Tag Archives: Physics

William Lane Craig lectures against naturalism at the University of St. Andrews, Scotland

If you missed last night’s lecture that was live-streamed from the University of Calgary, you can watch this one, which was on the same topic.

Note: even if you have heard Dr. Craig’s arguments before, I recommend jumping to the 48 minutes of Q&A time, which starts 72 minutes in.

About Dr. William Lane Craig:

William Lane Craig (born August 23, 1949) is an American analytic philosopher, philosophical theologian, and Christian apologist. He is known for his work on the philosophy of time and the philosophy of religion, specifically the existence of God and the defense of Christian theism. He has authored or edited over 30 books including The Kalam Cosmological Argument (1979), Theism, Atheism and Big Bang Cosmology(co-authored with Quentin Smith, 1993), Time and Eternity: Exploring God’s Relationship to Time (2001), and Einstein, Relativity and Absolute Simultaneity (co-edited with Quentin Smith, 2007).

Craig received a Bachelor of Arts degree in communications from Wheaton College, Illinois, in 1971 and two summa cum laudemaster’s degrees from Trinity Evangelical Divinity School in Deerfield, Illinois, in 1975, in philosophy of religion and ecclesiastical history. He earned a Ph.D. in philosophy under John Hick at the University of Birmingham, England in 1977 and a Th.D. underWolfhart Pannenberg at the University of Munich, Germany in 1984.

Here is the full lecture with Q&A: (2 hours)

Summary:

  • Naturalism defined: the physical world (matter, space and time) is all that exists
  • Dr. Craig will present 7 reasons why naturalism is false
  • 1) the contingency argument
  • 2) the kalam cosmological argument
  • 3) the fine-tuning of the universe for intelligent life
  • 4) the moral argument
  • 5) the ontological argument
  • 6) the resurrection of Jesus
  • 7) religious experience

The Q&A time starts around 1:12:00.

Dr. Craig does mention an 8th argument early in the Q&A – the argument from the non-physicality of mental states (substance dualism), which is an argument that I find convincing, because a materialist conception of mind is not compatible with rationality, consciousness and moral agency. He gets a couple of questions on the moral argument early on – one of them tries to put forward an evolutionary explanation for “moral” behaviors. There’s another question the definition of naturalism. There is a bonehead question about the non-existence of Jesus based on a Youtube movie he saw – which Craig responds to with agnostic historian Bart Ehrman’s book on that topic. There’s a question about God as the ground for morality – does morality come from his will or nature. Then there is a question about the multiverse, which came up at the physics conference Dr. Craig attended the day before. There is a good question about the Big Bang theory and the initial singularity at time t=0. Another good question about transfinite arithmetic, cardinality and set theory. One questioner asks about the resurrection argument. The questioner asks if we can use the origin of the disciples belief as an argument when other religions have people who are willing to die for their claims. One of the questioners asks about whether the laws of nature break down at 10^-43 after the beginning of the universe. There is a question about the religious experience argument, and Craig has the opportunity to give his testimony.

I thought that the questions from the Scottish students and faculty were a lot more thoughtful and respectful than at American colleges and universities. Highly recommended.

William Lane Craig debates Lawrence Krauss: Does God Exist?

Audio of the William Lane Craig vs. Lawrence Krauss debate at North Carolina State University has now been posted at Apologetics 315.

And I also posted some background information on Craig’s arguments.

And now for one of my snarkiest summaries, which is fitting because Krauss is one of the worst debaters ever.

William Lane Craig’s case

William Lane Craig made 5 arguments for the existence of God:

  • the contingency argument
  • theargument from the origin of the universe (kalam)
  • the argument from cosmic fine-tuning
  • the moral argument
  • the argument from the miracle of the resurrection

These arguments went unrefuted during the debate.

