Tag Archives: Cosmology

Audio and video from the debate between William Lane Craig and Lawrence Krauss

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.

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, but which was in fact created by none other than the Flying Spaghetti Monster!
  • The universe is not fine-tuned for life, and no scientist says so, especially 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?
  • Would you have any preference as to whether I was born an atheist baby or a Muslim baby?

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, because I am not giving up my right to recreational sex outside of marriage!
  • 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 needed good grades to make money so I could move out of my bossy parents’ house and have fun!
  • 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, especially his prohibition on drunkenness and fornication, 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.

The kalam cosmological argument defended in a peer-reviewed science journal

Here’s the peer-reviewed article. It appears in a scientific journal focused on astrophysics.

Here’s the abstract:

Both cosmology and philosophy trace their roots to the wonder felt by the ancient Greeks as they contemplated the universe. The ultimate question remains why the universe exists rather than nothing. This question led Leibniz to postulate the existence of a metaphysically necessary being, which he identified as God. Leibniz’s critics, however, disputed this identification, claiming that the space-time universe itself may be the metaphysically necessary being. The discovery during this century that the universe began to exist, however, calls into question the universe’s status as metaphysically necessary, since any necessary being must be eternal in its existence. Although various cosmogonic models claiming to avert the beginning of the universe predicted by the standard model have been and continue to be offered, no model involving an eternal universe has proved as plausible as the standard model. Unless we are to assert that the universe simply sprang into being uncaused out of nothing, we are thus led to Leibniz’s conclusion. Several objections to inferring a supernatural cause of the origin of the universe are considered and found to be unsound.

The whole article is posted online here.

Here’s an excerpt in which Craig explains the Big Bang cosmology:

The monumental significance of the Friedman-Lemaitre model lay in its historization of the universe. As one commentator has remarked, up to this time the idea of the expansion of the universe “was absolutely beyond comprehension. Throughout all of human history the universe was regarded as fixed and immutable and the idea that it might actually be changing was inconceivable.”{8} But if the Friedman-Lemaitre model were correct, the universe could no longer be adequately treated as a static entity existing, in effect, timelessly. Rather the universe has a history, and time will not be matter of indifference for our investigation of the cosmos. In 1929 Edwin Hubble’s measurements of the red-shift in the optical spectra of light from distant galaxies,{9} which was taken to indicate a universal recessional motion of the light sources in the line of sight, provided a dramatic verification of the Friedman-Lemaitre model. Incredibly, what Hubble had discovered was the isotropic expansion of the universe predicted by Friedman and Lemaitre. It marked a veritable turning point in the history of science. “Of all the great predictions that science has ever made over the centuries,” exclaims John Wheeler, “was there ever one greater than this, to predict, and predict correctly, and predict against all expectation a phenomenon so fantastic as the expansion of the universe?”{10}

As a GTR-based theory, the Friedman-Lemaitre model does not describe the expansion of the material content of the universe into a pre-existing, empty, Newtonian space, but rather the expansion of space itself. This has the astonishing implication that as one reverses the expansion and extrapolates back in time, space-time curvature becomes progressively greater until one finally arrives at a singular state at which space-time curvature becomes infinite. This state therefore constitutes an edge or boundary to space-time itself. P. C. W. Davies comments,

An initial cosmological singularity . . . forms a past temporal extremity to the universe. We cannot continue physical reasoning, or even the concept of spacetime, through such an extremity. . . . On this view the big bang represents the creation event; the creation not only of all the matter and energy in the universe, but also of spacetime itself.{11}

The popular expression “Big Bang,” originally a derisive term coined by Fred Hoyle to characterize the beginning of the universe predicted by the Friedman-Lemaitre model, is thus potentially misleading, since the expansion cannot be visualized from the outside (there being no “outside,” just as there is no “before” with respect to the Big Bang).{12}

The standard Big Bang model thus describes a universe which is not eternal in the past, but which came into being a finite time ago. Moreover,–and this deserves underscoring–the origin it posits is an absolute origin ex nihilo. For not only all matter and energy, but space and time themselves come into being at the initial cosmological singularity. As Barrow and Tipler emphasize, “At this singularity, space and time came into existence; literally nothing existed before the singularity, so, if the Universe originated at such a singularity, we would truly have a creation ex nihilo.{13}

[…]On such a model the universe originates ex nihilo in the sense that at the initial singularity it is true that There is no earlier space-time point or it is false that Something existed prior to the singularity.

