Category Archives: Polemics

Polemics

Alexander Vilenkin: “All the evidence we have says that the universe had a beginning”

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I’ve decided to explain why physicists believe that there was a creation event in this post. That is to say, I’ve decided to let famous cosmologist Alexander Vilenkin do it.

From Uncommon Descent.

Excerpt:

Did the cosmos have a beginning? The Big Bang theory seems to suggest it did, but in recent decades, cosmologists have concocted elaborate theories – for example, an eternally inflating universe or a cyclic universe – which claim to avoid the need for a beginning of the cosmos. Now it appears that the universe really had a beginning after all, even if it wasn’t necessarily the Big Bang.

At a meeting of scientists – titled “State of the Universe” – convened last week at Cambridge University to honor Stephen Hawking’s 70th birthday, cosmologist Alexander Vilenkin of Tufts University in Boston presented evidence that the universe is not eternal after all, leaving scientists at a loss to explain how the cosmos got started without a supernatural creator. The meeting was reported in New Scientist magazine (Why physicists can’t avoid a creation event, 11 January 2012).

[…]In his presentation, Professor Vilenkin discussed three theories which claim to avoid the need for a beginning of the cosmos.

The three theories are chaotic inflationary model, the oscillating model and quantum gravity model. Regular readers will know that those have all been addressed in William Lane Craig’s peer-reviewed paper that evaluates alternatives to the standard Big Bang cosmology.

But let’s see what Vilenkin said.

More:

One popular theory is eternal inflation. Most readers will be familiar with the theory of inflation, which says that the universe increased in volume by a factor of at least 10^78 in its very early stages (from 10^−36 seconds after the Big Bang to sometime between 10^−33 and 10^−32 seconds), before settling into the slower rate of expansion that we see today. The theory of eternal inflation goes further, and holds that the universe is constantly giving birth to smaller “bubble” universes within an ever-expanding multiverse. Each bubble universe undergoes its own initial period of inflation. In some versions of the theory, the bubbles go both backwards and forwards in time, allowing the possibility of an infinite past. Trouble is, the value of one particular cosmic parameter rules out that possibility:

But in 2003, a team including Vilenkin and Guth considered what eternal inflation would mean for the Hubble constant, which describes mathematically the expansion of the universe. They found that the equations didn’t work (Physical Review Letters, DOI: 10.1103/physrevlett.90.151301). “You can’t construct a space-time with this property,” says Vilenkin. It turns out that the constant has a lower limit that prevents inflation in both time directions. “It can’t possibly be eternal in the past,” says Vilenkin. “There must be some kind of boundary.”

A second option explored by Vilenkin was that of a cyclic universe, where the universe goes through an infinite series of big bangs and crunches, with no specific beginning. It was even claimed that a cyclic universe could explain the low observed value of the cosmological constant. But as Vilenkin found, there’s a problem if you look at the disorder in the universe:

Disorder increases with time. So following each cycle, the universe must get more and more disordered. But if there has already been an infinite number of cycles, the universe we inhabit now should be in a state of maximum disorder. Such a universe would be uniformly lukewarm and featureless, and definitely lacking such complicated beings as stars, planets and physicists – nothing like the one we see around us.

One way around that is to propose that the universe just gets bigger with every cycle. Then the amount of disorder per volume doesn’t increase, so needn’t reach the maximum. But Vilenkin found that this scenario falls prey to the same mathematical argument as eternal inflation: if your universe keeps getting bigger, it must have started somewhere.

However, Vilenkin’s options were not exhausted yet. There was another possibility: that the universe had sprung from an eternal cosmic egg:

Vilenkin’s final strike is an attack on a third, lesser-known proposal that the cosmos existed eternally in a static state called the cosmic egg. This finally “cracked” to create the big bang, leading to the expanding universe we see today. Late last year Vilenkin and graduate student Audrey Mithani showed that the egg could not have existed forever after all, as quantum instabilities would force it to collapse after a finite amount of time (arxiv.org/abs/1110.4096). If it cracked instead, leading to the big bang, then this must have happened before it collapsed – and therefore also after a finite amount of time.

“This is also not a good candidate for a beginningless universe,” Vilenkin concludes.

So at the end of the day, what is Vilenkin’s verdict?