Lawrence Krauss’s case

Lawrence Krauss made the following arguments in his first speech:

  • Dr. Craig is a professional debater
  • Dr. Craig is not a scientist
  • Dr. Craig is a philosopher
  • Disproving God’s is a waste of my valuable time
  • Dr. Craig has the burden of proof to show evidence
  • My job is not to present any evidence
  • I think that “extraordinary claims require extraordinary evidence” is a nice slogan, but I have no evidence for it
  • I don’t like that God doesn’t appear on Youtube, therefore he doesn’t exist
  • I don’t like that God didn’t appear to humans until recently, therefore he doesn’t exist
  • I don’t like that the stars didn’t come together to spell “I am here”, therefore God doesn’t exist
  • Dr. Craig has to supply extraordinary evidence, because my favorite slogan says he has to
  • Dr. Craig talks about logic, but the universe is not logical
  • Dr. Craig doesn’t have any arguments, just things he doesn’t like
  • Dr. Craig doesn’t like infinity, and that’s why he believes in the Big Bang cosmology
  • Dr. Craig doesn’t like chance, and that’s why he believes in cosmic fine-tuning
  • Dr. Craig doesn’t like rape, and that’s why he believes in the ontological foundations of morality
  • If people believe in logic, then they can’t do science
  • The things that science discovers contradict the laws of logic
  • For example, Dr. Craig doesn’t like infinity, so he believes in the experimental measurements of the cosmic microwave background radiation
  • For example, Dr. Craig doesn’t like chance, so he believes in the fine-tuning of the gravitational constant for the formation of stable stars
  • Quantum mechanics shows that the universe is stranger than you think, therefore all of Craig’s arguments are false
  • My t-shirt says 2 + 2 = 5, therefore all of Craig’s arguments are false
  • Atheism may look ridiculous, but it’s true, and if you don’t like it, too bad – because the universe is very strange
  • Accidents happen all the time, so that explains the cosmic fine-tuning
  • We all have to convince ourselves of 10 impossible things before breakfast, and atheism is impossible, so you need to convince yourself of it
  • I don’t know about the Big Bang, so Dr. Craig cannot use the Big Bang to to prove the universe began to exist
  • I don’t know about the cosmic fine-tuning, so Dr. Craig cannot use the fine-tuning of cosmological constants to prove the fine-tuning
  • I don’t know anything about science, so Dr. Craig cannot use science in his arguments
  • Dr. Craig says that the universe is contingent because it began to exist 13.7 billion years ago based on the state-of-the-art scientific evidence for the Big Bang creation out of nothing from 1) red-shift of light from distant galaxies, 2) cosmic microwave background radiation, 3) helium-hydrogen abundances, 4) experimental confirmation of general relativity, 5) the second law of thermodynamics, 6) radioactive element abundances, etc., but how does he know that? I don’t know that
  • It’s fine not to know the answer to scientific questions like whether the universe began to exist, it’s more exciting
  • Thinking that the universe began to exist based on 6 pieces of scientific evidence is the “God-of-the-Gaps” fallacy, it’s intellectual laziness
  • But all kidding aside, the universe actually did begin to exist 13.72 billion years ago, exactly like Craig says in his argument
  • I could argue that God created the universe 4.5 seconds ago with all of us sitting believing that we heard Dr. Craig, and how could you prove me wrong? It’s not falsifiable
  • Universes can spontaneously appear out of nothing, and in fact they have to appear out of nothing
  • Nothing is unstable, and space and time can come into existence out of nothing, so that’s not a problem
  • Our universe could have appeared out of a multiverse, an unobservable, untestable multiverse that I have no way of observing or testing
  • The universe is not fine-tuned for life, and no scientist says so, especially not Martin Rees, the atheist Astronomer Royal, and every other scientist
  • What if God decided that rape was OK, would it be OK? God can change his moral nature arbitrarily, can’t he?

