by jimwalton » Tue Oct 29, 2019 4:50 pm
You understand, I should hope, that I am abbreviating the arguments. Each one requires a chapter. I guess I had assumed that if you were having this conversation you had done some research into the subject yourself. Perhaps I'm wrong, but if not, then it's not reasonable of you to reject an argument based on a 3-sentence summary of it.
The subject at hand is that "Christianity is based on a circular argument." Whether you like my arguments or not, they still show that Christianity is not based on a circular argument.
> The burden of proof is on you.
In a court of law, the burden of proof is on the affirmative (the plaintiff). In a debate, the burden of proof is on anyone making a claim, from either side. I asked for a rebuttal case (what you subscribe to and the evidence for it) and didn't get one. That tells me something.
I can try to put the real case here, but it would take 10 posts of walls of text to put it all. Here, for instance, for you, is a more thorough version of the Cosmological case. It's just 1 piece of many more if you want the whole argument for God's existence. You'll see why I didn't give the full case for all the points. The upshot is: Christianity is not circular, and the case for theism is FAR stronger than any case of rebuttal.
The cosmological argument is about causes—what caused the universe we now see. Everything we see around us had to have come from somewhere—something that made it come into existence. Things don’t just pop into existence all by themselves. Other things make them come into existence. My claim is that science gives us no evidence of anything that began to exist spontaneously of its own volition. We know of nothing that at any time began to exist from its own nature (How can something pop itself into existence when it doesn’t exist?). If it had a beginning, it had a cause outside of itself, whether technological, mechanical, or even biological. Something had to have already existed.
Scientists are on the hunt for "the beginning." They use mathematics to extrapolate back to "the beginning." Using the observable expanding universe (from the Big Bang) as factors in the equation, the theory holds that way back in time, before the Bang, there existed only an infinitesimally small point consisting of no matter and no dimension, where the laws of physics as we know them were not in operation. If that is the case, so goes the Cosmological Argument, a supreme, supernatural divine being outside of what we know as nature is a logical candidate to have been the First Cause.
Ilm al-Kalam proposed that unless there was a beginning, there wouldn’t be a present. Think of it this way: Suppose you go to the grocery store and, approaching the deli counter, you plan to take a ticket for your proper turn. But on the ticket-dispenser you see a sign that says, “Before taking this ticket, you must take a ticket from the machine on the right.” You reach for that machine, but it also has a similar sign on it. The third machine has the same sign. And the fourth. This could go on forever (which is Kalam’s point), unless you finally get to a machine somewhere in the line that allows you to take a ticket. Unless there is a beginning, there can be no present.
Kalam’s case could also be stated mathematically. Instead of starting counting at 1, start at the first number after zero. Well, you can't start at .9, because there's .8, .7, etc. You can’t start at .1 because there's .99, and there's .999, and .9999. In other words, if we have to consider an infinite quantity of previous numbers, we can't even begin to count.
Here is the way Kalam’s argument looks:
1. Everything that begins to exist has a cause.
2. The universe began to exist.
3. Therefore, the universe has a cause.
What he is arguing is that somewhere there must be a First Cause, something (or Someone) that was always there to kick the whole thing into gear, to cause everything else. The Cosmological Argument states that God is a more reasonable possibility as the First Cause than any other explanation.
We are wrestling with what best explains the beginning. Since such realities cannot be observed with our senses or tested in a lab, and since the laws of physics and the forces of the universe were not operational before the Big Bang, theists claim that no explanation for the universe can be found from nature’s own existence, since it didn't yet exist. The mechanism that caused the universe was external to the universe. While alternatives for what that mechanism was are continually theorized and discussed, God is not an irrational choice among the options, and it's certainly not circular.
The arguments against the Cosmological Argument are as follows:
(1) "Why couldn’t the Big Bang have happened with no cause? Maybe it just happened." The problem with this approach is that science knows of no such possibility. Even biological things came from other biological things, or at least from something that already existed. To think that the universe spontaneously generated flies in the face of logic and science. Something had to have existed before the Big Bang to cause it to happen.
(2) "The universe is endless and uncaused." According to Kalam’s logic, this is impossible, and according to what scientists tell us, the universe is not endless. We now have fairly strong evidence that the universe is not endless and uncaused, but had an absolute beginning about 13.7 billion years ago. In 2003 cosmologists Arvind Borde, Alan Guth, and Alexander Vilenkin were able to prove that since the universe is in a state of cosmic expansion, it cannot be eternal in the past but must have had an absolute beginning. According to Vilenkin, "Cosmologists can no longer hide behind the possibility of a past-eternal universe. There is no escape, they have to face the problem of a cosmic beginning." It reasonably follows, then, that there must be a transcendent cause that brought the universe into being.
