Search Results for "homeopathy"

Nov 14 2013

Is There a Pseudoscience Event Horizon?

Earlier this week Massimo Pigliucci over at Rationally Speaking wrote an intriguing blog post asking whether or not there is a pseudoscience black hole – a point beyond which a pseudoscience gets sucked in and can never escape? Asked from the other direction – are there any historical examples of a pseudoscience that became legitimate, essentially turned out to be true?

I thought this was an interesting enough question to pick up the ball and explore the question further.

First, the question requires a discussion of what is pseudoscience. This is a common topic of discussion among skeptics. Any definition must contend with the demarcation problem – there is no bright line between legitimate science and pseudoscience. Rather, there is a smooth continuum, although I do think the distribution along that continuum is bimodal.

The differences between science and pseudoscience have to do with process, not subject matter. Pseudoscientists display a number of typical behaviors  (I will quickly list some of them here, but I am overdo for an updated post just on this topic):

Continue Reading »


74 responses so far

Oct 04 2013

CAM Research – Be Careful What You Wish For

Edzard Ernst is the first professor of complementary and alternative medicine (CAM). He began 20 years ago as a CAM enthusiast, and a trained homeopath, and genuinely wanted to point the critical eye of science onto CAM. Many CAM proponents claim this, but Ernst was different in a key respect – he wanted to use rigorous scientific research to find out if CAM worked, not to prove that it does.

He recently wrote about his 20 years of CAM research, and eloquently makes this point. He writes:

Unfortunately, we also had a few co-workers who, despite of our best efforts, proved to be unable of critical thinking, and more than once this created unrest, tension and trouble. When I analyse these cases in retrospect, I realise how quasi-religious belief  must inevitably get in the way of good science. If a person is deeply convinced about the value of his/her particular alternative therapy and thus decides to become a researcher in order to prove his/her point, serious problems are unavoidable.

Problems are indeed unavoidable. There is a problem with researcher bias and publication bias in medical research. Science magazine also reports on a “sting” operation in which an author submitted a hopelessly flawed paper to 304 open access journals, with more than half accepting the paper for publication. There are plenty of places to publish terrible research that proves whatever point you wish to make.

Continue Reading »


7 responses so far

Sep 26 2013

The Pharma Shill Gambit and Other Nonsense

Those of us who have been writing about science and medicine for a few years or more quickly experience the fact that there is a subculture of people who are greatly hostile to our message. In addition, they tend to use the same fallacious arguments against us over and over again, as if they are reading from the same script.

As a result we answer the same bad arguments repeatedly, at least so that those who are paying attention will be more prepared to deal with such arguments themselves. Earlier this week Harriet Hall wrote an excellent post over at Science-Based Medicine in which she answers 30 common fallacious arguments against SBM.  The next day I received a comment here that parroted some of the same arguments yet again.

I have addressed these common anti-SBM arguments multiple times, mostly in piecemeal, so it’s good to have Harriet’s post as a sort-of SBM FAQ. Before you leave a critical comment, read the FAQ.

Continue Reading »


28 responses so far

Sep 24 2013

Misinformation from Mayo Clinic

The Mayo Clinic is a recognized center for excellence in both clinical medicine and research. They also maintain one of the best medical information websites on the net. I often find myself there when searching for information on a topic with which I am not familiar.

The Mayo Clinic also represents the current problem with academic medicine and the current fad of so-called complementary and alternative medicine (CAM) – they just don’t get it. They do not seem to understand what CAM really is, its history,  its current practice, and the state of the evidence. But they know it’s out there and people are interested in it (because they are told they should be) and so they feel the need to address it.

When they do address CAM, however, they have apparently done what most academic centers have done in my experience – they turn it over to “CAM experts,” which ends up being CAM proponents. The result is that CAM propaganda and shameless promotion becomes endorsed by an academic institution (what my colleagues and I have come to call “quackademic medicine”).

Continue Reading »


22 responses so far

Sep 20 2013

Health Canada Misses the Point

This is an unintended follow up to my post yesterday about holding the line against pseudoscience – this time with regard to regulations. It is one thing to lend an organization’s reputation to pseudoscience, and another when outright unscientific practices are given official sanction by a government or regulatory body. It continues to amaze me how naive (or perhaps it’s just politically expedient) such regulators can be.

On September 6th Nathan Kunzler and Arthur Caplan published an excellent editorial in The Star in which they called out Canada’s public health agency for hypocrisy. They pointed out that, according to Health Canada’s own website:

“To be licensed in Canada, natural health products must be safe, effective, of high quality and carry detailed label information to let people make safe and informed choices.”

