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Stephen C. Meyer and Marcus Ross lecture on the Cambrian explosion

Cambrian Explosion
Cambrian Explosion

Access Research Network is a group that produces recordings  of lectures and debates related to intelligent design. I noticed that on their Youtube channel they are releasing some of their older lectures and debates for FREE. So I decided to write a summary of one that I really like on the Cambrian explosion. This lecture features Dr. Stephen C. Meyer and Dr. Marcus Ross.

The lecture is about two hours. There are really nice slides with lots of illustrations to help you understand what the speakers are saying, even if you are not a scientist.

Here is a summary of the lecture from ARN:

The Cambrian explosion is a term often heard in origins debates, but seldom completely understood by the non-specialist. This lecture by Meyer and Ross is one of the best overviews available on the topic and clearly presents in verbal and pictorial summary the latest fossil data (including the recent finds from Chengjiang China). This lecture is based on a paper recently published by Meyer, Ross, Nelson and Chien “The Cambrian Explosion: Biology’s Big Bang” in Darwinism, Design and Public Education(2003, Michigan State University Press). This 80-page article includes 127 references and the book includes two additional appendices with 63 references documenting the current state of knowledge on the Cambrian explosion data.

The term Cambrian explosion describes the geologically sudden appearance of animals in the fossil record during the Cambrian period of geologic time. During this event, at least nineteen, and perhaps as many as thirty-five (of forty total) phyla made their first appearance on earth. Phyla constitute the highest biological categories in the animal kingdom, with each phylum exhibiting a unique architecture, blueprint, or structural body plan. The word explosion is used to communicate that fact that these life forms appear in an exceedingly narrow window of geologic time (no more than 5 million years). If the standard earth’s history is represented as a 100 yard football field, the Cambrian explosion would represent a four inch section of that field.

For a majority of earth’s life forms to appear so abruptly is completely contrary to the predictions of Neo-Darwinian and Punctuated Equilibrium evolutionary theory, including:

  • the gradual emergence of biological complexity and the existence of numerous transitional forms leading to new phylum-level body plans;
  • small-scale morphological diversity preceding the emergence of large-scale morphological disparity; and
  • a steady increase in the morphological distance between organic forms over time and, consequently, an overall steady increase in the number of phyla over time (taking into account factors such as extinction).

After reviewing how the evidence is completely contrary to evolutionary predictions, Meyer and Ross address three common objections: 1) the artifact hypothesis: Is the Cambrian explosion real?; 2) The Vendian Radiation (a late pre-Cambrian multicellular organism); and 3) the deep divergence hypothesis.

Finally Meyer and Ross argue why design is a better scientific explanation for the Cambrian explosion. They argue that this is not an argument from ignorance, but rather the best explanation of the evidence from our knowledge base of the world. We find in the fossil record distinctive features or hallmarks of designed systems, including:

  • a quantum or discontinuous increase in specified complexity or information
  • a top-down pattern of scale diversity
  • the persistence of structural (or “morphological”) disparities between separate organizational systems; and
  • the discrete or novel organizational body plans

When we encounter objects that manifest any of these several features and we know how they arose, we invariably find that a purposeful agent or intelligent designer played a causal role in their origin.

Recorded April 24, 2004. Approximately 2 hours including audience Q&A.

You can get a DVD of the lecture and other great lectures from Access Research Network. I recommend their origin of life lectures – I have watched the ones with Dean Kenyon and Charles Thaxton probably a dozen times each. Speaking as an engineer, you never get tired of seeing engineering principles applied to questions like the origin of life.

If you’d like to see Dr. Meyer defend his views in a debate with someone who reviewed his book about the Cambrian explosion, you can find that in this previous post.

Further study

The Cambrian explosion lecture above is a great intermediate-level lecture and will prepare you to be able to understand Dr. Meyer’s new book “Darwin’s Doubt: The Explosive Origin of Animal Life and the Case for Intelligent Design“. The Michigan State University book that Dr. Meyer mentions is called “Darwin, Design and Public Education“. That book is one of the two good collections on intelligent design published by academic university presses, the other one being from Cambridge University Press, and titled “Debating Design: From Darwin to DNA“. If you think this lecture is above your level of understanding, then be sure and check out the shorter and more up-to-date DVD “Darwin’s Dilemma“.