Here are the arguments in Krauss’ second speech:

  • We don’t understand the beginning of the universe
  • We don’t understand whether the universe had a cause
  • Steven Weinberg says that science makes it possible to be an atheist, so therefore the universe didn’t begin and didn’t have a cause
  • It’s just intellectual laziness to say that the universe came into being 13.7 billion years ago, and that things that come into being of nothing have a cause
  • Dr. Craig is an expert on nothing, ha ha ha!
  • There are multiple versions of nothing, there’s nothing, and then there is something, which is also nothing if I want it to be
  • There was no space, there was no time, and then the space create the empty space
  • I’m going to give Dr. Craig a break
  • At least in the nothing there were laws like F=ma, and those laws created the empty space, because descriptions of matter that does not even exist yet can create space out of nothing
  • Alan Guth and Alexander Vilenkin are good friends of mine and I talk to them all the time, unlike Dr. Craig
  • Alan Guth and Alexander Vilenkin don’t mention God in their scientific papers, therefore the universe didn’t begin and didn’t have a cause
  • Maybe there is a multiverse that cannot be observed or tested? And my unscientific speculations are a refutation of Craig’s scientific evidence for the fine-tuning
  • Dr. Craig just doesn’t like my speculations about the unobservable, untestable multiverse, and that’s why he believes in the Big Bang cosmology
  • And if you let me speculate about an unobservable, untestable multiverse, then maybe the inanimate invisible universes reproduce and compete for food and mutate like animals and then there is natural selection so that the finely-tuned universes survive and now we’re in one!
  • My cool animation of blue goo mutating proves that the multiverse is real! Empty space is not empty!
  • Darwinism, which is a theory about the origin of species, explains the cosmic fine-tuning that occurred at the moment of creation
  • The unobservable, untestable multiverse universes all have different laws, I believe
  • We don’t know what the right answer is, but we are willing to look at any possibility, as long as the possibilities we look at are not supernatural possibilities
  • The discovery of the origin of the universe could be an accident, I don’t know if the universe began to exist or not, maybe all the six scientific evidences are wrong because if I don’t like the evidence we have, so I’ll just wait for new evidence to overturn the evidence we have which I don’t like
  • Maybe there are other forms of life that are unobservable and untestable that are compatible with a universe that has no stable stars, no planets, no elements heavier than hydrogen, no hydrogen, no carbon, etc.

Here are the arguments in Krauss’ third speech:

  • Dr. Craig is stupid
  • Why should we even care about Dr. Craig’s arguments and evidence, we can just count the number of scientists who are atheists and decide whether God exists that way – I decided everything based on what my teachers told me to believe
  • I actually know general relativity, not like Dr. Craig who co-wrote a book on general relativity published by Oxford University Press
  • What quantum mechanics shows is that virtual particles come into being in a quantum vacuum, and then go out of existence almost immediately – and that is exactly like how a 13.7 billion year old universe came into being in a quantum vacuum, and we’re going to disappear very soon
  • Space and the laws of physics can be created, possibly, if you accept my speculations about an unobservable, untestable multiverse
  • I don’t like the God of the Old Testament, therefore he doesn’t exist
  • Groups of people can decide what they think is good and evil, like the Nazis and slave-owners did, and then that becomes good for them in that time and place, and that’s what I mean by morality
  • Here’s something I studied that wasn’t fine-tuned, therefore there is no fine-tuning of the universe
  • Not knowing things is really exciting! Dr. Craig is not really exciting because he knows things – phooey!

Here are the arguments in Krauss’ fourth speech:

  • If you will just grant me an observable, untestable multiverse, then there must be some universe where intelligent life exists
  • Infinite numbers of things exist everywhere in nature, you can see lots of infinite collections of things, like jelly beans and bumblebees and invisible pink unicorns
  • I don’t like the fine-tuning, but if my speculations about the multiverse are proven true, then I won’t have to learn to live with the fine-tuning
  • Inflation, the rapid expansion of the universe which occurs at some time after the the origin of the universe (t = 0), explains the absolute origin of time, space, matter and energy out of nothing that occurred at t = 0
  • Physical processes that develop subsequent to the creation of the universe at t > 0 can explain the fine-tuning of quantities that are set at t = 0
  • Morality is just a bunch of arbitrary conventions decided by groups of people in different times and places by an accidental process of biological and social evolution, but that practice over there by those people is objectively wrong!
  • 1 Cor 15:3-7, which most scholars, even atheists like James Crossley, admit is dated to within 3 years of the death of Jesus, is actually dated to 50 years after the death of Jesus
  • The historical case for the resurrection made by people like N.T. Wright in their multi-volume academic works is on par with the story of Mohammed ascending to Heaven on a horse

If you liked this, please check out my snarky summary of Christopher Hitchens’ speeches in the Craig-Hitchens debate.

