1.3 - arguments from observation Flashcards
natural theology
the name given to attempts to demonstrate the existence of God and to demonstrate the nature of God through the powers of human reason.
revealed theology
a reflection on the content of what is believed to have been shown to humanity by God.
‘For since the creation of… being understood..’
‘For since the creation of the world God’s invisible qualities - his eternal power and divine nature - have been clearly seen, being understood from what has been made, so that people are without excuse.’ - Paul in Romans, 1:19-20, NIV
‘In the Beginning…’
‘In the Beginning God created the heavens and the Earth.’ - Genesis 1:1
are the teleological and cosmological arguments a-posteriori or a-priori? why?
The teleological and cosmological arguments are a-posteriori because they use observation to come to conclusions rather than having innate, pre-existing knowledge.
Teleological - observing the world’s complexity.
Cosmological - observing cause and effect.
‘[The teleological argument] always deserves to be…’
‘This proof always deserves to be mentioned with respect. It is the oldest, the clearest and most accordant with the common reason of mankind.’ - Kant
teleological argument
a-posteriori argument, Aristotle, Aquinas, Paley
1. the world has order, purpose, benefit, regularity, and suitability for life
2. this shows evidence of design
3. such design implies a designer
4. the designed of the world is God
problems with the teleological argument
- inductive leap to God
- chance is a sufficient explanation - Brute Fact
- not enough evidence
- problem of evil
- chaos (cancer)
St Thomas Aquinas
- teleological argument (design argument)
- five ways to prove God’s existence - 13th century
- the 5th way is most significant (nature has purpose, arrow-archer analogy)
five ways to prove God’s existence (13th century) - 5th way
- Aquinas said that nature seems to have an order and purpose to it.
- We know, he suggested, that nothing inanimate is purposeful without the aid of a ‘guiding hand’ (eg. an archer shooting an arrow).
- non-rational beings work towards a goal so must be guided by an intelligent being - as the arrow is guided by the archer - and this being is God.
‘We see that things which lack knowledge, such as natural bodies, act for an end […] whatever lacks knowledge cannot move towards an end, unless it be directed by some being endowed with knowledge and intelligence; as the arrow is directed by the archer… and this we call God.’ - Thomas Aquinas, Fifth Way
‘We see that things which… Hence it is plain that they… unless it be directed…’
‘We see that things which lack knowledge, such as natural bodies, act for an end […] Hence it is plain that they achieve their end not fortuitously, but designedly. Now whatever lacks knowledge cannot move towards an end, unless it be directed by some being endowed with knowledge and intelligence; as the arrow is directed by the archer… and this we call God.’ - Thomas Aquinas, Fifth Way
argument from evolution
- Life adapts to suit its environment through natural selection.
- This gives the appearance of design as life perfectly adapted to survive through change.
- Therefore, Aquinas is mistaken to conclude nature cannot ‘direct’ itself towards an end (not God but survival).
- Organisms aren’t moving towards one end, they are moving in all directions and the ones that do move towards the end, survive. (billions arrows fired)
richard dawkins’ view on Aquinas’ fifth way
Richard Dawkins attempts to undermine the teleological view of the world by comparing this way of thinking to the thinking of a puddle being surprised at how remarkable it is that a perfectly sized hole in the ground was waiting for it to exist.
what does it mean to say the design argument is inductive
- it seeks to persuade rather than prove
- inductive leap
design qua purpose
one type of design argument that:
- argues FROM examples in nature that show purpose
- teleological
- uses analogy eg. Paley
design qua regularity
one type of design argument that:
- argues by looking at the way the universe as a whole has purpose
- ‘providential arguments’
- use probability eg. the anthropic argument (goldilocks enigma)
who was William Paley?
- Christian apologist so wrote to defend Christianity
- natural theology (1802)
- watchmaker theory
- design argument
William Paley’s analogy
- coming across a rock on a heath - they would naturally conclude that the rock had probably always lain there and did not have a designer.