Do moral dilemmas undermine objective moral absolutes?

One reason why some people reject the existence of objective morality is because moral absolutes can conflict.

Canadian philosopher Michael Horner to explains the problem.

He writes:

You may have been confronted with the story of the Nazi soldier coming to the door of the family who are hiding some Jewish people in their home and asking them point blankly, “Are there any Jews here?” The person telling the story then asks you, “What would you say?” or more precisely, “What should you say?”

[…]I think for many people the term moral absolutes connotes ideas like inflexibility and rigidity, and that there can never be exemptions. I have also found that many people believe that holding to moral absolutes means that circumstances are not relevant in a moral evaluation and that moral absolutism cannot handle moral dilemmas. But in fact it is possible to believe in moral absolutes, or as I prefer to call them objective moral values, without adhering to these connotations I have mentioned.

For many people to believe in moral absolutes is to believe in rules that no other rules can ever trump. It follows from this that moral absolutes are all equal and there can never be any exemptions. But what if moral absolutes exist in a hierarchy?

We know from experience that very often more than one moral rule applies to a situation. This often leads to moral dilemmas. So in the ‘hiding the Jews example’ the moral rule of telling the truth seems to apply to the situation, but it would seem that the moral rule to protect innocent human life from torture and murder applies also.

If absolutes are all equal there is no way out of the dilemma. You can’t choose one absolute over another because in doing so you would be violating at least one absolute which, in their view, is supposed to be inviolable.

So, in this case, it seems as if the moral absolutist is stuck in a dilemma. If you lie to save the innocent life, then that would be wrong. But if you tell the truth and hand the innocent person over to murderers, then that would be wrong. Does this really disprove objective moral absolutes?

This problem annoys me, because I know this is the kind of objection to objective morality that annoying philosophy lecturers like to push onto freshmen in order to convince them that morality is nonsense.  But does the moral dilemma objection really work?

More Horner:

[…][I]f moral absolutes exist in a hierarchy and the circumstances or the situation were relevant in determining which absolute takes precedent, then there may be a solution to the moral dilemma. That is exactly what I think is the case in the example. I for one have no difficulty knowing that the morally right thing to do in that situation is to protect the life of innocent people from torture and murder rather than tell the truth to a person who has torture and murder in their plans. My moral intuitions are very clear about this.

If someone objects and says, “No, you must always tell the truth. After all it is an absolute, and absolutes by definition can never be violated,” I would point out that they are just using a different hierarchy, putting truth telling above protecting the life of innocent people from torture and murder. There is no way to avoid making a judgment like that since more than one absolute does apply to the situation. I would just ask them to think it through again, and once they see that they have to make a judgment based on some sort of hierarchy in that situation, then I think most people’s moral intuitions will affirm that protecting the lives of innocent people from torture and murder, in that situation, trumps truth telling. There is no way to avoid choosing one over the other.

But isn’t this moral relativism? After all, we are deciding what to do based on the situation! It’s relativism, isn’t it?

No, it isn’t, because there is always one right thing to do in every situation. In every situation, you always follow the weightiest moral rule. The right thing to do does not depend on your subjective state of mind. It is an objective moral duty, and it is the same for everyone, across all times and in all places. That’s what objective morality means -what is right and wrong is not determined by personal preferences or cultural conventions, which vary by time and place.

And of course, God is the ground of this hierarchy of objective moral absolutes. They existed through him before human beings even appeared, as part of his design for us, his creatures. How we ought to behave is grounded ontologically in God’s design for us.

How Michael Medved’s uncle mentored him to become an influential conservative

I wanted to share a story from the book “Right Turns“, written by Jewish conservative talk show host Michael Medved. In the story, he explains how his uncle got him to accept one of the most important lessons of life.

He tells the story of having a special dinner with his Uncle Moish in chapter 7:

He took special interest in me from the beginning because, he claimed, he saw a chance with me to redeem past mistakes and to do a better job in shaping a finished product than he had done in “raising” his kid brother, my father. I appreciated my uncle’s solicitous attention… Nevertheless, I was only eleven and found it difficult to ignore my other pressing priorities, most notably, my obsession with tacky science fiction movies. I began to pester Uncle Moish to take me to see a heavily advertised shocker called The Brain from Planet Arous.

