of 'Innate Intelligence' (Soul, Spirit or Spark of Life) within each, which D.D. Palmer considered a minute segment of 'Universal.'
- The fundamental causes of interference to the planned expression of that Innate Intelligence are Mental, Chemical and/or Mechanical Stresses that create the structural distortions that interfere with nerve supply.

From the NCAHF fact sheet on chiropractic (2001) by WIlliam T. Jarvis PhD

So please explain to me exactly what differs this assertion of divine energy from the claims of witch doctors and faith healers?

In fact, not all chiropractors subscribe to this hypothesis of the divine. Over the years, chiropractors have unashamedly adopted and co-opted techniques and ideas from other branches of therapy, both legitimate and quack, taking what Palmer defined as the fundamental core of Chiropractic and augmenting it with other modalities, against the Palmers' original and strictly hammered-out principles.

The entire problem was one of survival in the mind of B.J. Palmer-a preservation of the ideas and principles promoted by his father. Chiropractic must remain chiropractic in order to survive as a "separate and original healing art," and the only thing original in chiropractic is the doctrine of vertebral misalignment as a universal cause of disease -- the cure of such disease being effected only by spinal manipulation.

From Bonesetting, Chiropractic, and Cultism, 1963, Samuel Homola DC

 B.J. Palmer failed in his quest to maintain chiropractic as a fundamentalist cult of the subluxation, however over the years other chiropractors have attempted to tread the same path - bringing chiropractic back to the One True Cause Of All Disease: The Subluxation. These zealots are still with us, promoting with pride the discredited idea of subluxation as the cause of all our ills, claiming they can treat colic, bedwetting, ear infections and asthma, and even revelling outright in the faith-based nature of chiropractic. It's not like I haven't written about this before.

This is not a phenomenon confined to the faith heartland of the USA, either. Here in Australia at least one, possibly several, professional chiropractic boards of practice have been stacked by subluxationist zealots such as Newtown-based anti-vaccinationist Nimrod Weiner, who has been arrogantly pushing for the re-ascendance of the subluxation since his time at Macquarie University. The population of chiropractors who attempt to restrict their practice to ailments such as lower back pain, for which some evidence exists, are perhaps acting as physiotherapists under another name, but they're also being marginalised  by a vocal subset of quacks and being elbowed aside in the rush to promote nonsense. A clear symptom of the problem is that most of the professional support for the AVN comes from chiropractors. You don't give money to a solidly discredited anti-vaccination organisation unless you're riddled, lousy in fact, with misinformation.

There are no solid numbers on what proportion of Australian chiropractors subscribe to the absurd, faith-healing fundamentalist side of the profession (a 2005 US study found around 25% subscribing to Palmer Upper-cervical/HIO technique), but what is clear is that they're a very vocal subset, out of proportion to their actual size.

So... again, I'll ask. Given that subluxation is all about an ill-defined spiritual energy, and given that classical chiropractic posits a simplistic and unsubtle solution to this 'issue', and given that so many chiropractors are unflinching in their embrace of the faith-based nature of Palmerian chiropractic....

Why am I not allowed to call it witch doctoring?

 

 

 * please note. I am not suggesting that Lily subscribes to any of the above nonsense. I have no way to know either way, since she is currently declining to respond. I merely point out that she's certainly prey to knee-jerk reactions and perhaps not fully alongside the origins of chiropractic, despite being paid as an assistant in said profession.

Meryl Dorey and the Magic Water

Meryl's latest absurd scrawlings concern homeopathy, and take as their theme the skeptical dismissal of this modality as "magic water". Meryl, it seems, is somewhat resentful of our stance on homeopathy, and she explains this. She then goes on to spin us a yarn based, apparently, on the experiences of a "friend" whose husband apparently had a miraculous recovery thanks to some sugar pills bathed in almost pure water. A friend-of-a-friend tale in the classic vein.

I have a tale too, Meryl.

When I was a young lad of perhaps ten years old, my parents took me to see the great Paul Daniels at our local theatre. I watched wide-eyed as Daniels proceeded to perform wonders - including, if my memory doesn't fail me, a take on the classic "sawing a woman in half".

I gazed on as Paul Daniels cut Debbie McGee in half, and afterwards I lined up for his autograph and said a quick, bashful, overawed "hello" to both Paul and Debbie. Debbie, intact and, to my eyes, quite radiant.

How was this possible?

I saw it with my own eyes. He really cut her in half. It must have happened, right?

Well, no.

It's a trick, Meryl. Quite a classic trick, but a trick nonetheless. It takes our everyday human perception and uses it against us. Contortionists can "dodge" the blade. The table can be tricked up. The box can be bigger than we think it is. The saw can be gimmicked. There are lots of ways to perform this illusion. At no point is the woman actually cut in half.

And so it goes with homeopathy. The trick of homeopathy relies on several flaws in common human perception, including.

  • Correlation versus Causation - two events appear connected in time even though no causal link may be present - post hoc ergo propter hoc
  • Confirmation Bias - it is expected to work, therefore confirming evidence is privileged over disconfirming evidence. This is often known as "selective memory"
  • Placebo effect - a not fully understood effect, but one which contains a heaping helping of reporting bias. The patient reports feeling better even though objective measures of the condition may remain unchanged

It's just a trick, but you have to think carefully to see through it.

