Philosophers discuss perennial questions whose answers may not be settled through scientific inquiry alone. Does God exist? Is there an afterlife? Why is there something rather than nothing? With respect to the existence of God, there are roughly three positions one may hold.
I take Atheism to be the view which states that God does not exist. Theism is the view which states that God exists. Agnosticism is the view which states the existence of God is unknowable or an open question. The agnostic does not find the arguments and evidence provided by either the Atheist or the Theist to be compelling. Thus, unlike the theist or atheist, the agnostic does not take a stand on the question.
I take Atheism to be the view which states that God does not exist. Theism is the view which states that God exists. Agnosticism is the view which states the existence of God is unknowable or an open question. The agnostic does not find the arguments and evidence provided by either the Atheist or the Theist to be compelling. Thus, unlike the theist or atheist, the agnostic does not take a stand on the question.
Before moving forwards, it’s important to clarify two
things: what I mean by God and how to interpret the claims made by both the
theist and atheist.
I take God to be a disembodied mind that created the
universe. God is all-knowing, all-powerful, perfectly good, transcendent
(exists outside of space and time), and eternal. This description of God holds
true for the Abrahamic religions (Christianity, Judaism, and Islam), but may
not accord well with conceptions of God from eastern religions, for which I
know little about. I shall then focus my discussion on the Western conception
of God.
What exactly does it mean to be an atheist? Some
atheists have understood the claim as relative to some particular God. On this
interpretation, one can be an atheist with respect to the Christian God, but a
theist with respect to the God of Islam. Despite this being a popular interpretation
on the web—and amongst “New Atheism” circles”—I will use the term how it has
been traditionally used. Most philosophers—especially within the sub-discipline
of philosophy of religion—understand the claim to be universal. Atheism is
typically taken to be a rejection of all Gods. All it takes to be a Theist is
to believe that a God exists, whether
it is the God of the Bible or the God of the Quran.
Lastly, to be a theist or atheist, one does not need
to be certain, nor does one even have to have any justification. One can be a
theist or atheist based on faith. But to rationally defend either position, one
would have to provide some justification.
Why
do people believe in God? To be clear, I am interested in the justification for
belief in Theism rather than some causal story (e.g. ‘because they were taught
at a young age’). Here are three different kinds of justification:
1) Evidence:
Religious experiences, the apparent fine-tuning
of the physical constants, miraculous events.
2) Rational
argument: The Kalam cosmological argument, the argument from Design
3) Pragmatic
reasons: Pascal’s wager (i.e. given the possibility of hell, it’s best to
believe)
Believing that God exists
on the basis of some evidence or arguments can be perfectly reasonable thing to
do. Whether or not such a belief is true is another matter.
Of all of
the rational arguments for the existence of God, I find the Kalam cosmological
argument to be the most powerful, though ultimately not compelling (see Craig
and Sinclair 2009 for an extensive overview). The argument goes like this:
The
Kalam cosmological argument
P1) Everything that begins to exist has a cause
P2) The universe began to exist
C) The universe had a cause
If C, then the universe was caused by something other
than itself. It is argued that the cause of the universe must be immaterial and timeless (outside of space and time), and have the power to create universes. Theists argue that the best candidate for the cause of the
universe is God. I will now assess each of the premises in turn.
Why should we accept the first premise? One reason
would be that it seems as if everything we observe in the universe is brought
into existence by something else. For example, the birth of a newborn was—in
part—caused by its mother. Barring possible exceptions within the quantum world
(e.g. nuclear decay of atoms), I will grant the theist this much. However, the
first premise can be challenged on the following grounds. It may be true that
everything within the universe has a cause, but that the universe as a whole
does not. Just because a lego castle is made up of tiny bricks does not mean
that the castle has to be tiny. Therefore, the first premise sneaks in what has
been called the fallacy of composition.
However, theistic philosophers, such as William Lane Craig, argue that one can provide support for premise
1 without appealing to such a fallacious argument. He argues that premise 1 is
common sense and that it is just absurd to accept the alternative. To think
that something, especially an entire universe, could just pop into existence
out of nothing, seems preposterous.
