Rationally Speaking

Rationally Speaking #16 - Defrerring to Experts

Sun, 29 Aug 2010 16:00:56 -0400

At a talk he gave at TAM 8, Massimo argued that non-experts in a field aren't qualified to reject an expert consensus, such as that on anthropogenic climate change. Most recently, he has taken Jerry Coyne to task for making a philosophical argument without having the necessary expertise. This raises a number of questions: Are there fields that have no experts, or that have pretend experts? If there is a lot of disagreement among experts on a topic, should we take any individual expert's opinion less seriously? How much consensus is required before a non-expert should say, "OK, looks like this question really is settled"?

Perhaps noted expert George Carlin had it right when he said: "I have as much authority as the pope, I just don't have as many people who believe it."

Rationally Speaking #15 - Q&A With Massimo and Julia

Sun, 15 Aug 2010 17:05:32 -0400

In the first of what we hope will be a regular feature of Rationally speaking, Massimo and Julia answer listeners' questions. These range from what are M & J's sacred cows, to how we should approach morally repugnant claims made by venerated philosophers, to whether we are deluding ourselves believing that our votes count.

Rationally Speaking #14 - Jennifer Michael Hecht on Science, Religion, Happiness, and Other Myths

Sun, 01 Aug 2010 13:00:32 -0400

Author, science historian, philosopher, and poet Jennifer Michael Hecht discusses her views on science, religion, and skepticism. She talks about her book "The Happiness Myth", showing how the very concept of happiness has changed dramatically both in time and across cultures, to the point that it may make little sense to simply ask “are you happy”? Also she makes her skeptical comments on the findings of science, for instance concerning eating and exercise habits, and how the skeptic community's reliance on science borders on religion.

Jennifer teaches at the New School in New York City. She is the author of Doubt: A History: The Great Doubters and Their Legacy of Innovation from Socrates and Jesus to Thomas Jefferson and Emily Dickinson and of The Happiness Myth: The Historical Antidote to What Isn't Working Today, among other books.

Rationally Speaking #13 - Superstition, Is It Good For You?

Sun, 18 Jul 2010 13:00:19 -0400

Is it possible that superstition is actually good for you? Well, it turns out that superstition may, at least some of the time, have beneficial effects. A paper published in 2008 in Science for example, suggests that lacking control over a situation increases people’s propensity to see illusory patterns — the implication being that the latter (a typical component of superstition) ameliorates stress when we feel that things are out of hand. Also, a recent study published in Psychological Science shows that superstition improves people’s performance on certain tasks, presumably by making them more self-confident than they would be otherwise. Add to this a recent article in Scientific American to the effect that people with Asperger’s syndrome are less likely to project agency onto life’s events (and hence tend to be less superstitious), and suddenly the skeptic might not feel so cocky about being skeptical.

Of course we're not advocating in favor of superstition on the sole ground that it may be psychologically helpful. Still, what happens when something that we devote so much time fighting against turns out not to be entirely bad after all?

Rationally Speaking #12 - What About Thought Experiments?

Sun, 04 Jul 2010 13:00:29 -0400

Philosophers are often accused of engaging in armchair speculation, as far removed from reality as possible. The quintessential example of this practice is the thought experiment, which many scientists sneer at precisely because it doesn’t require one to get one’s hands dirty. And yet scientists have often engaged in thought experiments, some of which have marked major advances in our understanding of the world. Just consider the famous example of Galileo’s thought experiment demonstrating (rather counter intuitively) that two objects of different weight must fall at the same speed. And, perhaps more famously, Einstein's light thought experiments, which lead him to the formulation of the theory of relativity.

And then, there are the other kind, like philosopher David Chalmers' famous thought experiment about zombies and the so-called "hard problem" of consciousness. Chalmers comes up with an (admittedly ingenious) little story, and we are supposed to deduce from it the momentous conclusion that there is more than matter/energy to the universe? Still, there are plenty of good thought experiments in philosophy, beginning with the so-called trolley dilemmas meant to probe our moral intuitions.

Rationally Speaking #11 - Guest Eugenie Scott on the Status of the Creationism and ID Wars

Sun, 20 Jun 2010 13:00:22 -0400

Our special guest this episode is Eugenie Scott, executive director of the National Center for Science Education, the premiere organization fighting for sound scientific educational standards in this country, and a permanent thorn in the ass of creationists and IDers nationwide.