Unfortunately, some people seem to think you can really saw the woman in half, and that's where it gets dangerous, even tragic.

Take, for instance, the case of Penelope Dingle. Penelope was convinced by her homeopath - and to a certain extent, her husband - that homeopathy could cure her rectal cancer. Here are some quotes from the coronial inquest.

"I am human and open to mistakes and the catastrophe that happened around Francines treatment was perhaps the biggest mistake I will ever make in my life.  That is easy to see in hindsight but not so easy when you’re in it and don’t know what is going on" - Dr Peter Dingle, husband of the deceased

and

"The events which followed highlight the dangers associated with persons relying on non-science based alternative treatments and  the importance of placing reliance on reliable information. "

Make no mistake about it. Fancine Scrayen, the homeopath, Peter Dingle, supposed health expert and Penelope Dingle, the victim, all thought you could really saw the woman in half.

Penelope Dingle climbed compliantly into the box. And the woman died. In agony.

I encourage you to read the inquest finding. Make yourself a cup of tea, sit down for a while. And read it.

Worse still may be the cases of two children, Gloria Sam - who died when her parents decided homeopathy could treat her severe eczema - and Isabella Denley, whose parents tried to treat her seizures with homeopathy and failed.

At least Penelope Dingle was an adult, presumed by society to be able to make her own decisions. Children cannot decide for themselves and should be protected from charlatans who think that they can saw the woman in half for real.

These three cases are all Australian and recent, and Meryl should be fully aware of them, though she's clearly filed them away in the "don't talk about this" box.

In each of these cases, the victims died of disease, but it was homeopathy that killed them.

There are many more. Browse here for some examples.

Meryl Dorey's adherence to the absurd and long debunked fraud of homeopathy is just another reason why she must be stopped.

Christopher Hitchens: 1949 - 2011

Image: Vanity Fair

#WoodfordFF is NOT about Free Speech

As the Woodford Folk Festival story hits the Brisbane Times and goes international, I think it's time for a reminder.

Many commentators speaking on the topic of Meryl Dorey's upcoming appearance at Woodford Folk Festival have raised the spectre of free speech. It is time to put that spectre to rest.

Let us lay aside the fact that Australia has no statutory right to free speech.

Let us lay aside the commonly understood principle of falsely yelling "fire!" in a crowded theatre.

The Woodford scandal - and it has become a scandal - is not about free speech. It is about privileged speech, and specifically the implicit endorsement of, and provision of a platform to, demonstrably false information.

Everyone in Australia has the same rights to freedom of expression. Every random nut on the street is as free to state his opinion as any other. But that does not mean we should hand them a megaphone, especially a megaphone which is in part provided from the public purse.

And we certainly shouldn't put up a banner which says "we the sponsors endorse these views". And that's what an appearance at the festival implies, however much the organisers try to deny it.

Meryl Dorey is, in all likelihood, the most debunked woman in Australia. A simple Google search, of the kind Bill Hauritz is so fond of, would have turned up hundreds of examples of places where she has lied, prevaricated, misinformed, mangled and generally made a spectacle of herself. Future dictionaries will list the word "dorey" as "the antonym of 'expert'". She is manifestly incompetent to speak on her chosen topic.

So she should not be given the privilege of a free, government sponsored platform to promote her view.

Hand her a soapbox and let her stand on the sidelines, sure.

Don't give her a microphone.

A letter to the organisers of Woodford Folk Festival

Dear organisers

I'm writing to you to express serious concerns about one of the speakers on the programme at the Blue Lotus for this year's festival.

http://woodfordfolkfestival.woodfordia.com/index.php?id=77&venue=9&act=45

Meryl Dorey is the head of the AVN, an organisation known to promulgate misinformation in support of an untrue and dangerous anti-vaccination position. This activity genuinely puts lives at risk.

The AVN is subject to a Public Health Warning by the NSW Healthcare Complaints Commission, and was stripped of its charity status by the NSW OLGR due to serious irregularities in its fundraising activities.

http://www.hccc.nsw.gov.au/Decisions/Public-Statements-and-Warnings/Public-warning-against-Australian-Vaccination-Network--AVN-/default.aspx
http://www.olgr.nsw.gov.au/charitable_latest_news.asp

I have several concerns for Woodford itself. First of all, for the patrons. There will be impressionable young families and people who wish to start new families attending the Blue Lotus. It is infants who are most at risk from vaccine-preventable diseases. Imagine the heartbreak caused to young families such as the McCafferys, whose daughter Dana was taken by Whooping Cough - a disease of which Meryl Dorey claims "you didn't die from it thirty tears ago and you're not going to die from it today". I don't want a young family's memory of Woodford being the day Meryl Dorey lied to them and caused their baby's death.

Secondly, I have concerns for the festival. There is already a public backlash brewing about Dorey's inclusion on the bill, with prominent faces including Mia Freedman picking up the story and several ABC and independent journalists showing interest in the story. I think the very best outcome Woodford can hope for will be to drop Dorey from the bill and issue an apology for including her in the first place. Otherwise the backlash will only grow.

