Tag Archives: William Lane Craig

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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.

Videos

William Lane Craig lectures on the evidence for the resurrection of Jesus

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Here is Dr. William Lane Craig giving a long-form argument for the historical event of the resurrection of Jesus, and taking questions from the audience.

The speaker introduction goes for 6 minutes, then Dr. Craig speaks for 35 minutes, then it’s a period of questions and answers with the audience. The total length is 93 minutes, so quite a long period of Q&A. The questions in the Q&A period are quite good.

Introduction:

  • Many people who are willing to accept God’s existence are not willing to accept the God of Christianity
  • Christians need to be ready to show that Jesus rose from the dead as a historical event
  • Private faith is fine for individuals, but when dealing with the public you have to have evidence
  • When making the case, you cannot assume that your audience accepts the Bible as inerrant
  • You must use the New Testament like any other ancient historical document
  • Most historians, Christian and not, accept the basic minimal facts supporting the resurrection of Jesus

Fact #1: the burial of Jesus following his crucifixion

  • Fact #1 is supported by the early creed found in Paul’s first letter to the Corinthians (1 Cor 15)
  • Fact #1 is supported by the early Passion narrative which was a source for Mark’s gospel
  • Fact #1 passes the criterion of enemy attestation, since it praises one of the Sanhedrin
  • Fact #1 is not opposed by any competing burial narratives

Fact #2: on the Sunday following his crucifixion, Jesus’ tomb was found empty by some women

  • Fact #2 is supported by the early Passion narrative which was a source for Mark’s gospel
  • Fact #2 is implied by the early creed found in Paul’s first letter to the Corinthians (1 Cor 15)
  • Fact #2 is simple and lacks legendary embellishment, which argues for an early dating
  • Fact #2 passes the criterion of embarrassment, because it has female, not male, witnesses
  • Fact #2 passes the criterion of enemy attestation, since it is reported by the Jewish leaders

Fact #3: Jesus appeared to various people in various circumstances after his death

  • Fact #3 is supported by the early creed found in Paul’s first letter to the Corinthians (1 Cor 15)
  • Fact #3 is supported by multiple, independent reports of the events from all four gospels
  • Fact #3 explains other historical facts, like the conversion of Jesus’ skeptical brother James

Fact #4: the earliest Christians proclaimed their belief in the resurrection of Jesus

  • Fact #4 explains why the earliest Christians continued to identify Jesus as the Messiah
  • Fact #4 explains why the earliest Christians were suddenly so unconcerned about being killed

Dr. Craig then asks which hypothesis explains all four of these facts. He surveys a number of naturalistic hypotheses, such as the hallucination theory or various conspiracy theories. All of these theories deny one or more of the minimal facts that have been established and accepted by the broad spectrum of historians. In order to reject the resurrection hypothesis, a skeptic would have to deny one of the four facts or propose an explanation that explains those facts better than the resurrection hypothesis.

I listened to the Q&A period while doing housekeeping and I heard lots of good questions. Dr. Craig gives very long answers to the questions. One person asked why we should trust the claim that the Jewish leaders really did say that the disciples stole the body. Another one asked why we should take the resurrection as proof that Jesus was divine. Another asks about the earthquake in Matthew, which Mike Licona and I doubt is intended to be historical, but is more likely to be apocalyptic imagery. Dr. Craig is also asked about the Jewish scholar Geza Vermes, and how many of the minimal facts he accepts. Another questioner asked about the ascension.

You can see this evidence used in an actual debate, against a historian who disagrees with Dr. Craig. That post contains a point by point summary of the debate that I wrote while listening to it.

If you are looking for a good book to read on this topic, the best introductory book on the resurrection is “The Case for the Resurrection of Jesus” and the best comprehensive book is “The Resurrection of Jesus“.

News

What criteria do historians use to get to the minimal facts about the historical Jesus?

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Have you ever heard Gary Habermas, Michael Licona or William Lane Craig defend the resurrection of Jesus in a debate by saying that the resurrection is the best explanation for the “minimal facts” about Jesus? The lists of minimal facts that they use are typically agreed to by their opponents during the debates. Minimal facts are the parts of the New Testament that meet a set of strict historical criteria. These are the facts that skeptical historians agree with, totally apart from any religious beliefs.

So what are the criteria that skeptical historians use to derive a list of minimal facts about Jesus?

Dr. Craig explains them in this article.

Excerpt:

The other way, more influential in contemporary New Testament scholarship, is to establish specific facts about Jesus without assuming the general reliability of the Gospels. The key here are the so-called “Criteria of Authenticity” which enable us to establish specific sayings or events in Jesus’ life as historical. Scholars involved in the quest of the historical Jesus have enunciated a number of these critieria for detecting historically authentic features of Jesus, such as dissimilarity to Christian teaching, multiple attestation, linguistic semitisms, traces of Palestinian milieu, retention of embarrassing material, coherence with other authentic material, and so forth.

It is somewhat misleading to call these “criteria,” for they aim at stating sufficient, not necessary, conditions of historicity. This is easy to see: suppose a saying is multiply attested and dissimilar but not embarrassing. If embarrassment were a necessary condition of authenticity, then the saying would have to be deemed inauthentic, which is wrong-headed, since its multiple attestation and dissimilarity are sufficient for authenticity. Of course, the criteria are defeasible, meaning that they are not infallible guides to authenticity. They might be better called “Indications of Authenticity” or “Signs of Credibility.”

