The Design Argument (AQA A-Level Religious Studies): Revision Notes
The Design Argument
Introduction
The Design Argument, also known as the Teleological Argument, suggests that the universe shows evidence of purposeful design, pointing to the existence of a designer - God. This is one of the classical arguments for God's existence that relies on observation and reasoning about the natural world.
The term 'teleological' comes from the Greek word telos, meaning end or purpose. This argument is called teleological because it argues from the observation of purpose and regularity in nature to the intentional design of a divine Creator.
Key figures:
- William Paley (1743-1805) - developed the famous watch analogy
- David Hume (1711-1776) - Scottish philosopher who critiqued design arguments
The nature of Paley's argument
A posteriori reasoning
Paley's argument is a posteriori, meaning it relies on sense experience. We observe the world through our senses (sight, hearing, touch, taste, smell) and draw conclusions from what we perceive.
This differs from a priori arguments, which rely purely on logic and reason without needing observation.
Inductive reasoning
The argument is inductive. Inductive reasoning uses premises to provide strong evidence for a conclusion, making it probably true rather than certain.
Example of Inductive Reasoning:
Consider this reasoning process:
- All cats I have observed have fur
- Tomorrow I am going to Canada
- Therefore, the cats I see in Canada will probably have fur
This conclusion is probable but not certain - as shown by the later development of hairless cat breeds like the Canadian Sphynx.
Implications for the Design Argument:
Since Paley's argument is both a posteriori and inductive, his conclusion that the universe was designed is at best probably true. It might turn out to be false. The argument cannot provide absolute certainty.
Paley's three key observations
Paley based his argument on three particular observations about the natural world:
1. Complexity
Paley examined the intricate complexity of:
- Biological organisms and organs (especially the eye)
- The laws of nature governing everything
2. Regularity
He observed patterns such as:
- The regular orbits of comets, moons and planets
- The predictable cycle of seasons
3. Purpose
From observing human-made machines, Paley inferred they are built for a purpose. The complexity and regularity of a watch indicates it has a purpose, even if we don't know what that purpose is. Similarly, the complexity and regularity of the world implies the world also has a purpose.
Paley's summary argument
From these observations, Paley formulated his Design Argument:
Paley's Core Argument:
- Some objects in the world clearly show they were designed because they exhibit complexity and regularity, from which we infer they were made for a purpose
- The universe appears to exhibit complexity and regularity, from which we can infer it was made for a purpose
- Therefore, it is likely the universe was designed
In summary, Paley argues inductively from what we observe (the appearance of design) back to the supposed cause (God as designer).
The watch analogy
Paley's most famous illustration is the watch analogy, presented in his work Natural Theology (1802).
The stone vs the watch
Paley imagines crossing a heath and finding two objects:
The stone:
- If asked how it came to be there, one could reasonably answer it had always been there
- This wouldn't be absurd
The watch:
- If asked how it came to be there, one could not reasonably answer it had always been there
- Upon inspection, the watch reveals complex parts working together for a purpose
Why the watch is different
When examining the watch, we discover:
- It contains brass (selected for its elasticity and anti-rust properties)
- The face is covered with glass (to protect the mechanism and allow the time to be read)
- Internal gears and cogs create regular movement
- If any part were different in size or shape, the mechanism would fail
- The movement has an obvious purpose: to tell the time
From the watch's existence and properties, we can infer the existence of a watchmaker. The watch's complexity, regularity, and purpose all point to intelligent design rather than chance arrangement.
Paley's responses to objections
Paley anticipated counter-arguments:
Objection 1: What if the watch is broken? Even a broken watch would still show evidence of design.
Objection 2: What if we can't work out what all the parts do? This doesn't negate the evidence of design.
Objection 3: Maybe there's a principle of order that arranged the parts? Paley rejects this as nonsense - watches require the intelligence of a watchmaker, not an abstract principle.
Objection 4: Maybe we're ignorant about watches? Paley argues we know enough to understand the watch was designed.
Paley's analogy structure
Paley transfers his inference about watches to the universe:
- A watch has complex parts, each with a function, working together for a specific purpose
- Therefore, the watch must have been designed by a watchmaker
- Similarly, the universe has parts that function together for a purpose
- Therefore, the universe must have been designed by a universe maker
- The universe is far more wonderful than a watch, so its designer is much greater than any human designer
- The universe designer is God
Paley's conclusion:
Every indication of design which existed in the watch exists in the works of nature, but to a greater degree. The mechanisms of nature surpass human creations in complexity, subtlety and sophistication.
