Title: Chapter 6 The Problem of Evil and the Existence of God
1Chapter 6The Problem of Evil andthe Existence
of God
2Beliefs in God
- Theistone who believes in a personal god who
rules the world. - Agnosticone who neither believes nor disbelieves
in god. - Atheistone who disbelieves in god.
- Deistone who believes that god created the
universe and then abandoned it. - Pantheistone who believes that the universe is
god.
3Thought Probe Biblical Truths
- Modern archaeology has failed to find confirming
evidence for many of the Bibles historical
claims. - Does this undercut the credibility of its
non-historical claims? Why or why not?
4Section 6.1The Mysterious Universe
5Cosmological Arguments for the Existence of God
- Cosmological arguments for the existence of God
attempt to derive the existence of God from the
existence of the universe.
6The Traditional Cosmological Argument
- Some things are caused.
- Nothing can cause itself.
- Therefore, everything that is caused is caused by
something other than itself. - The chain of causes cannot stretch infinitely
backwards in time. - If the chain of causes cannot stretch infinitely
backward in time, there must be a first cause. - Therefore, everything that is caused has a first
cause, namely, God.
7Problems with the Traditional Cosmological
Argument
- Even if there is a first cause, it doesnt have
to be God. - The notion of an infinite string of causes is no
more self-contradictory than the notion of an
infinite string of numbers. - So the universe itself may be eternal.
8The Kalam Cosmological Argument
- Whatever begins to exist has a cause.
- The universe began to exist.
- Therefore, the universe had a cause, namely God.
9Problems with the Kalam Cosmological Argument
- Modern physics recognizes that some events have
no cause. - The big bang could have been the result of a
prior big crunch either in this universe or
some other.
10Thought Probe Why a Universe?
- God is eternal, but the universe seems to be only
about 15 billion years old. - Why, after an eternity of time had passed, did
God decide to create a universe?
11Teleological Arguments for the Existence of God
- Teleological arguments for the existence of God
try to derive the existence of God from the
design or purpose of things.
12Thought Experiment Paleys Watch
- Suppose you were walking across a meadow and came
across a watch. - Could you believe that the watch had always been
there? - Wouldnt it be more reasonable to believe that
someone had designed it for the purpose of
keeping time?
13The Analogical Design Argument
- The universe resembles a watch.
- Every watch has a designer.
- Therefore, the universe probably has a designer,
namely, God.
14Problems with the Analogical Design Argument
- If God needs a universe to accomplish his ends,
he is not omnipotent. - Even if there is a designer, it need not have any
of the other attributes traditionally associated
with God, such as omniscience or omnibenevolence. - The universe is as much like a living thing as a
mechanism and living things reproduce without
need of an external agent.
15The Best-Explanation Design Argument
- The universe exhibits apparent design.
- The best explanation of this apparent design is
that it was designed by a supernatural being. - Therefore its probable that the universe was
designed by a supernatural being, namely, God.
16Problems with the Best-explanation Design Argument
- Apparent design can also be explained by
evolution. - Evolution is a better explanation than the
God-hypothesis because it is simpler, more
conservative, has greater scope, and is more
fruitful.
17Intelligent Design
- If there were structures that were so complex
that they could not possibly have evolved through
natural selection, there would be reason to
believe that evolution was false. - Michael Behe, a Lehigh University biochemist,
claims to have found such structures. - However, most biologists reject the notion that
the parts of an irreducibly complex system could
not have evolved independently of that system.
18Thought Probe Intelligent Design
- Suppose that life on Earth is the result of
intelligent design. Some hypothesize that God was
the intelligent designer, and others hypothesize
that aliens were the intelligent designers. - Which hypothesis the God hypothesis or the
extraterrestrial hypothesis is the better
explanation? - Which hypothesis does better with respect to the
criteria of adequacy?
19Fine-Tuning
- Many people believe that the remarkable
fine-tuning of many of the universes physical
properties lends credibility to the notion that
it was designed. If certain physical properties
were slightly different then we wouldnt exist. - However, this fine-tuning needs to be explained
only if its possible for the universe to be
tuned differently than it is.
20Thought Probe Human Design Flaws
- From an engineering point of view, human beings
do not seem to be very well-designedwe get
bulging disks, fragile bones, torn ligaments,
varicose veins, cataracts, hearing loss, etc. - Is this evidence against an intelligent designer?
21Miracles
- Miracles are a violation of natural law by a
supernatural being.
22The Argument from Miracles
- There are events that seem to be miracles.
- The best explanation of these events is that they
were performed by a miracle worker. - Therefore, there probably is a miracle worker,
namely, God.
