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Quintessence of Dust

Quintessence of Dust explores science, society, and human nature, focusing on genetics, development, evolution, neuroscience, systems biology, and topics related to scientific literacy. I occasionally discuss intelligent design, creationism, science denial, and other political/social influences on scientific literacy. Additional topics: philosophy, baseball, scientific culture, and Shakespeare. My main theme is scientific explanation.
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Author Stephen Matheson

Last month I had an interesting conversation with Casey Luskin of the Discovery Institute (DI), at Evolution News and Views (ENV), a DI blog/site that recently opened some articles to comments. The topic of the original post was common ancestry in humans and other primates, but Casey and I discussed various aspects of design thought. One subject that came up was the falsifiability of design.

Published
Author Stephen Matheson

Last month I wandered over to Evolution News and Views (ENV), a Discovery Institute (DI) blog, and read a piece by Casey Luskin on the topic of human/chimp common ancestry. I saw some stuff I didn't like, and left a comment, and an interesting exchange ensued. You can read it yourself, but here are some of my comments. Continue reading...

Published
Author Stephen Matheson

Three weeks ago, I went to the Cornerstone Music Festival with my two oldest kids. For the second year, I was an invited speaker in the festival's excellent seminar program. This year, my two series were entitled "Alien Worlds" and "Zombies on Jeopardy" – exploring extreme biology and human nature, respectively. It was fun, if a little too hot for a day or so. At one point, I was discussing human intelligence and its genetic underpinnings.

Published
Author Stephen Matheson

A few months ago, we were looking at the concept of a fitness landscape and how new technologies are creating opportunities for biologists to look in detail at relationships between genetics and fitness. The first post discussed the concepts of a fitness landscapes and adaptive walks, with some focus on the limitations of the metaphor.

Published
Author Stephen Matheson

John Farrell runs an interesting blog at Forbes.com, and he regularly discusses genetics, design, and other topics of interest around here. His latest points to work by Larry Moran and Ryan Gregory, both of whom have debunked some of the "junk DNA" misinformation concocted by design theorists, then looks at some interesting new blogging from one Stanley Rice. It's interesting stuff. Casey Luskin shows up in the comments. Nothing new there.

Published
Author Stephen Matheson

So, Alu elements are mobile DNA modules that can exert diverse influences on genomes and the organisms harboring them. They can affect genome function in constructive ways, by altering gene expression or supporting chromosome structure. And they can be damaging, even deadly. There are more than a million of them in the human genome, and we don't know what each one does.

Published
Author Stephen Matheson

One of the goals of the intelligent design (ID) movement is to show that evolution cannot be random and/or unguided, and one way to demonstrate this is to show that an evolutionary transition is impossibly unlikely without guidance or intervention. Michael Behe has attempted to do this, without success. And Doug Axe, the director of Biologic Institute, is working on a similar problem.

Published
Author Stephen Matheson

Defenders of intelligent design theory often dwell on the topic of "junk DNA," which has been molded into a masterpiece of folk science. The ID approach to "junk DNA" involves a fictional story about "Darwinism" discouraging its study, and a contorted and simplistic picture of a "debate" about whether "junk DNA" has "function." The fictional story is ubiquitous despite being repeatedly debunked.