What about the second premise? Support for premise 2
is often marshalled from the science of cosmology. At the moment, most
cosmological evidence points towards the observable universe having a beginning,
though it does not demonstrate that the cosmos as a whole had a beginning. Our universe could be one of many
universes within an eternal multiverse. Given that cosmology as a science is still highly speculative and premature, we shouldn't give much weight to claims about the cosmos as a whole, but one might argue that the evidence we do have supports premise 2, at least for what is observable to us.
Logic 101 dictates that if an argument is logically valid and the premises are true, then the conclusion also has to be true. The argument is clearly valid. Therefore, if one is to reject the argument’s conclusion—the universe had a cause—one must reject one of its two premises.
Here are three escape routes an atheist might want to consider.
First, the atheist could argue that the universe could have popped into
existence out of nothing (Note that this isn’t what certain physicists, such as
Lawrence Krauss (2012), have in mind when they say the universe could have came
from nothing. Krauss and others cheat
by substituting nothing with a quantum vacuum state containing energy. That isn’t
nothing!). Second, they could say that current cosmological theories and models
are flawed or incomplete. Lastly, the atheist could argue that the cause of the
Universe need not be God. All three escape routes require supporting arguments
and justification which I will not take up here. I will now turn to some of the
arguments and reasons for adopting Atheism and explain why I take some of them
to be compelling.
To rationally accept atheism, it is not enough to say
that the arguments and evidence for God’s existence aren’t convincing; one must
provide positive arguments for atheism. Lacking positive reasons for adopting atheism,
agnosticism seems to be the more reasonable position to maintain. Many
self-proclaimed atheists reject such a requirement on the following grounds.
First, they argue that you cannot prove a negative, and therefore, atheism isn’t
a position that can be defended. Rather, it is a position that reflects one’s
lack of belief in God. Furthermore, to be an atheist, all that one needs to
show is that there is no evidence and/or arguments that support God’s
existence. I disagree on multiple counts. Not only can you prove a negative,
you can provide a rational defense of Atheism. I’d like to add that defending a
philosophical position does not require proving
that the other side is wrong. One just needs to show that the arguments in
support of their side are more persuasive that the supporting arguments for the
opposing view. So, why do people accept atheism?
Evidence that makes God’s existence unlikely: The countless instances of pointless suffering the world, the success of
naturalistic theories at explaining how the world works and where it came from
(God is superfluous), religious diversity.
Arguments for atheism: The argument/problem of evil,
the argument from divine hiddenness, the causal argument, the concept of God
involves contradictions.
Perhaps the most famous example of an argument for
atheism would be the argument from evil (also known as the problem of evil). The
argument comes in many forms, but I will soon put forward what I take to be one
its strongest forms (see Tooley 2015 for a review). First, I must clarify
something about the nature of evil. There are older arguments that suggest that
the existence of evil or pain and suffering is itself incompatible with God’s
existence. These arguments fail because some suffering is thought be necessary
for personal growth, appreciation of the good, and the greater good of mankind.
Pain and suffering is also thought to be a way for God to test his creatures’
faith. The following argument concedes that some pain and suffering is
necessary for God’s plan to work, but that copious amounts of pain and
suffering that seemingly serve no purpose, provide reason to think that God
probably doesn’t exist.
Evidential
argument from evil
P1) If God is all good and all powerful, then there wouldn’t
be any pointless pain and suffering
P2) There exists copious amounts of pointless pain and
suffering in the world (e.g. natural disasters, mass extinction events, animal
suffering from predation, disease, genetic abnormalities, starvation etc.).
C) A God with such attributes (omnipotence +
omnibenevolence) is very unlikely to exist
Both premises
require more explication and justification. At first glance, the first premise
seems pretty uncontroversial. If there were instances of pointless pain and
suffering (i.e. pain and suffering that does not lead to personal growth or to
some greater good), then God would and should
have the power to prevent them. At this point the theist might pull the mystery card. As
mere mortals, we cannot know why God does certain things, or what the right
courses of action should even be. Such a line of argument could be used to
challenge the second premise as well. There may seem to be copious amounts of needless pain and suffering in the
world, but it doesn’t follow from that that there in fact is. To test the
plausibility of such a claim, let’s look at a specific proposal.
Mass extinction events:
Assuming that most non-human animals can experience pain and suffering, events
where 90% of the animal population were wiped out (e.g. asteroid impacts) would
involve a great deal of pain and suffering (see Kolbert 2014 for a review of
five such catastrophes). Billions of creatures starving to death, burning
alive, and being poisoned or smothered by toxic gases. What was the point? How
did the suffering of billions of creatures contribute to some greater good?