- but if it was a watch, they would conclude - he argued - that someone must have made the watch
- he distinguished between simple and complex things with a number of criteria, the watch is complex so must have a designer
- compared the watch to the human eye
- because of the principle that like effects have like causes, we should conclude that since the human eye fulfils the same criteria (IE they share similar effects) we should assume they have a similar cause
- so both the watch and the eye have been designed
how did Paley distinguish between simple and complex things
- made of specific materials
- it has several parts
- works for a purpose
- produces a regular motion
- if any of the parts were different in a significant way, the object would not fit its purpose
‘Every manifestation of…’
‘Every manifestation of design, which existed in the watch, exists in the works of nature… For this reason that when we come to inspect the watch we perceive that its several parts are framed and put together for a purpose.’ - Paley, Natural Theology, 1802
‘The hinges in the wings… We have no reason to…’
‘The hinges in the wings of an earwig, and the joints of its antennae, are as highly wrought, as if the Creator had nothing else to finish. We see no signs of diminution of care by multiplicity of objects, or of distraction of thought by variety. We have no reason to fear, therefore, our being forgotten, or overlooked, or neglected.’ - William Paley
the anthropic principle
The idea that the universe seems particularly suited to bring about and support human life. This is a modern version of the Design Argument, building on Richard Swinburne’s concept of regularity. This is linked to cosmic fine-tuning.
- Tennant (1930): RUM
‘As we identify the many…’
‘As we identify the many accidents of physics that have worked together to our benefit, it seems as if the Universe [knew] we were coming’ - Dyson
‘Nature is meaningless…’
‘Nature is meaningless and valueless without God behind it and Man in front.’ - Philosophical Theology by FR Tennant (1930)
Goldilocks principle
- Paul Davies
- any small chance would have made life impossible eg. the big bang.
- The Big Bang could, logically, have been smaller or bigger (either in matter or explosion) but for stars to form, the initial strength of the Big Bang had to be precise to one part in 1060.
- That’s as precise as hitting a one inch target at the other side of the observable universe.
- for life to form makes it even more improbable.
- The fact that everything is perfectly adjusted so life can exist seems a staggering coincidence.
- Science can’t tell us why the Big Bang was exactly the way it was.
RUM points
- Tennant:
R - rationality
U - unlikely
M - man
rationality (RUM - Tennant)
- life and the world is all about being rational, to Tennant it is rational that God is the designer and creator
- However, this is debatable, others have claimed they have also used logic and their conclusion is that there is NOT a God
unlikely (RUM - tennant)
- it just seems too unlikely that the world has come about by chance: it is 1:100000000000124 that the Big Bang could have occurred and even more so that we end up how we are
- so it all came about by design
- However, chance could still be an explanation for this
man (RUM - tennant)
- according to Tennant, brute laws of nature would not alone have shaped man into what he is today: consciousness, self awareness, ethics, morality and the fact we act in ways against our basic nature, religion, love, self-sacrifice, aesthetic sense, awe
- this suggests it is more than just scientific survival of the most ruthless and fittest model and implies divine assistance
- However, it is rather arrogant to claim that all creation is only for man and his benefit. There mat well be a greater cause we haven’t yet discovered
Micheal Behe
a biochemist, is one of the many scientists/thinkers struck by the ‘irreducible complexity’ of the systems and organs of living creatures
irreducible complexity definition
a single system which is composed of several interacting parts that contribute to the basic function, and where the removal of any one of these parts causes the system to effectively cease functioning’.
Behe’s example of irreducible complexity
tail in a bacterium
- he argues that evolution couldn’t produce such an organization of parts:
= evolution works by making small changes, accidentally, and one at a time
= until all the pieces are in place together, the tail wouldn’t work. It’s all or nothing. But evolution is bit by bit.
- like Paley, Behe argues that irreducible complexity is direct evidence of design. If a system won’t work at all until all its parts are in place, then this suggests someone planned and organized the parts.
rejections of Behe’s argument
- it assumes that each part in a system has always been that part in that system. But this isn’t true in evolution, parts often had a different purpose but evolved into being part of that new specific system
- features that are initially minor improvements can become essential. Take lungs – very complex and without which we wouldn’t survive. But they started out as relatively unimportant air bladders in fish
design argument evaluation - 3 key positives
+ supported by revealed theology so coheres with a traditional, theistic view of the world – even Dawkins acknowledged that current understandings don’t fully explain the universe: ‘one of the greatest challenges to the human intellect has been to explain how the complex, improbable appearance of design in the universe arises’ - Dawkins, The God Delusion
= However, he also argued that ‘the temptation to attribute the appearance of design to an actual design is a false one’ - Dawkins, The God Delusion
+ confirms the purpose of the world, fulfils human need for explanation.