Therefore, if they license a product they are proclaiming it safe and effective. Health Canada licenses homeopathic products, which are not effective. They are nothing but placebos, magic potions based on prescientific notions and with “active ingredients” that are often diluted beyond the point where any original substance is likely to remain. Homeopathic products are therefore literally nothing. Further, clinical trials have consistently shown that they do not, in fact, work.

Continue Reading »


12 responses so far

Jun 17 2013

A Homeopathy Debate

On two occasions I was invited to UCONN to debate the scientific legitimacy of homeopathy - in 2007, and again in March of this year. I often directly confront or debate those who hold an unscientific belief. Sometimes this is criticized as being pointless, but that claim is premised on the assumption that the only point to such a debate is convincing the person on the other side, but that is not the case.

I have several goals in direct confrontation: to better understand the claims and logic of those holding that view, to explore my own position and improve my ability to explain it, and to demonstrate scientific and critical thinking with respect to this issue to the audience.

The more recent homeopathy debate was between me an Andre Saine, a Canadian naturopath and homeopath. During the debate we barely scratched the surface of this complex topic, so we both agreed to continue our discussion in writing, moderated by Peter Gold who organized the debate.

Here is Andre’s first question to me, and my answer.

Continue Reading »


41 responses so far

May 23 2013

The Younger Dryas

Published by under General Science

I love raging scientific controversies. I am not talking about vaccines and autism, global warming, evolution, or homeopathy – these are not actual scientific controversies. They are political controversies intruding onto science.

I prefer nerdy scientific debates that have insignificant political implications. I like to see two groups of scientists arguing about the evidence over some narrow scientific question.  That way you get pure science without all the distortion and nonsense of politics and ideology. That is when you see how science really works.

Take for example the Younger Dryas. The last glacial maximum ended about 20,000 years ago. That glacial period was followed by interstadial (warm) periods and stadial (cold) periods. The term Dryas refers to the indicator genus (Dryas octopetali) which is a tundra flower that was much more widely distributed during cold periods. Its pollen in core samples is therefore a good indicator of an stadial period.

Continue Reading »


6 responses so far

Apr 30 2013


Imagine applying for a job, a position you really want and feel is a good match for your skills, and during the interview process you are seated in front of a psychic. The psychic is wearing full regalia, with a turban, crystals, and mystical garb. They proceed to give you a psychic reading – a reading which will be used to decide whether or not you will be hired for your dream job.

You can substitute any number of techniques for the psychic reading – a tarot card reading, palm reading, astrological chart, or phrenological analysis. Would you feel comfortable with such techniques deciding your fate? Would you feel outraged?

That is exactly what is happening in many corporations today, particularly in France. The technique that is being used, however, is graphology. It is as legitimate as any cold-reading technique (that is, not at all) but retains a veneer of scientific legitimacy. Graphology, or handwriting analysis, is a psychic cold-reading dressed up for the corporate world.

Continue Reading »


34 responses so far

Apr 18 2013

Predicting the Future

An Iranian inventor claims to have created a machine that can predict an individual’s future 5-8 years in advance. Ali Razeghi claims to have registered “The Aryayek Time Traveling Machine” with the state-run Centre for Strategic Inventions, but the Iranian government denies this.

Details are, as you might suspect, sketchy. Razeghi claims his machine works by a complex “algorithm.” It sounds like it’s a machine, not just computer software. Also he claims that the machine works by simply touching the user.

Obviously this is nonsense, but stories like this (now spread far and wide by the internet) always raise the question for skeptics and scientists – how do we address scientific claims that are “impossible,” and is it even meaningful to characterize anything as impossible given the limitations of human knowledge?

Continue Reading »


29 responses so far

Mar 26 2013

Debating Homeopathy Part II

Yesterday I discussed a recent debate in which I participated at UCONN, focusing on the plausibility of homeopathy. Today I will discuss the clinical evidence, and address some of the strategies employed by my opponent in the debate, Andre Saine.

Does Homeopathy Work?

Yesterday I made the case that homeopathy is highly implausible in many ways, and after two hundred years of scientific advance this extreme implausibility has only become greater. Two centuries has apparently not been enough time for homeopaths to make their case and convince the mainstream scientific community. The only reasonable explanation for this is that homeopathy is simply not valid.

I also took the position that overall scientific plausibility must be considered when looking at any new claim – how well does it comport with existing scientific evidence? In medicine this means, when considering clinical evidence for a treatment, that evidence needs to be put into the context of the scientific plausibility of the treatment.

Continue Reading »


19 responses so far

« Prev - Next »