News

520 million year old shrimp heart is more complex than those of today

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First, the straight story on the scientific discovery, as reported in Bioscience Technology.

Excerpt:

520 million years ago, the first known animal heart was formed.

It was the heart of an ancient shrimp, and quite a heart it was. For it, and its vascular system, have been found to be more complex than that of modern shrimp, researchers reported in a recent Nature Communications. Its cardiovascular system was apparently one of evolution’s first templates for modern cardiovascular systems. Significant streamlining has occurred since.

The find comes on the heels of an equally important one by the same group: that of a stunningly intact nervous system from the same breed of primordial shrimp: Fuxianhuia protensa.

“This is only the second case of the description of a cardiovascular system in a Cambrian arthropod, the first one being that of the inch-long Marrella from Burgess Shale,” emailed Diego Garcia-Bellido of the University of Adelaide, who co-discovered that first arthropod while at the University of Cambridge. Garcia-Bellido was not involved in the new study. “This new finding of a cardiovascular system in a larger animal (Fuxianhuia is about two to three times as large, thus more detail), together with a fantastically preserved, and very complex, nervous system, unknown in Marrella, and the gut, make it probably the most complete arthropod internal anatomy known in the fossil record.”

The main conclusion drawn, said Garcia-Bellido: “The level of complexity of the Fuxianhuia was extremely high, considering that we are studying some of the oldest animals on Earth.”

Now, if you’re like me, you’re skeptical that soft tissues can be preserved in the fossil record, but:

Said the paleontologist via email: “As we know, most soft tissue of animals tends to decay away once the animals died, so often only the hard parts of animal body (bones, shells, teeth, etc.) are preserved in fossils. However, under very exceptional circumstances, soft tissue and anatomical organ system can also be preserved in fossils.”

Keep in mind that 520 mya is right after the Cambrian explosion that intelligent design people like me love to talk about. I mean you are going from single-celled life to complex organ types in a few million years. Fine if you are an ID proponent, but devastating if you are a Darwinian naturalist.

Cambrian Explosion
The Cambrian Explosion: the origin of phyla

If you are a naturalist, then you need the fossil record to go from simple to complex. The trouble is that all the simple to complex in that image is pure speculation at this point – and not for lack of trying, either.

You know, I am writing this on Saturday night, and in a happier world, this discovery would be discussed tomorrow in every Christian church in the land. This is the kind of data that Christians should be familiar with to check the presupposition of naturalism which is lethal to rational thought. If only we were more focused on truth than on signing and feelings in church. If only we were not so scared of traditional dating of fossils. Maybe then we would be getting somewhere in the culture wars.

Polemics

Can a person be a committed Christian while ignoring apologetics?

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I would like to describe a situation that arises frequently that concerns me. The situation I describe below brings out a flaw I see in the way that rank-and-file Christians respond to criticisms of Christianity in the public square.

Here is the situation

Eve is busy programming away at her desk, rushing to check in her unit tests so she can spend her lunch hour reading the latest Stephenie Meyer novel, or check on the schedule for her local sports team, “the Vicariouses” (she has tickets for Thursday). Suddenly Eve hears Alice talking to Bob on the other side of her cubicle. She stops typing to listen to the following unencrypted conversation.

Alice: I was watching a documentary on the Discovery Channel last night that said that the universe has always existed, so there is no God!

Bob: I was watching a documentary on PBS last night showing simulations of how the first life started on Earth! God didn’t do it!

Alice: I saw “Inherit the Spin” on the weekend! The only reason people oppose evolution is because of the Bible! Not because of science!

Bob: I’m going to see “The Va Dinci Code” this weekend! It says that the Gospels are unreliable and that Jesus didn’t even die on the cross!

Alice: I just bought the latest Dichard Rawkins book “Christians Should Be Fed to Lions and the Bible Should Be Burned”!

Bob: I will read that as soon as I finish Histopher Chritchens’ book “Why God is the Evilest, Stupidest Person in the World”!

Eve double-majored in business and computer science at the Indian Institute of Technology, and has an MBA from the London School of Economics. She has spent a ton of time, effort and money studying very difficult subjects for her job, and she even publishes research papers. She works full-time and runs her own business part-time, and teaches night classes for a well-known university. She earns about 200K per year. She lives in a huge house, drives an expensive car, and goes on vacation abroad to all the best vacation spots.

Eve thinks she is a Christian. She has attended church since childhood, her husband is a church elder and she sings in the church choir. She reads the Bible and prays every night, because it helps her to get sleepy before bed. She gives lots of money to the poor. She teaches Sunday school to very small children.  She has even read all of the Narnia novels five times! She even has a calendar filled with nature scenes and itsy-bitsy, teeny-weeny Bible verses posted on her office wall at work! Judging from all of these facts, you might expect Eve to get in on that conversation with Alice and Bob, and set them straight.

But she won’t. Why not?

Why won’t Eve stand?

