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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.

Polemics

Is the Bible’s definition of faith opposed to logic and evidence?

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Probably the biggest misconception that I encounter when defending the faith is the mistaken notion of what faith is. Today we are going to get to the bottom of what the Bible says faith is, once and for all. This post will be useful to Christians and atheists, alike.

What is faith according to the Bible?

I am going to reference this article from apologist Greg Koukl of Stand to Reason in my explanation.

Koukl cites three Biblical examples to support the idea that faith is not blind leap-of-faith wishing, but is based on evidence.

  1. Moses went out into the wilderness and he had that first encounter with the burning bush, and God gave him the directive to go back to Egypt and let his people go. Moses said, Yeah, right. What’s going to happen when they say, why should we believe you, Moses?God said, See that staff? Throw it down.Moses threw it down and it turned into a serpent.God said, See that serpent? Pick it up.And he picked it up and it turned back into a staff.God said, Now you take that and do that before the Jewish people and you do that before Pharaoh. And you do this number with the hail, and the frogs, and turning the Nile River into blood. You put the sun out. You do a bunch of other tricks to get their attention.And then comes this phrase: “So that they might know that there is a God in Israel.”
  2. [I]n Mark 2 you see Jesus preaching in a house, and you know the story where they take the roof off and let the paralytic down through the roof. Jesus said, “Your sins are forgiven.” And people get bugged because how can anyone forgive sins but God alone?Jesus understood what they were thinking and He said this: What’s harder to say, your sins are forgiven, or to rise, take up your pallet and go home?Now, I’ll tell you what would be harder for me to say : Arise, take up your pallet and go home. I can walk into any Bible study and say your sins are forgiven and nobody is going to know if I know what I am talking about or not. But if I lay hands on somebody in a wheelchair and I say, Take up your wheelchair and go home, and they sit there, I look pretty dumb because everyone knows nothing happened.But Jesus adds this. He says, “In order that you may know that the Son of Man has the power and authority to forgive sins, I say to you, arise, take up your pallet and go home.” And he got up and he got out. Notice the phrase “In order that you may know”. Same message, right?
  3. Move over to the Book of Acts. First sermon after Pentecost. Peter was up in front of this massive crowd. He was talking about the resurrection to which he was an eyewitness. He talked about fulfilled prophecy. He talked about the miraculous tongues and the miraculous manifestation of being able to speak in a language you don’t know. Do you think this is physical evidence to those people? I think so. Pretty powerful.Peter tells them, These men are not drunk as it seems, but rather this is a fulfillment of prophecy. David spoke of this. Jesus got out of the grave, and we saw him, and we proclaim this to you.Do you know how he ends his sermon? It’s really great. Acts 2:36. I’ve been a Christian 20 years and I didn’t see this until about a year ago. This is for all of those who think that if you can know it for sure, you can’t exercise faith in it. Here is what Peter said. Acts 2:36, “Therefore let all the house of Israel know for certain that God has made him both Lord and Christ, Messiah, this Jesus whom you crucified.” There it is again. “Know for certain.”

What is faith according to Bible-based theologians?

I am going to reference this article from theologian C. Michael Patton of Parchment and Pen in my explanation.

Patton explains that according to Reformation (conservative, Bible-based) theologians, faith has 3 parts:

  1. notitia – This is the basic informational foundation of our faith. It is best expressed by the word content. Faith, according to the Reformers must have content. You cannot have faith in nothing. There must be some referential propositional truth to which the faith points. The proposition “Christ rose from the grave,” for example, is a necessary information base that Christians must have.
  2. assensus – This is the assent or confidence that we have that the notitia is correct… This involves evidence which leads to the conviction of the truthfulness of the proposition… This involves intellectual assent and persuasion based upon critical thought… assensus… says, “I am persuaded to believe that Christ rose from the grave.”
  3. fiducia – This is the “resting” in the information based upon a conviction of its truthfulness. Fiducia is best expressed by the English word “trust.”… Fiducia is the personal subjective act of the will to take the final step. It is important to note that while fiducia goes beyond or transcends the intellect, it is built upon its foundation.

So, Biblical faith is really trust. Trust(3) can only occur after intellectual assent(2), based on evidence and thought. Intellectual assent(2) can only occur after the propositional information(1) is known.