“All the evidence we have says that the universe had a beginning.”

This is consistent with the Borde-Guth-Vilenkin Theorem, which I blogged about before, and which William Lane Craig leveraged to his advantage in his debate with Peter Millican.

The Borde-Guth-Vilenkin (BGV) proof shows that every universe that expands must have a space-time boundary in the past. That means that no expanding universe, no matter what the model, can be eternal into the past. No one denies the expansion of space in our universe, and so we are left with a cosmic beginning. Even speculative alternative cosmologies do not escape the need for a beginning.

Conclusion

If the universe came into being out of nothing, which seems to be the case from science, then the universe has a cause. Things do not pop into being, uncaused, out of nothing. The cause of the universe must be transcendent and supernatural. It must be uncaused, because there cannot be an infinite regress of causes. It must be eternal, because it created time. It must be non-physical, because it created space. There are only two possibilities for such a cause. It could be an abstract object or an agent. Abstract objects cannot cause effects. Therefore, the cause is an agent.

Now, let’s have a discussion about this science in our churches, and see if we can’t train Christians to engage with non-Christians about the evidence so that everyone accepts what science tells us about the origin of the universe.

Polemics

What do skeptical ancient historians think of the earliest Christian creed?

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Sherlock Holmes and John Watson
Sherlock Holmes and Dr. John Watson solving a mystery

Here is a post from my friend Eric Chabot. He writes about the earliest historical source for the minimal facts about the resurrection, which is the early creed recorded by Paul in 1 Corinthians: 3-7.

1 Cor 15:3-7:

3 For what I received I passed on to you as of first importance: that Christ died for our sins according to the Scriptures,

4 that he was buried, that he was raised on the third day according to the Scriptures,

5 and that he appeared to Cephas, and then to the Twelve.

6 After that, he appeared to more than five hundred of the brothers and sisters at the same time, most of whom are still living, though some have fallen asleep.

7 Then he appeared to James, then to all the apostles,

8 and last of all he appeared to me also, as to one abnormally born.

Just in case you didn’t know, Cephas is Peter, one of Jesus’ closest followers.

The general consensus among scholars is the that creed goes back to within 1-3 years after the death if Jesus, when almost all the eyewitnesses were still around.

The creed

In Eric’s post, he quotes very well-known skeptical historians who affirm each part of the creed.

First, the creed as a whole is respected, even by atheist scholars like John Dominic Crossan:

Paul wrote to the Corinthians from Ephesus in the early 50s C.E. But he says in 1 Corinthians 15:3 that “I handed on to you as of first importance which I in turn received.” The most likely source and time for his reception of that tradition would have been Jerusalem in the early 30s when, according to Galatians 1:18, he “went up to Jerusalem to visit Cephas [Peter] and stayed with him fifteen days” (3).

And atheist scholar Robert Funk:

The conviction that Jesus had risen from the dead had already taken root by the time Paul was converted about 33 C.E. On the assumption that Jesus died about 30 C.E., the time for development was thus two or three years at most.” — Robert Funk co-founder of the Jesus Seminar.(5)

Let’s take a look at one of the parts of the creed that is respected by skeptical historians… namely, the early belief that Jesus was resurrected shortly after his death.

The early belief in the resurrection

Skeptical scholar E.P. Sanders:

That Jesus’ followers (and later Paul) had resurrection experiences is, in my judgment, a fact. What the reality was that gave rise to the experiences I do not know. “I do not regard deliberate fraud as a worthwhile explanation. Many of the people in these lists were to spend the rest of their lives proclaiming that they had seen the risen Lord, and several of them would die for their cause. Moreover, a calculated deception should have produced great unanimity. Instead, there seem to have been competitors: ‘I saw him first!’ ‘No! I did.’ Paul’s tradition that 500 people saw Jesus at the same time has led some people to suggest that Jesus’ followers suffered mass hysteria. But mass hysteria does not explain the other traditions.” “Finally we know that after his death his followers experienced what they described as the ‘resurrection’: the appearance of a living but transformed person who had actually died. They believed this, they lived it, and they died for it. (14)

Skeptical scholar Bart Ehrman:

Historians, of course, have no difficulty whatsoever speaking about the belief in Jesus’ resurrection, since this is a matter of public record. (17)

Why, then, did some of the disciples claim to see Jesus alive after his crucifixion? I don’t doubt at all that some disciples claimed this. We don’t have any of their written testimony, but Paul, writing about twenty-five years later, indicates that this is what they claimed, and I don’t think he is making it up. And he knew are least a couple of them, whom he met just three years after the event (Galatians 1:18-19). (18)

You know, if all you did was give someone his post, I think that would be enough to show people that a more complete investigation of the historical Jesus was certainly a reasonable thing to do. It’s amazing to me that people who grow up at this time when access to the data is so easy do not take the opportunity to look into Christianity.

