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Monday, 27 February 2023

The militant vegans are coming.

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David Berlinski has got agreeing to disagree down to a science?

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The fall of college?

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The new Rome? II

 

The gene dethroned?

 New Study: Transgenerational Epigenetics Can Have a Profound Impact


The Third Rail of Evolution

In the spring of 2006 I gave a talk on the campus of Cornell University and afterwards was joined by then Cornell professors Richard Harrison and Kern Reeve for a sort of panel discussion or debate about biological evidences and origins. I presented a dozen or so interesting and important evidences that I felt needed to be recognized in any discussion of origins. The evidences falsified key predictions of evolution and so needed to be acknowledged and reckoned with, one way or another. One of the items on my list was the so-called directed adaptation mechanisms which, broadly construed, can include everything from non random, directed, mutations to transgenerational epigenetic inheritance. But I was in for a big surprise when Harrison and Reeve gave their response.

Directed adaptation is reminiscent of Lamarckism. Rather than natural selection acting over long time periods on biological variation which is random with respect to need, directed adaptation mechanisms provide rapid biological change in response to environmental challenges. Like physiological responses, directed adaptation can help an organism adjust to shifts in the environment. But those adaptations can then be inherited by later generations. Stresses which your grandparents were subjected to may be playing out in your own cells.

In the twentieth century evolutionists had strongly rejected any such capability. Lamarckism was the third rail in evolutionary circles. And for good reason, for it would falsify evolutionary theory. But empirical evidence had long since pointed toward the unthinkable, and by the twenty first century the evidence was rapidly mounting.

While there was of course still much to learn in 2006 about directed adaptation (as there still is today for that matter), it could no longer be denied, and needed to be addressed. At least, that is what I thought.

I was shocked when Harrison and Reeve flatly denied the whole story. Rick waved it off as nothing more than some overblown and essentially discredited work done by Barry Hall and John Cairns, back in the 1970s and 80s (for example here).

But there was a body of work that had gone far beyond the work of Hall and Cairns. Incredulously I responded that entire books had been written on the subject. Rick was quick to respond that “entire books are written about all kinds of discredited things.”

True enough. It was me versus two professors on their home turf with a sympathetic audience, and there was no way that I was going to disabuse them of what they were convinced of.

Confirmation testing and theory-laden evidence are not merely philosophical notions. They are very real problems. I’m reminded of all this every time a new study adds yet more confirmation to the directed adaptation story, such as the recent Paper out of Nicola Iovino’s lab on transgenerational epigenetic inheritance in house flies, which states:

Gametes carry parental genetic material to the next generation. Stress-induced epigenetic changes in the germ line can be inherited and can have a profound impact on offspring development.

The Press release gives little indication of the controversy as it admits that these findings were once considered impossible:

It has long been thought that these epigenetic modifications never cross the border of generations. Scientists assumed that epigenetic memory accumulated throughout life is entirely cleared during the development of sperms and egg cells

It is hard enough to see how organisms can respond intra-lifetime to environmental challenges, but how can it be inherited as well? For epigenetic changes that occur in somatic cells, that information must also enter into the germ line as well. Somehow it must be incorporated into the sperm and/or egg cells.

It is an enormous problem to explain how such capabilities evolved. Not only are a large number of mutations required to make this capability work, it would not be selected for until the particular environmental condition occurred. That means that, under evolution, it would be not preserved, even if it could somehow arise by chance.


Prophet of the master race and his apostles.

 Cambridge UP Book Airbrushes Darwin’s Contribution to Scientific Racism


On a new episode of ID the future historian Richard Weikart (Cal State Stanislaus) dissects a recent Cambridge University Press book on Social Darwinism by Jeffrey O’Connell and Michael Ruse. Weikart, author of Hitler’s Ethic, From Darwin to Hitler, Hitler’s Religion, and The death of humanity, says a major shortcoming of the book is the authors’ attempt to put as much distance as possible between Darwin and eugenics thinking, and between Darwin and Hitler. The new book paints Darwin follower Herbert Spencer as the eugenics-championing bad guy and contends that Darwin and Darwinism had little or no influence on Hitler’s warped master-race ethic. Weikart patiently highlights some key evidence to the contrary, including statements front and center in Hitler’s writing. Did Darwin cause Hitler? No. Would Darwin have approved of Hitler? Almost certainly not. But according to Weikart, Darwin’s own racist and pro-eugenics thinking, combined with some implications of his theory that he himself explicitly expressed, manifestly did lay the groundwork for Hitler’s diabolical outlook on war, “the master race,” “the struggle for life,” and eugenics.

More on why no rise of the machines.





Are you tired of hearing about ChatGPT yet — “basically high-tech plagiarism,” as Noam Chomsky has said? Dr. Robert J. Marks, director of Discovery Institute’s Walter Bradley Center, appeared on a segment of The Agenda recently to examine the hype surrounding artificial intelligence and ChatGPT. He was joined by Melanie Mitchell of the Sante Fe Institute and MIT’s Max Tegmark. Hosted by Steve Paikin, the three discussed the benefits and drawbacks of artificial intelligence and what it means to be human in a technological age, as well as the perennial question of consciousness. You can watch the entire conversation on YouTube:

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Dr. Marks had the opportunity to talk about some of the key themes he discusses in his book Non-computable you: What You Do That Artificial Intelligence Never Will, contending that AI, while it has benefits, does not, and never will, have the creativity, empathy, and personal consciousness unique to human beings.