I am wondering if anyone can explain to me why it is that most church Christians are not able or not willing to make a public defense when God’s reputation is called into question. It seems to me that there are two bad effects that follow from Eve’s unwillingness to stand up and invite Alice and Bob to lunch so that she can address their questions and concerns.

  1. God’s reputation is being trashed by Alice and Bob on the basis of lies they’ve swallowed from pop culture. These lies about God’s existence and character could be easily corrected with a minimal amount of study, which Eve is capable of – she is a genius and has amazing entrepreneurial skills.  If someone said similar lies about her husband or children, she would speak up, but she won’t speak up for God.
  2. Alice and Bob are bound for Hell unless someone cares enough to correct their mistaken beliefs, which, along with their sinfulness, is what is keeping them from a relationship with God that would go on in Heaven. If Eve’s husband or children were mistakenly about to drink poison thinking it was Aspirin, then Eve would speak up. But to save her co-workers from Hell, she won’t speak up.

Eve is capable of studying to defend the faith, because of her great success in other areas where so much time and effort were required to master difficult material. So why has she not applied herself to answering public challenges to her Christian faith from her professors, teachers, actors, the media, politicians, scientists, historians, etc.? She’s heard these questions about God’s existence and character all through high school and into university and then now in her career. Doesn’t she believe the Bible when it says to prepare a defense? Doesn’t she believe the Bible when it says to acknowledge God before men? Doesn’t she believe the Bible when it says that all authentic believers in Jesus will suffer a little for their faith?

It seems to me that if she did spend some time studying, and then made her defense to her co-workers, then two good things would follow:

  1. Eve would be demonstrating her love for God and her friendship with God by protecting his reputation when it is called into question by unbelievers in public settings. That’s what friends do – if Eve wanted to be God’s friend, she would care that no one believed lies about him and told lies about him in public settings.
  2. Eve would be demonstrating her love for her neighbor if she was able to correct some of these false beliefs, such as that the universe is eternal, or that a historical case cannot be made for the resurrection, or that evil is not compatible with theism. It’s important for Alice and Bob to know that Christianity is not stupid.

So why is it that Eve is able to go to church for 20 years, sing in the choir, read the Bible, read the Narnia stories, pray on her knees, and yet still be unwilling to do the best thing for God and the best thing for her neighbor?

Questions for my readers

Can anyone help me to understand why Christians are willing to accept this? Why is this not being addressed by churches?

Do you have an experience where a Christian group stifled apologetics? Tell me about that, and why do you think they would do that, in view of the situation I outlined above? My experience is that atheists (as much as I tease them) are FAR more interested in apologetics than church Christians – they are the ones who borrow books and debates, and try to get their atheist wives to go to church after they becomes interested in going to church. Why is that?

I’m not saying we all have to be geniuses. I am just saying that we should put as much effort into learning apologetics as we put into learning school stuff and work stuff.

Note: I picked these names because there is a running gag in computer network security where these names are used to describe the actors. Eve is the eavesdropping hacker, get it?

 

Podcasts

Marrying a non-Christian: does the Bible allow it?

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I think that the best way to answer the question, “should I marry a non-Christian?”, is to ask whether it makes any difference if your spouse is on board with your plans for your ministry and with your marriage. So let’s take a look at a case where someone famous who chose a Christian wife, and we’ll see how much that decision affected his ministry and his marriage.

I want to draw your attention to a talk on “Vision in Life” given by Dr. William Lane Craig. Dr. Craig is the ablest defender of the Christian faith operating today. He has done formal academic debates with all of the best known atheists on major university campuses in front of thousands of university students. This list of atheists and agnostics includes people like Christopher Hitchens and Victor Stenger. The Hitchens debate took place in an auditorium filled with 5000 students, and many thousands more were watching at churches all over the world. How did Dr. Craig get these opportunities to evangelize on secular university campuses?

Well, he owes a lot of his success to his amazing wife Jan, as we shall see in the summary of his talk on that topic.

The MP3 file is here. (32 minutes)

This talk was Dr. Craig’s chapel address to Biola University students, and he is introduced by his son, John, a Biola University grad.

In the talk, it becomes clear that Bill’s wife Jan plays an enormous role in his success. Indeed, you will see that if it were not for her, he never would have gotten either of his doctorates, or even his second Masters degree. Why was she so supportive of his plans? Because she had the same broad goal of evangelism through scholarship. Let’s see how she encouraged him.

Here is a quotation that occurs about 11 minutes into the talk, as Bill describes the completion of his Bachelor’s degree at Wheaton:

And it was at Wheaton that my vision began to focus on presenting the gospel in the context of giving an intellectual defense of the faith, to appeal not only to the heart but also to the head, as well. And so I determined that I would go on to seminary for further training.

But, my senior year, in chapel, we heard a speaker who challenged us, before going on to further education, to take a couple of years out, and to wring out the sponge, so to speak, that had been soaking up all that knowledge, and to work with university students while we were still about the same age.