Examples from nature
Paley provided detailed examples of apparent design:
The eye:
- Superbly adapted for vision in all creatures
- Has all the right parts in the right arrangement to achieve its purpose
- Just as a watch has the right parts to tell the time
Fish:
- Have fins and gills perfectly adapted for living in water
Birds:
- Have feathers, bones and wings perfectly adapted for flight
Heavenly bodies:
- The stars, planets and comets show awe-inspiring regularity in their orbits
- Paley considered these the grandest of God's works
The Teleological Argument
Why "Teleological"?
The term 'teleological' comes from the Greek word telos, meaning end or purpose. The Design Argument is also called the Teleological Argument because it argues from purpose and regularity in nature to the intentional design of God.
David Hume's criticisms
David Hume was a Scottish empiricist philosopher and sceptic who critiqued design arguments in his Dialogues Concerning Natural Religion (1779), published 26 years before Paley's Natural Theology.
Important Points:
- Hume died in 1776, so could not have been commenting on Paley specifically
- Many of Hume's criticisms apply remarkably well to Paley's later argument
- Paley was aware of Hume's work but chose not to respond directly
Three common errors to avoid
Common Mistakes to Avoid:
- Don't assume Hume was commenting on Paley - Hume's work came first
- Don't assume Paley was unaware of Hume - Paley had read Hume's Dialogues
- Don't memorise Hume's objections parrot-fashion - understand them fully rather than listing them
Hume's main criticisms
1. No evidence the designer is the God of Christian theism
Even if we accept the universe was designed, there's no evidence this was done by the all-powerful, all-knowing, all-loving God of Christianity. A lesser being could have designed the universe.
Hume's principle: A cause must be proportional to its effect. A wise person proportions their belief to the evidence.
Example: The Orchestra in the Corridor
If you hear an orchestra in the corridor, the cause might be:
- (a) A full symphony orchestra sitting there
- (b) Someone with a powerful music player
Although (a) is possible, (b) is all you need to account for what you hear. Similarly, although an all-powerful God could have designed the universe, a lesser being would be sufficient to explain what we observe.
Hume's exploration of limited designers:
The designer might have a physical body:
- Wherever we find intelligent minds, they're attached to physical bodies
- No obvious reason to suppose the designer is a metaphysical being
- Perhaps the designer has eyes, ears, nose and mouth
- The designer might be mortal and have died long ago
There might be multiple designers:
- Design is normally a feature of teamwork
- We cannot tell how many beings might have designed the world
- The universe could have been designed by a team of junior gods working by trial and error
Many worlds might have been botched and bungled throughout eternity before this system was struck out. Much labour lost, many fruitless trials made, and a slow but continued improvement carried on during infinite ages in the art of world-making.
2. Evil and imperfection suggest a limited designer
Hume noted that Epicurus' questions about evil remain unanswered.
The Inconsistent Triad:
- God is omnipotent (all-powerful)
- God is omnibenevolent (all-loving)
- Evil exists
These three statements cannot all be true simultaneously if God exists.
Hume's challenge:
- Is God willing to prevent evil but not able? Then he is impotent
- Is he able but not willing? Then he is malevolent
- Is he both able and willing? Then why does evil exist?
Evidence from the world:
- The long catalogue of ailments afflicting humans and animals
- This is not what we'd expect from a being of infinite power, wisdom and goodness
- Perhaps the universe was designed by an infant god or a senile god
- Instead of addressing these problems, theologians invent theodicies to excuse God's behaviour
3. The universe is more like a vegetable than a machine
The world resembles a vast organism that grows itself, apparently without needing a designer.
Link to Evolution:
Hume seems to anticipate Darwin's theory of evolution. In the view of most evolutionary biologists, evolution is not directed by any external agent such as God. Nature designs itself without God's involvement.
4. The analogy is anthropomorphic
To make an analogy between human designers and the universe designer is anthropomorphism - explaining the universe in our own image.
Hume's argument:
- To know the universe is designed, we'd need experience of how universes are made
- We have no experience of universe-making
- Our experience of design is limited to machines we design ourselves
- We're essentially imagining God to be like a human designer
- This is extremely anthropomorphic
- We cannot apply our limited experience of life on Earth to the universe as a whole
5. The universe could have developed by chance
This is Hume's Epicurean Hypothesis.
Epicurus' view:
- The basic constituents of the world are indivisible atoms
- Given infinite time, atoms would inevitably arrange themselves into an ordered state
- The appearance of design in the world could result from chance rearrangement of atoms
- This is at least as likely as the universe being designed by God
Modern Support:
Twenty-first century multiverse theory suggests there are vast numbers of universes. If true, some universes will be chaotic, some semi-ordered, and some highly ordered - all purely by chance. This wouldn't disprove God but would support Hume's view that we can explain this universe without appealing to God.