Now such a conclusion is profoundly disturbing for anyone who ponders it. For the question cannot be suppressed: Why does the universe exist rather than nothing? In light of the universe’s origin ex nihilo, one can no longer dismiss this question with a shrug and a slogan, “The universe is just there and that’s all.” For the universe is not “just there;” rather it came into being. The beginning of the universe discloses that the universe is not, as Hume thought, a necessarily existing being but is contingent in its existence. Philosophers analyzing the concept of necessary existence agree that the essential properties of any necessarily existing entity include its being eternal, uncaused, incorruptible, and indestructible{14}–for otherwise it would be capable of non-existence, which is self-contradictory. Thus, if the universe began to exist, its lacks at least one of the essential properties of necessary existence-eternality. Therefore, the reason for its existence cannot be immanent, but must in some mysterious way be ultra-mundane, or transcendent. Otherwise, one must say that the universe simply sprang into being uncaused out of absolutely nothing, which seems absurd. Sir Arthur Eddington, contemplating the beginning of the universe, opined that the expansion of the universe was so preposterous and incredible that “I feel almost an indignation that anyone should believe in it–except myself.”{15} He finally felt forced to conclude, “The beginning seems to present insuperable difficulties unless we agree to look on it as frankly supernatural.”{16}

I find that most scientists do not reflect philosophically upon the metaphysical implications of their theories. But, in the words of one astrophysical team, “The problem of the origin [of the universe] involves a certain metaphysical aspect which may be either appealing or revolting.”{17}

Every theist should able to understand and defend this argument. It is a scientific refutation of materialism, and it is supported by six lines of scientific evidence – all of which emerged as science has progressed.

Scientific evidence:

  1. Einstein’s theory of general relativity (GTR)
  2. the red-shifting of light from distant galaxies
  3. the cosmic background radiation (which also disproves the oscillating model of the universe)
  4. the second law of thermodynamics applied to star formation theory
  5. hydrogen-helium abundance predictions
  6. radioactive element abundance predictions

Several naturalistic/materialistic cosmologies are refuted in Craig’s peer-reviewed paper, including the steady-state model, oscillating model, the vacuum fluctuation model, the chaotic inflationary model, and the quantum gravity model. These naturalistic (no God) alternatives all have theoretical or observational difficulties. Atheism is at odds with modern cosmology – and the progress of science itself.

This is the kind of evidence I expect all my readers to be using when discussing whether God exists. Scientific evidence. Please do not talk about your testimony, or the Bible, or what your pastor said on Sunday. We need to show that we understand science, because science is a reliable and respected way of getting knowledge about the universe. Science (experimental, testable, repeatable science) should set limits on what we can believe. Leave the wishing and hoping and praying and dreaming to the atheists.

You should definitely print this article out and read it, then send it to your atheistic friends. I have tried this out on atheists, and the response I get is that scientific discoveries will soon emerge that falsifies all of these six scientific discoveries, and the kalam cosmological argument, and will prove that the universe is eternal. When I ask them for reasons to believe that these discoveries will be forthcoming, they appeal to science fiction novels, television shows and movies. I will take a peer-reviewed research paper over Star Trek any day of the week.

Atheism hates science

Theism loves science

Is carbon required for complex life? Is the production of carbon fine-tuned?

Here’s an article by Fuz Rana at Reasons to Believe, talking about alternatives to carbon-based life. (H/T Tough Questions Answered)

Excerpt:

Life as we know it on Earth consists of carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur (CHONPS). But could other elements constitute life as we don’t know it?