Genie updates us on the status of the ID and creationist wars, as well as other issues related to the intrusion of religion in science education. We also recount how, in what may be a very rare event, Genie made Massimo change his mind about something!

Genie is a physical anthropologist by training, and enjoyed an academic career at the University of Kentucky, University of Colorado and California State, before devoting her efforts full time to a constant front-line fight against irrationalism. For this she has been rewarded not just with six honorary degrees (at last count), but also with the first Stephen Jay Gould prize from the Society for the Study of Evolution, and most recently with the prestigious National Academy of Science Public Welfare Medal. She has also authored the excellent Evolution vs Creationism and co-edited (with Glenn Branch) Not in Our Classrooms: Why Intelligent Design Is Wrong for Our Schools.

Rationally Speaking #10 - Nonsense on Stilts

Sun, 06 Jun 2010 13:00:23 -0400

The focus of this episode is Massimo's new book, Nonsense on Stilts: How to Tell Science from Bunk. The book, broadly speaking, is about what philosopher Karl Popper famously called the demarcation problem: how do we tell the difference among science, non-science and pseudoscience? We explore the complex relationship among these, ranging from solid science like fundamental physics and evolutionary biology to definite pseudosciences like astrology and creationism. In the middle are the more interesting borderline areas that include the search for extraterrestrial intelligence, evolutionary psychology, and even superstring theory, to name but a few.

We also discuss other topics covered in the book, including the whole issue of expertise and Think Tanks, which plays such an important role especially in media presentations of issues such as evolution, climate change, HIV-AIDS, or the alleged connection between vaccines and autism. Julia and Massimo also address the ultimate question about pseudoscience: why do we care?

Rationally Speaking #9 - When Smart People Endorse Pseudoscience

Sun, 23 May 2010 13:00:31 -0400

It’s very easy to make fun of not-so-educated people who reject evolution, but what happens when one of the most prominent contemporary philosophers, Jerry Fodor, writes a book about “What Darwin Got Wrong”? Similarly, we can dismiss extreme right wing politician like Senator Jim Inhofe of Oklahoma, who thinks global warming is a worldwide conspiracy of crazy scientists bent on destroying the American way of life. But what happens when two icons of the skeptic movement, Penn & Teller, do a whole show in which they completely deny all the well established evidence of anthropogenic climate change. And of course it is easy to laugh at Jenny McCarthy, the kook who claims (with Oprah Winfrey’s support) that she “just knows” that vaccines cause autism. But, what happens when a politically savvy atheist like Bill Maher says that people who get flu shots are “idiots?"

Rationally Speaking #8 - The Anthropic Principle

Sun, 09 May 2010 13:00:47 -0400

The Anthropic Principle (AP), in its many forms, attempts to explain why our observations of the physical universe are compatible with the life observed in it. From the Weak AP (WAP), which in one form states that "conditions that are observed in the universe must allow the observer to exist", to the Strong AP (SAP) which in one version states that: “The Universe (and hence the fundamental parameters on which it depends) must be such as to admit the creation of observers within it at some stage,” they all try to answer the question of why there is life in the universe, or why the fundamental constants are the way they are. But, do any of these principles add anything to our understanding of the ultimate question of life and the universe?

Perhaps the best answer is embedded in Martin Gardner’s sarcastic proposal of the Completely Ridiculous Anthropic Principle (CRAP): “At the instant the Omega Point is reached, life will have gained control of all matter and forces not only in a single universe, but in all universes whose existence is logically possible; life will have spread into all spatial regions in all universes which could logically exist, and will have stored an infinite amount of information, including all bits of knowledge which it is logically possible to know. And this is the end.”

Rationally Speaking #7 - Peter Woit discusses whether string theory is “not even wrong”

Sun, 25 Apr 2010 14:33:40 -0400

We are taking on fundamental physics! Our guest, Peter Woit, is a physicist in the Department of Mathematics at Columbia University and author of "Not Even Wrong: The Failure of String Theory and the Search for Unity in Physical Law." We discuss the apparently peculiar state of theoretical physics and the rather startling possibility that superstring theory — the best candidate in decades as the elusive “theory of everything” — may actually have been a colossal dead end for the physics community. We also explore the meaning of theory in science, and what is the connection between theory, observation and experiment. As it turns out, superstring theory has not been able to make any empirically testable predictions, which supports the argument that perhaps it isn’t — as Peter puts it — “even wrong,” meaning that it just isn’t science.