In point of fact, what the criteria really amount to are statements about the effect of certain types of evidence upon the probability of various sayings or events in Jesus’ life. For some saying or event S and evidence of a certain type E, the criteria would state that, all things being equal, the probability of S given E is greater than the probability of S on our background knowledge alone. So, for example, all else being equal, the probability of some event or saying is greater given its multiple attestation than it would have been without it.

What are some of the factors that might serve the role of E in increasing the probability of some saying or event S? The following are some of the most important:

(1) Historical congruence: S fits in with known historical facts concerning the context in which S is said to have occurred.

(2) Independent, early attestation: S appears in multiple sources which are near to the time at which S is alleged to have occurred and which depend neither upon each other nor a common source.

(3) Embarrassment: S is awkward or counter-productive for the persons who serve as the source of information for S.

(4) Dissimilarity: S is unlike antecedent Jewish thought-forms and/or unlike subsequent Christian thought-forms.

(5) Semitisms: traces in the narrative of Aramaic or Hebrew linguistic forms.

(6) Coherence: S is consistent with already established facts about Jesus.

For a good discussion of these factors see Robert Stein, “The ‘Criteria’ for Authenticity,” in Gospel Perspectives I, ed. R. T. France and David Wenham (Sheffield, England: JSOT Press, 1980), pp. 225-63.

Notice that these “criteria” do not presuppose the general reliability of the Gospels. Rather they focus on a particular saying or event and give evidence for thinking that specific element of Jesus’ life to be historical, regardless of the general reliability of the document in which the particular saying or event is reported. These same “criteria” are thus applicable to reports of Jesus found in the apocryphal Gospels, or rabbinical writings, or even the Qur’an. Of course, if the Gospels can be shown to be generally reliable documents, so much the better! But the “criteria” do not depend on any such presupposition. They serve to help spot historical kernels even in the midst of historical chaff. Thus we need not concern ourselves with defending the Gospels’ every claim attributed to Jesus in the gospels; the question will be whether we can establish enough about Jesus to make faith in him reasonable.

And you can see Dr. Craig using these criteria to defend minimal facts in his debates. For example, in his debate with Ehrman, he alludes to the criteria when making his case for the empty tomb.

Here, he uses multiple attestation and the criteria of embarrassment:

Among the reasons which have led most scholars to this conclusion are the following:

1. The empty tomb is also multiply attested by independent, early sources.

Mark’s source didn’t end with the burial, but with the story of the empty tomb, which is tied to the burial story verbally and grammatically. Moreover, Matthew and John have independent sources about the empty tomb; it’s also mentioned in the sermons in the Acts of the Apostles (2.29; 13.36); and it’s implied by Paul in his first letter to the Corinthian church (I Cor. 15.4). Thus, we have again multiple, early, independent attestation of the fact of the empty tomb.

2. The tomb was discovered empty by women.

In patriarchal Jewish society the testimony of women was not highly regarded. In fact, the Jewish historian Josephus says that women weren’t even permitted to serve as witnesses in a Jewish court of law. Now in light of this fact, how remarkable it is that it is women who are the discoverers of Jesus’ empty tomb. Any later legendary account would certainly have made male disciples like Peter and John discover the empty tomb. The fact that it is women, rather than men, who are the discoverers of the empty tomb is best explained by the fact that they were the chief witnesses to the fact of the empty tomb, and the Gospel writers faithfully record what, for them, was an awkward and embarrassing fact.

There are actually a few more reasons for believing in the empty tomb that he doesn’t go into in the debate, but you can find them in his written work. For example, in his essay on Gerd Ludemann’s “vision” hypothesis. That essay covers the reasons for all four of his minimal facts.

So, if you are going to talk about the resurrection with a skeptic, you don’t want to invoke the Bible as some sort of inerrant/inspired Holy Book. You want to look at it as a historical book, and use historical criteria to get to some facts that critical historians would accept. From that, it’s possible to make a case for the resurrection, which is the guarantee that the words of Jesus are authoritative. Including the words of Jesus where he describes the Bible as a whole as God’s revelation of Himself to his creatures.

Here is the approach I use when talking to non-Christian co-workers:

  1. Explain the criteria that historians use to get their lists of minimal facts
  2. Explain your list of minimal facts
  3. Defend your list of minimal facts using the criteria
  4. Cite skeptics who admit to each of your minimal facts, to show that they are widely accepted
  5. List some parts of the Bible that don’t pass the criteria (e.g. – guard at the tomb, Matthew earthquake)
  6. Explain why those parts don’t pass the criteria, and explain that they are not part of your case
  7. Challenge your opponent to either deny some or all the facts, or propose a naturalistic alternative that explains the facts better than the resurrection
  8. Don’t let your opponent attack any of your minimal facts by attacking other parts of the Bible (e.g. – the number of angels being one or two, etc.)

And remember that there is no good case for the resurrection that does not make heavy use of the early creed in 1 Corinthians 15:3-8. That passages is universally accepted as early, eyewitness testimony from Paul, and represents the core of early Christian beliefs about the death and resurrection of Jesus. Everyone who takes evidence seriously has to account for that early creed, which passes the historical tests I outlined above.

The best essay on the minimal facts criteria that I’ve read is the one by Robert H. Stein in “Contending with Christianity’s Critics“. It’s a good short essay that goes over all the historical criteria that are used to derive the short list of facts from which we infer the conclusion “God raised Jesus from the dead”. That whole book is really very, very good.