Not merely a discussion topic for science-fiction buffs, this question bears on origin-of-life discussions and on the search for extraterrestrial life. Carbon-based life requires a strict set of conditions. But perhaps life based on an element like silicon can exist under more extreme conditions. Few places in our solar system, and presumably beyond, can conceivably support carbon-based life. But for life built upon silicon, habitable sites may well abound throughout the universe.

However, of the 112 known chemical elements, only carbon possesses sufficiently complex chemical behavior to sustain living systems.  Carbon readily assembles into stable molecules comprised of individual and fused rings and linear and branched chains. It forms single, double, and triple bonds. Carbon also strongly bonds with itself as well as with oxygen, nitrogen, sulfur, and hydrogen.

Carbon serves as the hub of complex molecules. You can join lots of different things to it so that they stay put. But the bonds are not so strong that you can’t break things apart if you really want to. That’s what makes it suitable for making complex life, and why people talk about “carbon-based life”.

The rest of the article explains why other kinds of elements like silicon and phosphorus are not suitable for creating life.

Is carbon synthesis fine-tuned?

Here’s an article by agnostic physicist Paul Davies explaining why people think that the production of carbon in the universe is an example of fine-tuning.

Excerpt:

One of the best-known examples of this life-friendly ‘fine-tuning’ of the laws of physics concerns carbon, the element on which all known life is based. The Big Bang that kicked off the universe coughed out plenty of hydrogen and helium, but no carbon. So where did the carbon in our bodies come from? The answer was worked out in the 1950s: most of the chemical elements heavier than helium were manufactured in the cores of stars, as the product of nuclear fusion reactions. It is the energy released by these reactions that makes the Sun and stars shine.

However, while the details of stellar nuclear reactions are fairly straightforward, there is a notable exception: carbon. Most nuclear reactions in stars occur when two atomic nuclei, rushing around at tremendous speed care of the searing temperatures, collide and fuse, forming a heavier element. But carbon cannot be made this way because all the intermediate steps from helium to carbon involve highly unstable nuclei. The solution, spotted by University of Cambridge astronomer Fred Hoyle, is for carbon to form from the simultaneous collision of three helium nuclei.

THERE IS, HOWEVER, a snag. The chances that three helium nuclei will come together at the same moment are tiny. So Hoyle reasoned that a special factor must be at work to boost the rare reaction and lead to our abundance of carbon. If not, then life in general, and Fred Hoyle in particular, would not exist!

Hoyle knew that nuclear reactions can sometimes be greatly amplified by the phenomenon of resonance, similar to the way that an opera singer can shatter a glass by hitting a certain pitch. Carbon nuclei can resonate too, if the masses and energies of the colliding particles that go to form it are just right. Hoyle worked backwards — he knew the particle masses and energies, and he used them to predict the existence of a carbon resonance.

He then pestered Willy Fowler, a nuclear physicist at the California Institute of Technology, to do an experiment to test the prediction. And sure enough, Hoyle was right. Carbon has a resonant state at exactly the right energy to enable stars to manufacture abundant carbon, and thereby seed the universe with this life-encouraging substance.

Hoyle immediately realised just what a close-run thing this mechanism is. Like Baby Bear’s porridge in the story of Goldilocks, the energy of the carbon resonance has to be “just right”. Too high or too low, and the consequences for life would be catastrophic.

So what determines the carbon resonance? Ultimately it depends on the strength of the force that binds protons and neutrons together in the nucleus. That force is one of the unexplained parameters of basic physics — one of the knobs on the Designer Machine if you like. If the strength of the force that determined the carbon resonance was only a fraction stronger or weaker, it is doubtful there would be observers in the universe to worry about the distinct absence of carbon.

Hoyle himself was deeply impressed by this discovery. “It looks like a put-up job,” he quipped. “A commonsense interpretation of the facts suggests that a superintellect has monkeyed with physics,” he later wrote. A similar conclusion was reached by the Princeton physicist Freeman Dyson: “In some sense, the universe knew we were coming.”

He doesn’t accept that God is the fine-tuner though, so the article just concludes with “it could be” speculations, which is all that naturalists can offer against the standard theistic arguments. Still, what he said about the finely-tuned synthesis of carbon is accurate.