Can science explain why anything at all exists?

This interesting post is from cosmologist Luke Barnes. (H/T ECM)

Dr. Barnes takes issue with Lawrence Krauss’ book about the origin of the universe, in which Krauss, an atheist and materialist, tries to explain how something came from nothing without God.

He writes:

Here is my argument.
A: The state of physics at any time can be (roughly) summarised by three things.

1. A statement about what the fundamental constituents of physical reality are and what their properties are.
2. A set of mathematical equations describing how these entities change, move, interact and rearrange.
3. A compilation of experimental and observational data.

In short, the stuff, the laws and the data.

B: None of these, and no combination of these, can answer the question “why does anything at all exist?”.

C: Thus physics cannot answer the question “why does anything at all exist?”.

And here is his conclusion:

Now, why think that neither the stuff, the laws or the data or a combination can answer the question of why anything exists?

1 can’t do it: A statement of the basic constituents of reality, in and of itself, obviously cannot explain why such things exist, any more than the statement “the sky is blue” can explain why the sky is blue. So 1 is out.

2 can’t do it: Mathematical equations describe properties, and existence is not a property. 5 dollars plus 5 dollars equals 10 dollars, but that fact will not tell you how much money is actually in my account. The same is true for all mathematical equations, even the more sophisticated ones used by modern physics. Write down any equation you like – you will not be able to deduce from that equation that the thing it describes really exists. Mathematical equations are abstract entities, they have no causal powers. They can’t do anything, least of all jump off the blackboard and pull entities into existence. So the answer cannot be found in 2.

1 and 2 can’t do it: 1 and 2 together give a theoretical description of reality as we know it, so succumb to the same problems as 2 alone.

3 can’t do it: for the same reason that 1 can’t. The statement “I observed an electron strike a screen” cannot explain why there are electrons at all, and thus (a fortiori) cannot explain why anything exists at all.

1, 2 and 3 can’t do it: Sitting and staring at 1+2 on one hand, and 3 on the other, will tell you why we think that 1+2 really describes our universe. They account for the data, which is what science does. But once again we see no resources to attack the question of why anything at all exists. We’ve successfully described our universe. But that is all.

Thus, physics cannot answer the question “why does anything at all exist?”.

It is important to realise that no amount of progress in physics will change this situation. Imagine the final equation, the law of nature, written on a blackboard to thunderous applause. After the adoration dies down, we will still be faced with the question “why does a universe described by that equation actually exist?”.

This reminds me of what the famous physicist Richard Feynman says about how scientists should speak to laymen.

He writes:

I would like to add something that’s not essential to the science, but something I kind of believe, which is that you should not fool the layman when you’re talking as a scientist. I am not trying to tell you what to do about cheating on your wife, or fooling your girlfriend, or something like that, when you’re not trying to be a scientist, but just trying to be an ordinary human being. We’ll leave those problems up to you and your rabbi. I’m talking about a specific, extra type of integrity that is not lying, but bending over backwards to show how you’re maybe wrong, that you ought to have when acting as a scientist. And this is our responsibility as scientists, certainly to other scientists, and I think to laymen.

For example, I was a little surprised when I was talking to a friend who was going to go on the radio. He does work on cosmology and astronomy, and he wondered how he would explain what the applications of his work were. “Well,” I said, “there aren’t any.” He said, “Yes, but then we won’t get support for more research of this kind.” I think that’s kind of dishonest. If you’re representing yourself as a scientist, then you should explain to the layman what you’re doing– and if they don’t support you under those circumstances, then that’s their decision.

It seems to me that Dr. Barnes is acting on Dr. Feynman’s advice, while Lawrence Krauss, in writing a sensational book that attempts to mislead laymen about what science can and cannot do, is not.

I think that science is a good thing, and that it is helpful to theists. It strengthens the theistic hypothesis in many ways, especially with research about the Big Bang, research about cosmic fine-tuning, research about the origin of life and DNA, research about the fossil record and the Cambrian explosion, research in astrobiology and habitability, and so on.