Strengths and weaknesses of Paley's argument
Weaknesses
1. The designer might not be the God of Christian theism
Even if the universe was designed, the all-powerful God of Christianity is a greater cause than needed to account for the design. The universe could have been produced by:
- A team of lesser beings
- Designers who 'botched and bungled' it
2. The existence of evil undermines the argument
Evil occurs on a cosmic scale:
- Supernova explosions would irradiate any nearby civilisation
- The sheer amount of evil in our world alone is difficult to reconcile with a good designer God
This raises serious questions about whether an all-loving, all-powerful God could be the designer Paley describes.
3. Evolution supports Hume's vegetable analogy
Evolution shows that nature designs itself without needing God.
Richard Dawkins' view:
- Paley was 'gloriously wrong'
- The heavens are utterly and blindly indifferent to humanity
- If there was a watchmaker, it's evolution, not God
- Evolution is indifferent to our opinions
- The universe has no purpose, no designer, and no plan
4. Our ideas are anthropomorphic
As Hume argued:
- We have no experience of universe-making
- Our ideas about it come from our own limited experience
- We impose these ideas on the universe
- The design is in our minds, not in the world
5. Multiverse theory supports chance over design
If nature can design itself, as Hume argues and evolution supports, then the universe probably designed itself originally. Multiverse theory suggests there could be so many universes that some will appear designed even though they're not. This could be one such universe.
Strengths
1. The Christian God is the simplest explanation
Richard Swinburne's Argument:
Against Hume, Swinburne claims that the existence of an all-powerful God is a simpler, and therefore better, explanation of the appearance of design.
Simplicity is always evidence for truth.
2. Evil may be unavoidable for God to bring about good
Paley argued that evil might be necessary for greater goods.
Supporting arguments:
The Free Will Defence: Freedom to choose between highest goods and highest evils means such goods and evils must exist in the world.
Process Theology: God is all-loving but not all-powerful, so cannot prevent all suffering.
The Irenaean-Hick theodicy: Evil is 'soul-making' - without evil, we could never learn to love the good.
Key Point: The important issue isn't whether one particular explanation is right, but that Paley's argument that evil may be unavoidable could be correct.
3. Evolution doesn't destroy the Design Argument
Two responses to evolutionary challenges:
Swinburne's response:
- Evolution explains nothing
- It's regulated entirely by the laws of physics, biology and chemistry
- Those laws don't explain themselves
- We need to ask where the laws of nature come from
- In Swinburne's view, they come from the God who designed them
Counter-consideration:
Can we really approve of or believe in a God who uses evolution - with all its suffering, barbarity and cruelty - as his design method?
4. The designer is reasonably concluded to be metaphysical
Paley draws the conclusion that the designer is metaphysical and transcendent (existing above the space-time universe). This seems reasonable because:
- It would be impossible to design such a system from the inside
- The designer must exist beyond the universe
- We haven't imagined the laws of nature or imposed them on the world
- Science only works because these laws exist
- They could only have come from an external source: God
5. The Anthropic Principle supports design
The Anthropic Principle is a modern form of the Design Argument.
Key Points:
- 'Anthropic' means relating to humans
- There are 30 or more 'boundary conditions' (also called 'cosmological constants')
- Examples: the 'stickiness' of gravity, the expansion rate of the Big Bang
- These must be 'fine-tuned' for an ordered universe containing intelligent life to develop
- The odds against all boundary conditions being at exactly the right settings are roughly to 1
- If this is the only universe, something must have designed it to bring about intelligent beings like us
Caution: We don't know how many universes may exist. If the number is far greater than , this universe could appear designed but not be. Also, the fact that we result from the way the universe is (and therefore are adapted to it) isn't evidence there was a purpose behind it.
6. The argument's simplicity is a strength
The argument is based on induction - on what we observe. What we observe does have the appearance of design. Even Immanuel Kant, who didn't accept the Design Argument as proof of God's existence, acknowledged it's powerful because the order in the heavens filled him with awe.
Mathematical Patterns in Nature:
Some argue the strongest indication of design is that nearly everything has a mathematical description, such as:
- Logarithmic spirals
- Fibonacci numbers
These appear throughout nature and might indicate an underlying design principle.
The status of Paley's argument as a 'proof'
The term 'proof' can mean different things depending on context.
1. Sufficient evidence for truth
Proof can mean there's sufficient evidence to show something is true.