Rationally Speaking #6 - Fluffy Thinking

Sat, 10 Apr 2010 11:35:31 -0400

Fluffy Thinking is a peculiar type of uncritical thinking that sounds sophisticated, and is next to impossible to criticize frontally both because it barely has anything to do with empirical evidence, and because it is hard to articulate what, exactly, these people are saying. These people include scientific luminaries like Freeman Dyson and Paul Davies. Also, Karen Armstrong, author of "The Case for God", and Krista Tippett, author of "Einstein's God" and host of National Public Radio's "Speaking of Faith", where scientific notions are regularly distorted and mixed up with barely intelligible mystical “insights” that are put forward as profound truths.

The question is not only whether there is anything interesting in what these people are saying, but rather the much more difficult issue of why it is that smart individuals, who make their living thinking and writing about science and philosophy, are attracted by fluffy thinking.

Rationally Speaking #5 - Neil deGrasse Tyson and the Need for a Space Program

Sun, 28 Mar 2010 09:42:46 -0400

Dr. Neil deGrasse Tyson joins Massimo and Julia to discuss the need for a space program. Many scientists (and most people in the skeptic community) simply assume that funding outlets like NASA are a good idea. But, can scientists justify the enormous expense involved, not just in terms of their personal curiosity, but as a matter of tangible and intangible benefits to society at large? Should we go back to the Moon and establish a permanent base? Is it worth the expense and likely risk to human life to attempt a mission to Mars? What is a space station for, anyway?

Dr. Tyson is an astrophysicist by training and director of the Hayden Planetarium at the American Museum of Natural History in Manhattan. He is also the host of PBS's science NOW. His latest book is “The Pluto Files: The Rise and Fall of America's Favorite Planet.”

Rationally Speaking #4 - The Great Atheist Debate Over the Limits of Science

Sun, 14 Mar 2010 16:11:06 -0400

"Accommodationist" is a word that began to appear in recent months during public debates over science and religion. The derogatory term has been applied to atheists and rationalists like Eugenie Scott, at the National Center for Science Education, and Chris Mooney, science writer at Discover Magazine, who maintain that science and faith are not necessarily incompatible. Although the debate is frequently framed as a practical one, about what the tactics of the secular movement should be, it is also a philosophical one, hinging on the question of the epistemic limits of science. In this episode, we examine the arguments being made by and against the so-called "accommodationists," and ask: Can science disprove religious and supernatural claims?

Rationally Speaking #3 - Can History Be a Science?

Sun, 28 Feb 2010 15:02:11 -0500

Our guest, Prof. Peter Turchin from the University of Connecticut, joins Massimo and Julia to discuss whether history can be studied and understood in a scientific manner. In an article in Nature (3 July 2008) on what he termed “cliodynamics,” he discusses the possibility of turning history into a science. In it, he proposes that history, contrary to what most historians might think -- is not just one damn thing after another, that there are regular and predictable patterns, from which we can learn and that we can predict. Of course, he is not the only scientist to have turned to history in an attempt to make that field more scientific, Jared Diamond’s Guns, Germs, and Steel and Collapse immediately come to mind. And naturally, many historians vehemently object to what they perceive as a crude scientistic attempt at interdisciplinary colonization.

Rationally Speaking #2 - Love, a Skeptical Inquiry

Sun, 14 Feb 2010 10:54:58 -0500

Will science ever really be able to explain love? Science has already found correlations between particular hormones and certain forms or stages of love. However, no matter how many correlations we find between brain activity and love, correlation does not imply causation. And what does it mean to explain love scientifically -- would that change our attitude towards it? We realize that raising this subject risks fueling the widespread and irritating misconception that “skeptic” = “cynical killjoy,” which is the last thing we want to do. As good skeptics though, what do we do when faced with a mysterious and unexplained phenomenon? We look for explanations!

Rationally Speaking #1 - Why be rational?

Wed, 20 Jan 2010 21:11:02 -0500

Why is "speaking rationally" a worthwhile goal anyway? It’s not self-evident, at least not to many people. Human beings certainly don’t seem made for it. Aristotle may have famously dubbed us "the rational animal," but cognitive science tells a different story, with plenty of evidence that our brains blithely flout logic all the time and are excellent at rationalizing our irrational decisions after the fact. Indeed, it is reasonable to ask why fight our irrational natures to begin with? After all, some argue that irrationality can make us happier, at least in certain situations. Then again, perhaps there is a problem with the whole idea of arguing for irrationality...