+ rooted in universally accepted observations like that the world is complex, the more we learn the more this is supported
‘With such signs of forethought in the design of living creatures, can you doubt they are the work of design?’ - Socrates
‘The analogy of animals to…’
‘The analogy of animals to complex machines seems to me correct, and its conclusion justified’ - Swinburne
‘With such signs of…’
‘With such signs of forethought in the design of living creatures, can you doubt they are the work of design?’ - Socrates
‘one of the greatest challenges to the human intellect has…’
‘one of the greatest challenges to the human intellect has been to explain how the complex, improbable appearance of design in the universe arises’ - Dawkins, The God Delusion
design argument evaluation - negatives
- evolution and the idea that we are fine-tuned for the universe not the other way round (puddle - dawkins)
- ‘the temptation to attribute the appearance of design to an actual design is a false one’ - Dawkins, The God Delusion
= Swinburne - ‘I do not deny that science explains, but I postulate God to explain why science explains’)
- ‘the temptation to attribute the appearance of design to an actual design is a false one’ - Dawkins, The God Delusion
- anthropomorphism (guilty of making the designer to be more or less a human figure), Hume’s ship builder argument
- the scales argument (detailed separately)
- inductive leap to God, swans example - not enough evidence
= we don’t have to understand all parts of a watch to believe there is a designer
- inductive leap to God, swans example - not enough evidence
- chance is a sufficient explanation - Brute Fact, order can come from chaos (Epicurus)
- multi-verse theory
- problem of evil and chaos (cancer)
- ‘Nature has no vision, no sight at all. If it can be said to play the role of the watchmaker in nature, it is the blind watchmaker.’ - Richard Dawkins
= the problem of evil can be answered by saying that just because something goes wrong doesn’t mean that there is no designer or that God is imperfect
- ‘Nature has no vision, no sight at all. If it can be said to play the role of the watchmaker in nature, it is the blind watchmaker.’ - Richard Dawkins
- poor analogy argument - large vegetable would be a better comparison
David Hume’s criticisms of the design argument
note that Hume was writing BEFORE paley
- the scales argument
- the inductive leap to God argument
- the ship builder argument
- no experience of world-making
- the poor analogy argument
- order arising from matter not mind
the scales argument
- Hume (writing before Paley)
- criticism of the design argument
- when we see a set of scales with a certain weight lifted on one side and suppose the heavier side - the cause - is out of view, we can’t assume the heavier weight is infinitely heavy: this would be an inductive leap. Likewise when we observe a finite universe we cannot reasonably conclude an infinite god to be the cause
the inductive leap to God argument
- Hume (writing before Paley)
- criticism of the design argument
- fails to prove the god it intends to; even if you accept that there is evidence of design in the world, you do not need to accept that this is the all-powerful and loving Christian God. Hume gives a giant spider as an alternative
the ship builder argument
- Hume (writing before Paley)
- criticism of the design argument
- when it comes to complex things that humans create, such as ships, we recognise that many separate individuals are involved in their creation, not one single person. So it would be more sensible to conclude the world as a whole has or requires many designers
- doesn’t support a Christian God
no experience of world-making argument
- Hume (writing before Paley)
- criticism of the design argument
- we lack the experience required to make any sound judgement about the creation of the universe. If we had observed many universes being made many times, we would have more confidence in explaining the process. However, with only partial understanding of one universe, we are not in the position to suggest how it has been brought about. Like a peasant thinking he can run a kingdom because he can look after a home
the poor analogy argument
- Hume (writing before Paley)
- criticism of the design argument
- the design argument relies on comparing the natural world to human made objects such as watches to reach the conclusion that the world has been designed or made. However, it can be argued that this is a bad comparison. Hume suggests a better model/analogy for the natural world would be something like a vegetable - this does not require an intelligent being to explain it
order arising from matter not mind argument
- Hume (writing before Paley)
- criticism of the design argument
- a mind or intelligence is not required to explain order in the universe. He supposes that order could arise from matter itself. This is comparable to some modern scientific understandings or evolution from natural selection that see patterns and order arising without the need for a guiding intelligence
‘from observing the growth of…’
‘from observing the growth of a hair, can we learn anything concerning the generation of a man?’ - Philo
richard dawkins on the design argument
- as a biologist, Dawkins criticises the design argument for confusing intelligence with the process of natural selection that is responsible for the order and complexity of the natural world
- he also points out the problem of evil as an issue for those who want to believe an omnibenevolent God is responsible for the world, “so loving that he willingly created over 4000 different genetic diseases.”
Kant: ‘the mind imposes order on experience’
The mind imposes order on experience. It is therefore a creation of the human mind, and not a feature of the natural world. Consider the example of constellations in the sky. Are they really there as part of the world? Would they exist without us? Or are they just examples of the way we find patterns and order in a chaotic world? If we take this conclusion we can no longer say that the order and regularity of the world needs explaining. It is just a feature of our minds reflected back at us.