Examples of "Sufficient Evidence":
- A receipt is generally taken as proof of purchase (though you might have found it in a bin)
- A jury verdict of innocence is taken as proof (though you might be guilty with a good lawyer)
In such cases, evidence can usually be taken as sufficient, even if not 100% certain.
2. Inductive proof
Characteristics of inductive reasoning:
- Uses reasoning to show the truth of a conclusion
- Argues from observations back to a supposed cause
- Conclusions are probably true, not certain
- Gives us new knowledge
Example of Inductive Proof in Science:
'Water boils at 100°C at sea level' is an inductive scientific truth. There's no absolute guarantee it will always be true, but for practical purposes our observations are taken as scientifically true. The test is repeatable and verifiable.
Inductive arguments can be very powerful in science and can have the status of proofs. We use them to uncover scientific laws.
3. Paley's argument as inductive
Paley's Design Argument is inductive, but its evidence doesn't amount to scientific proof because:
We Cannot Clearly Assess Its Probability:
Whatever evidence from Paley we use, some will reject it in favour of Hume's view that the universe orders itself.
Example challenges:
Paley's evidence about heavenly body regularity: Not strong evidence for God, since gravity moves heavenly bodies, and gravity is just part of how matter behaves.
Paley's evidence about design in nature: Not very convincing to scientists, since multiverse theory suggests what we see as designed might be the product of pure chance.
4. Best explanation?
Nevertheless, Paley's inductive argument could be the best explanation of the order we see.
Two general explanations for the universe's existence:
- It made itself - its orderliness has no explanation beyond itself
- Something made it - its orderliness shows the maker's design
Which is the best explanation? This is a matter of personal preference:
- For Hume, there might be several designers
- For believers in God, a single all-powerful designer is most obvious
- For those undecided, Paley's argument could offer sufficient proof
5. Proof through religious experience?
For some believers, proof could only come through religious experience - a psychological certainty that they had experienced God (like in a near-death experience). However:
- This kind of proof cannot be transferred from one person's brain to another
- Even if everybody believed in a designer God, this wouldn't prove there is one
6. Not a deductive proof
Key Distinction:
Deductive proof:
- If the premises are true, the conclusion must logically be true
- Provides logical certainty
- Example: the Ontological Argument attempts this
Inductive argument:
- Based on observation
- Can never be 100% certain
- Observations might be incorrect or might change
- At best, probably true
Paley's argument is inductive, so can never be logically certain proof of God's existence. At best, it is probably true.
The relationship between reason and faith
Defining the terms
Reason: The rational part of the human mind - using logic, establishing facts, reaching conclusions, making judgements, and supporting judgements with reasons.
Faith: Having trust or belief in something or someone (such as God).
Different views on the relationship
1. Belief in God is unreasonable
The argument:
- Belief in God concerns a being who by definition cannot be investigated by science
- Truth is what we can know through science and our senses
- God cannot be known in this way
- Therefore, belief in God is unreasonable
Counter-argument:
- A hypothesis is an explanation based on limited evidence
- There are conflicting scientific hypotheses for the universe's origin
- A complete solution may remain beyond our grasp
- The idea of an intelligent designer is a hypothesis
- The evidence: conscious beings like us suggest an intelligent Creator
- This may or may not be true, but it's a rational hypothesis
- Belief in such a being is neither unscientific nor irrational
2. Faith is the only source of certainty (Fideism)
Fideism literally means 'faith-ism'.
Fideist views:
- In matters of religion, faith is all-important, not reason
- Faith is about passionate commitment
- People are fully justified in believing something through personal experience
- They can believe in God with absolute passionate conviction
- That certainty can never be experienced through reason alone
Criticisms of Fideism:
- If someone is convinced their faith entitles them to torture others, fideism might justify torture on religious grounds
- The 'Great Pumpkin' objection: Like Linus in Peanuts who sincerely believes in the Great Pumpkin year after year despite it never appearing, fideism can justify believing in anything
- Should we not expect some rational justification for our beliefs, however sincere?
3. H.H. Price's distinction: 'belief in' vs 'belief that'
H.H. Price identified a middle ground.
Key distinction:
- 'I believe that God exists' (belief that)
- 'I believe in God' (belief in)
Price's point:
Surely belief 'in' is an attitude to a person, whether human or divine, while belief 'that' is just an attitude to a proposition. Could any difference be more obvious?