The church today accepts 1 and 3, but denies 2. I call this “fideism” or “blind faith”. Ironically, activist atheists, (the New Atheists), also believe that faith is blind. The postmodern “emergent church” denies 1 and 2. A person could accept 1 and 2 but deny 3 by not re-prioritizing their life based on what they know to be true.

How do beliefs form, according to Christian philosophers?

I am going to reference a portion of chapter 3 of J.P. Moreland’s “Love Your God With All Your Mind” (i.e. – LYGWYM).

J.P. Moreland explains how beliefs form and how you can change them.

  1. Today, people are inclined to think that the sincerity and fervency of one’s beliefs are more important than the content… Nothing could be further from the truth… As far as reality is concerned, what matters is not whether I like a belief or how sincere I am in believing it but whether or not the belief is true. I am responsible for what I believe and, I might add, for what I refuse to believe because the content of what I do or do not believe makes a tremendous difference to what I become and how I act.
  2. A belief’s strength is the degree to which you are convinced the belief is true. As you gain ,evidence and support for a belief, its strength grows for you… The more certain you are of a belief… the more you rely on it as a basis for action.

But the most important point of the article is that your beliefs are not under the control of your will.

…Scripture holds us responsible for our beliefs since it commands us to embrace certain beliefs and warns us of the consequences of accepting other beliefs. On the other hand, experience teaches us that we cannot choose or change our beliefs by direct effort.

For example, if someone offered you $10,000 to believe right now that a pink elephant was sitting next to you, you could not really choose to believe this… If I want to change my beliefs about something, I can embark on a course of study in which I choose to think regularly about certain things, read certain pieces of evidence and argument, and try to find problems with evidence raised against the belief in question.

…by choosing to undertake a course of study… I can put myself in a position to undergo a change in… my beliefs… And… my character and behavior… will be transformed by these belief changes.

I think definition of faith is important, because atheists seemed to want to substitute their own definition of faith as blind belief for this Biblical definition, but there is no evidence for their view that faith is belief without evidence. I think this might be another case of projection by atheists. Blind faith is how they arrive at their views, so they are trying to push it onto us. But the Bible is clearly opposed to it.

Positive arguments for Christian theism

Polemics

One man trusts his feelings, the other trusts facts: who remained a Christian?

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Alisa Childers posted a review of a recent dialog between Dr. Sean McDowell and former-Christian Bart Campolo, son of far-left progressive fake Christian Tony Campolo. The dialog occurred on the Unbelievable radio show.

Here’s an exerpt from Alisa’s review:

Recently, the two came together to have a discussion on Premier Christian Radio entitled, “Why Bart Lost His Faith, Why Sean Kept His.” It was a fascinating discussion, and the thing that most struck me was the reason they each gave for having become a Christian in the first place. Campolo described how he converted to Christianity after finding a youth group he connected with and attending one of their retreats:

There’s hundreds of kids there. It’s Saturday night, there’s candlelight and firelight and everybody’s singing “Our God is an Awesome God,” and “We Love You Lord.” And in the midst of that kind of environment I had what I guess you would call a transcendent moment…I felt something. It felt like there was something happening  in that room that was bigger than the group. I felt like I was connecting to something. And in that moment ….that was God.

I heard something. It was real to me. People that don’t believe in transcendent experiences—I always think like, “You haven’t been to the right concert… You haven’t used the right drugs. You haven’t fallen in love with the right partner.”

These experiences are real, and I think whatever narrative you’re in when you have one, it confirms that narrative. If I would have had that same transcendent moment with my friends in a mosque in Afghanistan, it would have confirmed Islam to me. But I was in the Christian world, so from that point on, Jesus was real to me.

In Campolo’s own words, he became a  Christian because of a transcendent experience….a feeling that resonated deeply in his heart.

He had a feeling, and he took that feeling as a reason for believing propositional claims about the external world. God’s existence? He had a feeling. Christ’s resurrection? He had a feeling. The reliability of the Bible? He had a feeling. Instead of focusing on truth, he spent his early life pursuing social justice. He didn’t look at evidence, he just tried to have experiences. He tried to chase feelings by having little Christian ministry adventures. Missions trips. Volunteer work. Community. Charismatic speaking to crowds about things he knew literally nothing about.