23Thought Probe Parting the Red Sea
- An oceanographer and a meteorologist have shown
that the Red Sea could have parted naturally as a
result of a wind of the sort described in the
Bible. - Does this undercut the notion that it was parted
by God? Why or why not?
24Problems with the Argument from Miracles
- The miracle worker may not have any of the
properties traditionally associated with God. - Something may seem to be a miracle simply because
we are unaware of the natural laws at work.
25Thought Probe Jesuss Miracles
- Many of the miracles associated with Jesus were
of the same kind performed by magicians of his
day. - Origen claimed that they would have been
fraudulent if used to make money but Jesus used
them to inspire religious awe. - Is Origens reasoning cogent? Why or why not?
26Thought Probe The Fivefold Challenge
- Five miraculous events recorded in the Bible are
unconfirmed by archaeology - (1) the parting of the Red Sea, (2) the stopping
of the Sun, (3) the reversal of the suns course,
(4) the feeding of thousands, (5) the
resurrection of saints. - Is the fact that they are unconfirmed reason to
believe that they didnt occur?
27The Argument from Religious Experience
- People have experiences that seem to be of God.
- The best explanation of these experiences is that
they are of God. - Therefore, its probable that God exists.
28Thought ProbeReligious Experience
- Michael Persinger has discovered that religious
experience can be generated by activating the
temporal lobes of the brain. - Does the fact that religious experience can be
produced electronically undercut the claim that
they are produced supernaturally? Why or why not?
29Problems with the Argument from Religious
Experiences
- Religious experiences can be explained as the
result of abnormal states of consciousness
brought on by drugs, meditation, sensory
deprivation, etc. - These explanations are better than the God
hypothesis because they are simpler, more
conservative, more fruitful, and have more scope.
30Anselms Ontological Argument
- God, by definition, is the greatest being
possible. - If God exists only in our minds, then it is
possible for there to be a being greater than
God, namely a being like God that exists in
reality. - But it is not possible for there to be a being
greater than God. - Therefore, God must exist in reality.
31Thought Experiment Gaunilos Lost Island
- Consider the most perfect island imaginable.
- If it only existed in our minds, it wouldnt be
the most perfect island imaginable. - Therefore, it must exist in reality.
32Existing in the Understanding
- To say that something exists only in the
understanding is to say that the concept of the
thing doesnt apply to anything in reality. - Contrary to what Anselm would have us believe,
this doesnt involve a contradiction.
33Descartess Ontological Argument
- God, by definition, possesses all possible
perfections. - Existence is a perfection.
- Therefore, God exists.
34Thought Experiment Edwards Gangle
- Suppose someone discovers a new animala
ganglethat has eleven noses, seven blue eyes,
bristly hair, sharp teeth and wheels in the place
of feet. - Suppose now that someone says that, in addition,
gangles exist. - Do we learn something new about the nature of
gangles?
35Problems with the Ontological Argument
- Existence is not a property of things.
- Existence is not a perfection. (Its not always
better to exist than not to exist.) - The first premise of Descartess argument should
read If God exists, then He possesses all
possible perfections. - The conclusion, then, would be If God exists,
then He exists.
36Thought ProbeOne More God
- By some estimates, humans have worshipped more
than three thousand different gods throughout
history. - So monotheists dont believe in thousands of
other gods. - The difference between atheists and monotheists,
then, is that atheists believe in one less god
than monotheists. - If monotheists are rationally justified in not
believing in thousands of other gods, are
atheists equally justified in not believing in
the god of the monotheists? Why or why not?
37Thought Experiment Pascals Wager
- If you wager that God exists, and He does, you
win everything. - If He doesnt, you lose nothing.
- So you should wager that God exists.
38Thought ProbeThe Best Bet
- Herb Silverman claims that if God exists, He
would prefer to be with intelligent, honest,
rational people who base their beliefs on
evidence rather than faith. - So he proposes Silvermans wager If God does
not exist, one will lose nothing by not believing
in Him, while if He does exist, one will lose
everything by believing. - Is this a better bet than Pascals?
39Problems with Pascals Wager
- God may not care whether people believe in Him.
- God may punish those who believe on purely
selfish grounds. - God may not like gamblers.
- It may not be true that we lose nothing by
believing in God.
40Thought ProbeAlien Religion
- Suppose that we are visited by aliens from outer
space and find that they have no religion and
have never heard of any of the gods worshipped by
humans. - Would this undermine the credibility of our
religions? - Would it be appropriate to try to try to
evangelize the aliens and convert them to one of
our religious? Why or why not?