Belief in God is Both Interested and Disinterested:
Interested belief:
- The believer can hope for benefits from that belief
- It's a good thing for the believer that God is loving, compassionate and merciful
- God answers prayers, gives grace, is a refuge in trouble
- Nothing could be more advantageous than God's existence
Disinterested belief:
- It's a good thing in its own right that God exists
- Just as friendship is good for its own sake
- It's intrinsically good - good for its own sake
- God is 'the fundamental good thing without which there would be no others'
Contrast with 'belief that': Merely believing that God exists is nothing more than accepting a proposition. You can believe that God exists (rather than not existing) without any sense of the value found in belief in God.
Conclusion: Reason has value in how we talk about God, but faith is the vehicle through which we value God as 'the fundamentally good thing'. Faith cannot be reduced to mere acceptance of a proposition.
4. Faith and reason work together
Pope John Paul II's view: In his Encyclical Letter Fides et Ratio (Faith and Reason), the Pope argued that:
- Truth is known by a combination of both faith and reason
- The absence of either diminishes humanity's ability to know itself, the world and God
- Nothing in faith excludes reasoned evidence for what is believed
- Nothing in reason excludes faith
The value of Paley's argument for religious faith
1. It supports faith through reasoning
Natural theology is the view that God's existence can be seen in nature through observation and reasoning, without special revelation.
Paley's argument supports this view:
- The argument cannot prove God's existence
- But it demonstrates that theologians and philosophers can use reason and observation to talk rationally and meaningfully about God
- This is clear support for religious faith
2. Part of the defence against atheism
The argument structure:
- Atheist claim: Religion is unreasonable because religious faith is just idle speculation
- Counter: Atheists have no more evidence that God doesn't exist than theists have that he does
- Therefore: The atheistic view that faith is idle speculation is itself just idle speculation
- Conclusion: If atheists can reasonably speculate 'God does not exist', then it's reasonable for theists to speculate God does exist
Applied to Paley:
- There's nothing obscure or hard to understand about Paley's argument
- It's a reasonable claim that God exists
- It's a reasonable hypothesis and possible interpretation of the evidence
- Science and religion can be seen as two different frames of reference looking at the same data
3. Provides a simple basis for belief
For those unsure what to believe, the simplicity of Paley's argument could provide a basis for belief. Moreover, belief in God doesn't depend just on the Design Argument - the Cosmological Argument is also a powerful support for belief in God.
4. Faith doesn't depend on proof
Some argue Paley's Design Argument has no value for faith because:
- Faith doesn't depend on proof or probability
- Faith depends on commitment to God and a religious way of life
5. Supports both 'belief in' and 'belief that'
Using H.H. Price's distinction:
- Paley's argument provides evidence for belief that God exists
- It also comments on the wondrous nature of the universe's design
- This suggests support for belief in God
What kind of God are we left with?
Criticism of the Design Argument raises important questions about God's nature:
Critical Questions About God's Nature:
If evolution is part of God's design:
- We're left with a God who doesn't care about the immense suffering evolution causes
- How would Christian belief cope with a God who isn't all-loving?
Process theology's response:
- God cannot eliminate such suffering because he isn't omnipotent
- How would Christian belief cope with a God who isn't all-powerful?
Deist view:
- God designed and created the world, then left it to its own devices
- What happens is in the hands of beings who control it - ourselves
- No miracles, no personal revelation through scripture or religious experience
- How would Christian belief cope with a God indifferent to humans?
Important note: These aren't claims that any of these possibilities is truly the case. They're suggestions that Christians should think seriously about God's nature, since traditional answers don't seem to give consistent responses.
Exam tips
Understanding vs Memorising:
- Don't learn Hume's objections parrot-fashion
- Questions ask for explanation, not summary
- Engage fully with fewer objections rather than listing all without understanding
Key areas to focus on:
- The watch analogy and why it works
- The distinction between a posteriori and a priori
- The difference between inductive and deductive arguments
- How Hume's criticisms apply to Paley's specific argument
- The relationship between reason and faith
- Whether the argument is a 'proof'
Consider both sides:
- Always evaluate strengths and weaknesses
- Consider whether evolution destroys or supports the argument
- Think about what kind of God the argument actually demonstrates
Remember!
Key Points to Remember:
- The Design Argument is a posteriori (based on observation) and inductive (probabilistic, not certain)
- Paley's three observations are complexity, regularity and purpose in nature
- The watch analogy demonstrates that complex, regular, purposeful objects require a designer
- Hume's main criticisms: limited designer, problem of evil, anthropomorphism, chance, and the vegetable analogy
- The argument cannot be a deductive proof but could be the best explanation for the universe's existence
- Faith and reason can work together - natural theology uses both
- The argument has value for religious faith by showing belief in God can be rational and evidence-based