Further on in the dialog, he explains that his standard for allegiance is not truth, it’s literally “what works”. And he clarifies “what causes [people] to thrive, what causes [people] to flourish”. His emphasis (in his ministry) was always on feeling good by being nice to people, because they liked him. This perspective is rampant in the evangelical church, especially among progressive young people. The idea of testing the Christian worldview against science and history to see if it is true is absolutely out. Instead, it’s all about feeling good and making people like you by being nice to them.

Experiences made him an atheist. He worked with poor people, and he decided that God didn’t exist because he wasn’t making these people happy. He had gay roommates in college, so he decided that the Bible’s rules around sexual morality had to be wrong. Never any investigation of economics to understand poverty, no investigation of homosexuality in the peer-reviewed literature, etc. It was feelings all the way. A bit later, Campolo extols the virtue of blind faith, and blasts apologetics as ineffective at changing minds. And then later, he has a bicycle crash, and he becomes convinced from that accident that “this life is all we have”. So he disproved substance dualism, which is consistent with the Bible and supported by multiple lines of philosophical argumentation and experimental evidence… by having feelings about a bicycle crash.

Now, on this blog, we despise feelings and experiences. We discuss scientific evidence for a Creator and a Designer all the time. The origin of the universe, the fine-tuning, the origin of life, the Cambrian explosion, the habitality requirements, etc. For Campolo, Christianity was never about truth, and so he never conducted an investigation about whether it was true. The only God he would accept was a god who “worked for him” – who made him feel good, and who made people (including non-Christians) like him. It was all about him, never about adjusting himself to an objective reality that might have involved obedience to God, having some bad feelings, and being disliked by non-Christians.

The more emphasis that a person places on feelings, intuitions, travel, adventure, and social justice, the farther away they tend to be from analytical philosophy, historical investigation, scientific evidence, etc. You cannot establish the truth of a worldview by going on a missions trip to Haiti, or by holding orphans in Bolivia. The truth of Christianity is known through study of reality, using logic, science and historical analysis. Making feelings the foundation for a worldview is just a disaster waiting to happen.

Alisa has some words of caution to young Christians and their parents about experience as the root of a Christian worldview:

  1. You can be talked out of an experience.
  2. Your heart and feelings lie.
  3. You can fall back on evidence in times of doubt or suffering.

Here is number 2:

The prophet Jeremiah described the human heart as “deceitful above all things and desperately sick.” Proverbs 3:5-7 tells us not to “lean on our own understanding.” Jesus described the human heart as being filled with thoughts like murder, adultery, sexual immorality, theft, false testimony, and slander. Proverbs 28:26 tells us that whoever trusts his own mind is a fool.

In other words, do not, under any circumstances, follow your heart.

This, of course, stands in stark contrast to the themes we are constantly encountering in entertainment and on social media. However, when it comes to spiritual beliefs, trusting our hearts and following our feelings can lead to all sorts of aberrant theology, sinful choices, and a distortion of true Christian faith.

See that?

“In other words, do not, under any circumstances, follow your heart.”

We need more Christians saying this in the church. Especially Christian women – it’s better when women put evidence at the center of the Christian life, and push feelings out to the edges.

By the way, she mentions a quotation from J. Warner Wallace about not being a Christian because “it works for me“. I wrote a whole post about this.

If you want to read another deconversion story that shows how a focus on feelings and experiences leads to atheism, check out the story of Dan Barker. I know so many people who were raised in the church by pastors who were anxious to “protect” Christian truth claims from  being proved or disproved by evidence. They thought that their approach was more pious – how dare we let science and history stand in judgment over the Bible? When I look at Dan Barker and Bart Campolo, I can see where that fideism ended up. Piety is a cheap way of gaining respect without having done any work. We need to demand better from pastors. They ought to be able to show their work. They ought to be able to demonstrate what reasoning and evidence led them to their convictions. Not their feelings and experiences, but actual reasoning and evidence.

The sooner we get to the point where Christianity is true because of reason and evidence, regardless of individual feelings, the better off we will be at being authentic followers of Jesus.

Finally, if you liked the Unbelievable show dialog between McDowell and Campolo, there is a 3-hour discussion on the same topic, which was held at the Faith Beyond Belief conference in Calgary, Alberta, Canada last week. The video has been posted on YouTube.

Positive arguments for Christian theism