Thirdly, I do worry about regulatory issues. If Dorey conducts any public appeal for funds while at Woodford, she will be in breach of the NSW OLGR's ruling - and although she will not be in NSW at the time, her recent actions in public fundraising have sparked an investigation in WA and would do the same in QLD. The headline "Group breaches fundraising laws during Woodford" isn't going to be a good look for the festival, is it?

For more information on the AVN's deception and law-breaking, feel free to join us on Facebook at Stop The AVN. http://www.facebook.com/stopavn/

Jason Brown

You can write too: qff@woodfordfolkfestival.com @woodfordFF

 

UPDATES: Mama Mia has featured a post by Peter Bowditch on the topic of the Woodford Folk Festival.
The Companion Wiki to this site has an activity hub on the topic of Woodford and Dorey, including social media backlash, other blogs and calls to action

 

Goodies

I feel I have to post on some goodies that have arrived

First, Hal Leonard Publishing, or (more accurately) AMPD and Sasha Music Publishing sent me this fantastic little collection of ukulele songbooks. A few ukulele people from around Australia were canvassed earlier in the year about what was important in a uke book, and what songs we liked and so on. We obliged with the market research, we got a stack of uke books for nowt. Noice.

There's

  • EZ Method Ukulele Songbook
  • EZ Method Ukulele & Ukulele Banjo
  • The Amazing Ukulele Songbook (AU & NZ)
  • The More Amazing Ukulele Songbook
  • The Amazing Ukulele 4-chord Songbook
  • The Amazing Ukulele 3-chord Songbook

They're now available in music shops near you. Tell them I sent you.

Secondly, I picked up some goodies at Sydney Town Hall today. Every so often, the library service has a clear-out and they give away a load of books from Sydney libraries. I picked up, for free,

  • America's Most Hated Woman: The Life and Gruesome Death of Madalyn Murray O'Hair
  • The Feynman Lectures on Physics II and III
  • The Coming Plague
  • Undue Risk: Secret State Experiments on Humans

Some of the titles are sensationalist, obviously, but the subject matter I'm sure will be fascinating, but the real reason I post this is because the giveaway is on tomorrow as well (9th Dec 2011), at Town Hall House, and you can grab more free books and give me a shout for a coffee at the same time. Please do. I'm in the building, and the coffee is good. See you there.

 

Meryl Dorey on Stanislaw Burzynski

Here's Meryl Dorey in 2009 herping talking about testing of medical interventions.

And here's Meryl Dorey fellating lauding Doctor Stanislaw Burzynski, head of a clinic whose product has never passed a Phase III trial (certainly not a double-blind crossover) and which has only been successfully tested by Burzynski.

(source: Skeptic Magazine)

Meryl also hates chemotherapy.

Burzynski's neoplaston product is not only actually a form of chemotherapy, but is also administered in conjunction with other chemotherapy drugs, often in unorthodox and unapproved combinations.

Meryl's one of those thingies. You know. It's on the tip of my tongue. Hippo-something. Hippocampus? Hippodrome?

Nope, I've got it. Hippogriff.

Meryl Dorey is a Hippogriff.

 

Wait, I've got it. Hypocrite! That was the one. Hypocrite. Damn you, oh mercury-damaged memory of mine!

Irreducible?

There's been a creationist or two lurking around on the blog recently*, blathering about complexity. So I'll take the opportunity to drop in a favourite video from QualiaSoup on the topic of irreducible complexity.

Of course, ID is dead, but that doesn't mean this isn't still a fascinating video.

 

* the two creationist respondents "John" and "Marc" posted from strikingly similar - though not exactly matching - IP addresses, both owned by the same ISP. I suspect they're either the same person or else closely allied. Or it's a coincidence that they're coming from the same IP block.

 

Bigmouth Strikes Again - on the ukulele

OK, so this is one of my favourite Smiths songs to play on the guitar - so I figured I should probably learn it on the uke too, and do a cover.

Which proved slightly trickier to arrange than I'd expected.

The song is in C#m, and results in, shall we say, not a perfect set of chords on the uke. It's played with a capo on the fourth fret in most guitar versions. I could simply play it in a different key, but that results in a trickier bassline with different open strings (and I know the C# one quite well), and besides, my voice isn't that versatile.

So I wrangled and fooled around and eventually decided that by detuning the ukulele by a semitone, I could play a Dm shape and get the required C#m, then use F, G, and so on. The only 'barre' chord then being an occasional A#.

Anyway, here it is

 The chords can be found over at Ultimate Guitar, and in fact pretty much anywhere on the net that provides chords is likely to have some version of it. Or you could use this video lesson that some assclown uploaded a while ago.

The intruments used: My Cordoba tenor ukulele, my aNueNue concert banjulele, My beloved MusicMan Stingray bass through my trusty Roland Cube and my voice. I had a guitar track using my Telecaster, but opted to leave it out of the finished mix since it didn't add anything and only served to de-emphasise the uke. Drums were by the Hydrogen GNU Drum Machine.

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