(3) "A quantum event of unknown character and means triggered the Big Bang." Yet this is a "god-of-the-gaps: argument that is purely speculative with no substance to support it. In addition, it still presumes the effects of scientific forces in an environment devoid of scientific forces.
(4) "If an infinite universe is logically impossible, how can an infinite God be logically possible?" At the bottom line, something has to be eternal, has to have always been. Either it was material or nonmaterial. Since both science and logic give strong evidence that it was not material, we are left with a nonmaterial cause that is eternal.
(5) "I don’t think it being 'metaphysical' proves anything about it being a divine source." My assertion is this: since the material didn’t exist (as far as we know), that seems to point to a nonmaterial cause. Since time didn't exist, that seems to point to a timeless cause. Since it would take power to create the Big Bang, that seems to point to a powerful cause. Since impersonal causes must have first causes, and only personal causes are capable of being first causes, then that seems to point to a personal cause. A nonmaterial, timeless, powerful, personal cause points to God.
So what caused the universe to begin to exist? It has to have had a cause. If the causal mechanism of the universe was not a thing (it was not matter, since science tells us the universe had a beginning and since it was a dimensionless singularity where all the laws of nature were non-existent), and since it was not, therefore, "scientific" (physics, chemistry, biology), then we have to wonder if the causal mechanism was a metaphysical being with the capability to motivate the Bang. This is not assuming a God; I have not already proven the existence of the spiritual realm, but it’s bringing into the equation the only alternative to a material causal mechanism: an immaterial, metaphysical, timeless, powerful one. God is a reasonable choice as to that cause.
Richard Swinburne gives another version of the cosmological argument, this one showing how theism is the most plausible conclusion to the cause of the universe. His reasoning flows as follows.
If we assume the universe had no beginning, we assume that a series of events conforming to the physical forces of the universe brought about what we now have. The only causes at work are those that are effects of previous causes (an unending chain of causes and effects). What we are lacking, however, is a complete and scientific explanation for such a sequence of events. It has no complete explanation, nor even a full one. While we may be able to explain parts of it, it still has many theoretical and inexplicable components, since we ultimately cannot know all of what happened in eternity past. Therefore we have no complete explanation from science.
Therefore, Swinburne says, neither in any of the pieces we know about nor in the whole aggregate and series of things can be found sufficient reason of existence. We will never come upon a full reason of why there is something rather than nothing, for instance, or why it should be such that it is.
The same logic applies even if the universe did have a beginning. While we may speculate and theorize, a full and complete scientific explanation will be lacking. The existence of the universe over the course of time is simply too big a question for science to answer, and particularly the why questions.
If the existence of the universe is to be explained, a personal element must be inserted—an explanation given in terms of a Person who is not part of universe or its sequence of cause-and-effects, acting from outside it (given, of course, that this Person has both the intention and the power to bring it about).
The reasons of the world and its complete explanation, then, lie in something different and distinct from the chain of events or series of things whose aggregate constitutes the universe. If we are going to postulate a personal cause, this Person must be of infinite power, knowledge, and freedom—in other words, God.
The choice at this point is not to explain how God came to be of such power and knowledge, but rather whether the universe or God leads us to a more complete explanation of why there is something rather than nothing, and how it came to be. God qualifies for the Principle of Sufficient Reason, whereas nature does not.
Since the ultimate explanation of the universe cannot be found in science (our knowledge of the physical world), the ultimate root must be found outside of science (the metaphysical). If there is such metaphysical necessity, them, it follows that there must exist some one Personal Being of metaphysical necessity, that is, from whose essence all other existence springs—in other words, God.
According to Occam's Razor (the simplest explanation has weight of being the right explanation), theism has great simplicity of explanation—in other words, God.
In conclusion, there is quite a chance that if there is a God, He would or could make something of the extent and complexity of the universe. Weighing the alternatives, it is less likely that a universe would exist uncaused, but rather more likely that a being such as God would exist uncaused. The universe is complex and puzzling, but can easily be made comprehensible if we suppose it is brought about by God. Theism poses both simplicity of explanation and sufficiency of explanation, while naturalism and science lacks complete explanation as well as sufficiency of reason. Therefore it is more logical to believe that the universe was caused by God than without Him.
There. Now you know why I tried to summarize it for you. So don't accuse me of fallacious reasoning. This is step one of a vast body of evidences for theism.