List of virtually undeniable facts

Finally, below is a list of facts about the historical Jesus that are accepted by ancient historians – Christian, non-Christian, atheist.

These are compiled by non-Christian scholar E.P. Sanders:

From his book “Jesus and Judaism” (1985):

  • Jesus was baptized by John the Baptist.
  • Jesus called disciples and spoke of there being twelve.
  • Jesus confined his activity to Israel.
  • Jesus was a Galilean who preached and healed.
  • Jesus engaged in a controversy about the temple.
  • Jesus was crucified outside Jerusalem by the Roman authorities.
  • After his death, his followers continued as an identifiable movement.
  • At least some Jews persecuted at least parts of the new movement.

From his book “The Historical Figure of Jesus” (1993):

  • Jesus was born c.4 BCE, near the time of the death of Herod the Great;
  • He spent his childhood and early adult years in Nazareth, a Galilean village;
  • He was baptized by John the Baptist;
  • He called disciples;
  • He taught in the towns, villages, and countryside of Galilee (apparently not the cities);
  • He preached “the kingdom of God”;
  • Around the year 30 he went to Jerusalem for Passover;
  • He created a disturbance in the temple area;
  • He had a final meal with the disciples;
  • He was arrested and interrogated by Jewish authorities, specifically the high priest;
  • He was executed on the orders of the Roman prefect, Pontius Pilate;
  • His disciples at first fled;
  • They saw him (in what sense is uncertain) after his death;
  • As a consequence they believed he would return to found the kingdom;
  • They formed a community to await his return and sought to win others to faith in him as God’s Messiah.

The way the resurrection of Jesus is presented on TV, you would think that mythical stories about Jesus emerged decades and even centuries after the fact in other parts of the world from where the events happened. But the trouble is that no ancient historian thinks that. Only Hollywood TV producers and movie makers think that. Now, if you are getting your view of the historical accuracy of basic Christian beliefs from television and movies, then don’t be surprised if you are wrong. No one is saying that you have to go to Christian pastors and preachers for the facts, but you should go to the historians. They at least know the minimal facts.

The best way for a skeptic to tackle these issues is, I think, to watch a decent debate on the resurrection of Jesus between two respected scholars. My favorite debate on the resurrection is William Lane Craig versus atheist historian James Crossley. I have a video and a summary already ready made just waiting for you to check it out. Don’t worry, no one will be looking over your shoulder making you change everything your life should you be convinced. Just watch the debate and decide what you are going to do with it on your own. You don’t have to change your whole life overnight. Becoming a Christian is instantaneous and easy to do. Living like a Christian is a process, and it’s between you and God how fast you go. So just see what the facts are to start with and then take it from there.

Polemics

John C. Sanford’s genetic entropy hypothesis

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Apologetics and the progress of science
Apologetics and the progress of science

JoeCoder sent me a recent peer-reviewed paper by John C. Sanford, so I’ve been trying to find something written by him at a layman’s level so I could understand what he is talking about. (I am just a software engineer, not an expert in genetics). His CV is posted at the Cornell University web page.

I found this 20-minute video of an interview with him, in which he explains his thesis:

The most important part of that video is Sanford’s assertion that natural selection cannot remove deleterious mutations from a population faster than they arrive.

And I also found a review of a book that he wrote that explains his ideas at the layman level.

It says:

Dr. John Sanford is a plant geneticist and inventor who conducted research at Cornell University for more than 25 years. He is best known for significant contributions to the field of transgenic crops, including the invention of the biolistic process (“gene gun”).