And so I joined the staff of Campus Crusade for Christ for 2 years, and was assigned to Northern Illinois University. And that was where I met my wife Jan. She was a graduate of the University of North Dakota where she had come to faith in Christ. And she had a similar vision for her life of evangelism and discipleship.

And as we worked at NIU together, she with gals and I with the guys, leading students to Christ and discipling them to walk with the Lord, we fell in love. And we decided that we would be more effective if we joined forces and became a team.

It is at this point in the talk where Bill begins to explain just how Jan molded him into the lean, mean debating machine that travels the world striking terror into the hearts of atheists.

Bill’s first story about Jan occurs early after their marriage while he is working on his first Masters degree at Trinity:

And it was also at that time that I began to see what an invaluable asset the Lord had given me in Jan. I remember I came home from classes one day, and found her at the kitchen table with all the catalogs and schedules and papers spread out in front of her and she said, “look! I’ve figured out how you can get two Masters degrees at the same time that it would normally take to get one! All you have to do is take overloads every semester, go to all full-time summer school and do all these other things, and you can do two MAs in the time it takes to do one!”

And I thought, whoa! Are you sure you really want to make the commitment it takes to do this kind of thing? And she said, “Yeah! Go for it!” And it was then I began to see that God had given me a very special woman who was my supporter – my cheerleader – and who really believed in me. And as long as she believed in me, that gave me the confidence to dream bigger dreams, and to take on challenges that I had never thought of before.

In an article on his web site, he talks about how Jan encouraged him to do his first Ph.D:

As graduation from Trinity neared, Jan and I were sitting one evening at the supper table in our little campus apartment, talking about what to do after graduation. Neither of us had any clear leading or inclination of what we should do next.

So Jan said to me, “Well, if money were no object, what would you really like to do next?”

I replied, “If money were no object, what I’d really like to do is go to England and do a doctorate under John Hick.”

“Who’s he?” she asked.

“Oh, he’s this famous British philosopher who’s written extensively on arguments for the existence of God,” I explained. “If I could study with him, I could develop a cosmological argument for God’s existence.”

But it hardly seemed a realistic idea.

The next evening at supper Jan handed me a slip of paper with John Hick’s address on it. “I went to the library today and found out that he’s at the University of Birmingham in England,” she said. “Why don’t you write him a letter and ask him if you can do a doctoral thesis under him on the cosmological argument?”

What a woman! So I did, and to our amazement and delight Professor Hick wrote back saying he’d be very pleased to supervise my doctoral work on that subject. So it was an open door!

And in the same article, he explains how Jan encouraged him to get his second Ph.D:

As Jan and I neared the completion of my doctoral studies in Birmingham, our future path was again unclear to us. I had sent out a number of applications for teaching positions in philosophy at American universities but had received no bites. We didn’t know what to do.

I remember it like yesterday. We were sitting at the supper table in our little house outside Birmingham, and Jan suddenly said to me, “Well, if money were no object, what would you really like to do next?”

I laughed because I remembered how the Lord had used her question to guide us in the past. I had no trouble answering the question. “If money were no object, what I’d really like to do is go to Germany and study under Wolfhart Pannenberg.”

“Who’s he?”

“Oh, he’s this famous German theologian who’s defended the resurrection of Christ historically,” I explained. “If I could study with him, I could develop a historical apologetic for the resurrection of Jesus.”

Our conversation drifted to other subjects, but Jan later told me that my remark had just lit a fire under her. The next day while I was at the university, she slipped away to the library and began to research grants-in-aid for study at German universities. Most of the leads proved to be defunct or otherwise inapplicable to our situation. But there were two grants she found that were possibilities. You can imagine how surprised I was when she sprung them on me!

Both of these Ph.D experiences are also described in the talk. And the talk concludes as follows:

I am so thankful to be married to a woman who is tremendously resourceful, tremendously talented and energetic, who could have pursued an independent career in any number of areas, but instead, she has chose to wed her aspirations to mine, and to make it her goal to make me the most effective person I can be, for Christ. And she has been like my right arm in ministry over these many years. And it is a tremendous privilege to be a team with a person like that.

And you young men, I would encourage you, if you marry, to find a gal who shares your vision, not some independent vision, but who is interested in aligning herself with you, and pursuing together a common vision and goal that will draw you [together], so that you will avoid the growing separateness that so often creeps into marriages.

And now you know the rest of Bill’s story. The person you marry will have an enormous influence on the impact you will have for Christ and his Kingdom. It is up to you to decide whether that influence is going to be positive or negative, by deciding if you will marry, and if you do marry, by deciding whom you will marry. If you marry a non-Christian, you cannot expect to achieve the same things for God as you can with someone who accepts your core convictions and is willing to sacrifice their happiness so that God can be made happier.

You may also be interested in this talk given by William Lane Craig, entitled “Healthy Relationships” (National Faculty Leadership Conf. 2008) (audio here) In that talk, he offers advice to Christians who want to have a marriage that is consistent with their Christian faith.