Couldn’t God have brought about the human race without such a long history of
pain and suffering?
Theists have given several responses to such claims.
Some have alleged that most (if not all) non-human animals lack the capacity to
experience pain or suffering. If true, mass extinction events would not be a
strike against God. To be fair, I think it is an open question whether certain
creatures experience pain and suffering. For example, there is some reason to
think that creatures ranging from insects to bony fish lack the capacity to
experience pain and suffering (Key 2016). Bony fish lack certain brain regions (e.g.
neocortical areas) seemingly responsible for the sensation of pain in other vertebrates,
such as mammals. But even if I give the theist this much, there is good reason
to think that most mammals and birds experience pain and suffering, and that
still constitutes a very large number of creatures.
Another response shifts the blame to rebellious
spirits, ghosts, or fallen angels (Plantinga 1977). The philosopher Alvin Plantinga
argues that it is logically possible for all pointless evil to be attributed to
the actions of humans or other kinds of moral agents (e.g. fallen angels). While
atheists may ridicule an appeal to evil spirits, such entities are a part of a
theistic worldview. How might such an explanation go? Did the fallen angels somehow redirect the asteroid towards Earth? Are all of these beings just running around messing with nature in order to cause pain and suffering for the fun of it? Whatever the case may be, a story involving rebellious spirits sounds quite fantastical.
A third explanation for the long history (~600 million years) of animal suffering would be that such suffering was necessary for the evolution of human beings. But this would effectively be putting constraints on God's power. Why couldn't God have created the world in six days, skipping the whole evolutionary process altogether? Certain theologians and theistic philosophers concede that there are some constraints on God's power, namely, that God is bound by the laws of logic. It is said that God cannot make 2+2=5, bring about square circles, or create married bachelors, all of which involve some kind of contradiction (a violation of logical law). But what is contradictory about creating human beings without evolution? If there is no contradiction involved, then either 1) God has even less power than previously believed (by being bound by some physical or metaphysical constraints), 2) God is not all-good, or 3) no such being exists.
A third explanation for the long history (~600 million years) of animal suffering would be that such suffering was necessary for the evolution of human beings. But this would effectively be putting constraints on God's power. Why couldn't God have created the world in six days, skipping the whole evolutionary process altogether? Certain theologians and theistic philosophers concede that there are some constraints on God's power, namely, that God is bound by the laws of logic. It is said that God cannot make 2+2=5, bring about square circles, or create married bachelors, all of which involve some kind of contradiction (a violation of logical law). But what is contradictory about creating human beings without evolution? If there is no contradiction involved, then either 1) God has even less power than previously believed (by being bound by some physical or metaphysical constraints), 2) God is not all-good, or 3) no such being exists.
There is much more to say about the other examples of
pointless suffering I have mentioned. Collectively, I consider the evidence for
pointless pain and suffering to be overwhelming. Consequently, I believe that
the problem of evil provides good reason to think that God doesn’t exist. While
a full defense of atheism would require much more space, I hope to have shown
the steps involved in issuing such a defense. If you have not been sold by any
of the arguments presented within this blog post, then you might have some
other reasons or arguments in mind for defending atheism or theism, or you
might be an agnostic.
Next week’s post: Free will and moral responsibility.
I will offer a defense of compatibilism against free will skepticism and
libertarianism. I will also say why the debate matters, and why the issue is much
more complex than many scientists and laypeople make it out to be.
Works
cited:
Craig, W. L., & Sinclair, J. D. (2009). The kalam
cosmological argument. The Blackwell companion to natural theology, 101-201.
Key, B. (2016). Why fish do not feel pain. Animal
Sentience: An Interdisciplinary Journal on Animal Feeling, 1(3), 1.
Kolbert, E. (2014). The sixth extinction: An unnatural
history. A&C Black.
Krauss, L. M. (2012). A universe from nothing. Simon
and Schuster.
Plantinga, A. (1974). God, freedom, and evil. Wm. B. Eerdmans
Publishing.
Tooley, Michael, "The Problem of Evil", The
Stanford Encyclopedia of Philosophy (Fall 2015 Edition), Edward N. Zalta (ed.),
URL = <http://plato.stanford.edu/archives/fall2015/entries/evil/>.