To my surprise, Moish at least kept the door open to the idea that he would escort me to The Brain from Planet Arous. But first he insisted on taking me out to dinner at a “fancy restaurant” for a very important and very serious conversation.

I dressed up in my one suit for this solemn occasion and remember the discomfort of a too-tight tie and the too-snug shoulders during our steak dinner. Moish allowed me to order absolutely anything I wanted from the menu—in contrast to my unfailingly cost-conscious mother on those rare occasions when I went out to eat with my parents. Looking around that shiny, busy dining room, with all the well-dressed and prosperous adults, I remember feeling conscious of my status as the only kid in the place. After dinner, feeling very important and grown up, I ordered dessert before my uncle leaned his long, serious face conspiratorially across the table.

“Now is the time, Mike, for the talk we need to have. Maybe your parents think you’re too young, or they don’t want you to hear. But I think you’re ready. I think you need it. I think you are going to remember.”

[…]“First of all, let me ask you. Have you ever heard of the Scarlet Plague?”

“I know about the Black Death, Uncle Moish. That was the disease that killed all those people in the Middle Ages.”

‘That’s very good. but no, the Scarlet Plague is even worse. It’s not about the Middle Ages. It’s about right now, and fifty years ago. It kills more people, ruins more lives, than any other disease. And the worst part about it is the people who are most likely to get sick, and who are going to suffer the most, are the brightest minds, the biggest idealists, the natural leaders of this world. They are people just like you.”

I warmed to his compliment, and tried to smile away my fear and discomfort.

“The Scarlet Plague is Communism. It’s Scarlet because they call themselves Reds, and also that is the color of blood. And there’s blood everywhere with the Communists, of the people they kill, that they torture and they cripple. I know because I saw it myself—I saw it starting in Russia before we got out in 1924. But not only Russia, you know. It’s everywhere. It’s in America. It’s in Israel. Especially with intellectuals! If you’re not ready for it, you may get infected—so you have to understand.”

And he went on to lay out the most gripping, convincing, and altogether persuasive case against the Communists and their lies and their cruelty and they insatiable lust for power and destruction. More than a decade later, when I first read Solzhenitsyn’s epochal (and then brand new) Gulag Archipelago, I thought of my Uncle Moish making the same sort of case, with equal passion, in that ritzy restaurant in Philadelphia. l tried to remember all the names and dates and stories he told me, but the underlying message emerged more clearly than any details. I knew something about “The Cold War” and the threat from the Soviet Union, but Moish made the danger feel far more immediate, insidious, almost supernatural.

“And when you tell your father that we had this talk—and you should tell him—he’ll just laugh and make fun of me. He’d tell you not to worry. He thinks because the Reds never infected him that there’s nothing to worry about. He’s too relaxed about everything! Because he doesn’t know the way they’re going to go after you— I know they will!—and they’re going to go after millions and millions of other people in your generation. Your father doesn’t take it seriously but I need you to take it seriously. I need you to be prepared. You’re In the Boy Scouts, right? ‘Be prepared’ is the motto! Be ready to fight back against the Scarlet Plague!”

It all seemed impossibly heavy and melodramatic, as if Moish worried that my mostly Republican, middle-class San Diego world had already been infested with active cells of preteen Commie agents. Nevertheless, I promised to heed his lecture and to keep his pleas in mind in the years ahead.

And amazingly enough, I did. Less than six years after the diatribe, I was surrounded in college by honest-to-goodness leftist lunatics, and in trying to deal with the psychos from the SDS (Students for a Democratic Society), I thought repeatedly of my uncle’s warnings about the Scarlet Plague… I’d like to believe that I would have rejected extremist temptations even without my uncle’s warnings, but as I made progress in my political journey, his unforgettable harangue seemed more and more prescient, even profound.

I read the book about 15 years ago and the story stuck with me.

Michael Medved is a very successful talk show host. He reaches a wide audience, including a lot of religious and secular Jews with his conservative message. And he promotes  scholars who work on intelligent design in science, like Dr. Stephen C. Meyer. What a huge difference his Uncle made. He knew the importance of winning a person using ALL the tools that you have available. You can’t rely on daycare, public schools, celebrities, athletes and artists to communicate important truths to young people. You must do it. And if you have something important to say, then spend your time and money and effort making sure you are heard.