[…]Sanford argues that, based upon modern scientific evidence and the calculations of population geneticists (who are almost exclusively evolutionists), mutations are occurring at an alarmingly high rate in our genome and that the vast majority of all mutations are either harmful or “nearly-neutral” (meaning a loss for the organism or having no discernible fitness gain). Importantly, Sanford also establishes the extreme rarity of any type of beneficial mutations in comparison with harmful or “nearly-neutral” mutations. Indeed, “beneficial” mutations are so exceedingly rare as to not contribute in any meaningful way. [NOTE: “Beneficial” mutations do not necessarily result from a gain in information, but instead, these changes predominantly involve a net loss of function to the organism, which is also not helpful to [Darwinism]; see Behe, 2010, pp. 419-445.] Sanford concludes that the frequency and generally harmful or neutral nature of mutations prevents them from being useful to any scheme of random evolution.

[…]In the next section of the book, Sanford examines natural selection and asks whether “nature” can “select” in favor of the exceedingly rare “beneficial” mutations and against the deleterious mutations. The concept of natural selection is generally that the organisms that are best adapted to their environment will survive and reproduce, while the less fit will not. Sanford points out that this may be the case with some organisms, but more commonly, selection involves chance and luck. But could this process select against harmful mutations and allow less harmful or even beneficial mutations to thrive? According to Sanford, there are significant challenges to this notion.

Stanford is a co-author of an academic book on these issues that has Dembski and Behe as co-authors.

Now, I do have to post something more complicated about this, which you can skip – it’s an abstract of a paper he co-authored from that book:

Most deleterious mutations have very slight effects on total fitness, and it has become clear that below a certain fitness effect threshold, such low-impact mutations fail to respond to natural selection. The existence of such a selection threshold suggests that many low-impact deleterious mutations should accumulate continuously, resulting in relentless erosion of genetic information. In this paper, we use numerical simulation to examine this problem of selection threshold.

The objective of this research was to investigate the effect of various biological factors individually and jointly on mutation accumulation in a model human population. For this purpose, we used a recently-developed, biologically-realistic numerical simulation program, Mendel’s Accountant. This program introduces new mutations into the population every generation and tracks each mutation through the processes of recombination, gamete formation, mating, and transmission to the new offspring. This method tracks which individuals survive to reproduce after selection, and records the transmission of each surviving mutation every generation. This allows a detailed mechanistic accounting of each mutation that enters and leaves the population over the course of many generations. We term this type of analysis genetic accounting.

Across all reasonable parameters settings, we observed that high impact mutations were selected away with very high efficiency, while very low impact mutations accumulated just as if there was no selection operating. There was always a large transitional zone, wherein mutations with intermediate fitness effects accumulated continuously, but at a lower rate than would occur in the absence of selection. To characterize the accumulation of mutations of different fitness effect we developed a new statistic, selection threshold (STd), which is an empirically determined value for a given population. A population’s selection threshold is defined as that fitness effect wherein deleterious mutations are accumulating at exactly half the rate expected in the absence of selection. This threshold is mid-way between entirely selectable, and entirely unselectable, mutation effects.

Our investigations reveal that under a very wide range of parameter values, selection thresholds for deleterious mutations are surprisingly high. Our analyses of the selection threshold problem indicate that given even modest levels of noise affecting either the genotype-phenotype relationship or the genotypic fitness-survival-reproduction relationship, accumulation of low-impact mutations continually degrades fitness, and this degradation is far more serious than has been previously acknowledged. Simulations based on recently published values for mutation rate and effect-distribution in humans show a steady decline in fitness that is not even halted by extremely intense selection pressure (12 offspring per female, 10 selectively removed). Indeed, we find that under most realistic circumstances, the large majority of harmful mutations are essentially unaffected by natural selection and continue to accumulate unhindered. This finding has major theoretical implications and raises the question, “What mechanism can preserve the many low-impact nucleotide positions that constitute most of the information within a genome?”

If you think all this is interesting, there is a much longer lecture here, which I have not watched. JoeCoder has watched it and he endorses it.

Now I have been told by JoeCoder that there are many critical responses to his hypothesis, most of which have to do with whether natural selection can overcome the difficulty he is laying out. But since this is not my area of expertise, there is not much I can say to adjudicate here, I won’t be able to respond to these. I hope that I will have time to come back to this and read about it at some point. I do have an e-book of the that collection of papers book I linked to above.

Positive arguments for Christian theism