Design Arguments. Arguments for theism Ontological arguments Cosmological arguments Design arguments.

Slides:



Advertisements
Similar presentations
General Argument from Evil Against the Existence of God The argument that an all-powerful, all- knowing, and perfectly good God would not allow any—or.
Advertisements

Anthropic Design Arguments and the Anthropic Principle
A Scientific Argument for the Existence of God
Philosophy and the proof of God's existence
Explaining the universe
Phil 1000 Bradley Monton Class 3 The Argument From Design.
Cosmic Constants: Evidence for an Intelligent Design by Darby Truax.
Phil 1000 Bradley Monton Class 4 The Problem of Evil.
Swinburne’s argument from design
© Michael Lacewing The Argument from Design Michael Lacewing
The argument from design: Paley v. Hume Michael Lacewing
Hume’s Problem of Induction. Most of our beliefs about the world have been formed from inductive inference. (e.g., all of science, folk physics/psych)
Cosmological arguments for God’s existence.  Derived from the Greek terms cosmos (world or universe) and logos (reason or rational account).  First.
A BIBLICALLY SOUND, PHILOSOPHICALLY COHERENT, AND SCIENTIFICALLY FAITHFUL METHODOLOGY FOR DEFENDING CHRISTIANITY AND THE EXISTENCE OF GOD. H OW TO A RGUE.
The Teleological Proof (II) The “Fine-Tuning” Argument 1.) The physical universe has been “fine-tuned” so that it may produce and sustain life. (Premise)
The Cosmological Proof Metaphysical Principles and Definitions Principle of Sufficient Reason (PSR): For every positive fact, whatsoever, there is a sufficient.
The Cosmological Argument.
The Perfect God Anselm’s clever trick.
Arguments from Design Philosophy of Religion 2008 Lecture 4.
Phil 1000 Bradley Monton Class 2 The Cosmological Argument.
The Cosmological and Teleological Arguments for God.
The Existence of God Daniel von Wachter. Issues involved How does “God” refer? What is God supposed to be like? What makes theistic belief rational? (basic.
Philosophy of Religion Michael Lacewing
Introduction to Philosophy Lecture 7 The argument from evil By David Kelsey.
PHIL/RS 335 Arguments for God’s Existence Pt. 1: The Cosmological Argument.
Origin of the Universe Big Bang Theory.
The Teleological Argument October 7 th The Teleological Argument Learning Objective: To analyse the argument from Design, considering its strengths.
The Teleological Argument also known as “ the argument from design ”
Science 9: Unit B Topic 3: The Elements.
Kevin Vandergriff. Prior Probability in Terms of Simplicity Christian Theism Specified Naturalism (Hypothesis of Indifference) 1 - A maximally powerful.
The Cosmological Argument ► Aquinas presents the argument in three “ways” but the argument is a single one. ► First – All things are moved by something.
 Born to a noble family in Italy  As a young man, joins the Benedictine Order in Normandy, France, residing in the monastery there for 30 years – 15.
Faith & Reason Arguments for God’s Existence. The Two Ways of ‘Knowing’ God  Pure Reason: Many philosophers have created proofs using logic to prove.
“Does God Exist?” Think with me for a moment: What is the most important question of anyone’s life? “From where did I come?” “Where am I going?” “Who am.
Introduction to Philosophy Lecture 5 The Ontological Argument By David Kelsey.
The Teleological Proof A Posteriori Argument: A argument in which a key premise can only be known through experience of the actual world. Principle of.
LECTURE 22 THE FINE-TUNING ARGUMENT FOR DESIGN. THE INITIAL COMPETITORS NATURALISTIC (SINGLE WORLD) HYPOTHESIS (NH 1 ): Reality consists of a single material,
Ontological Argument. Teleological argument depends upon evidence about the nature of the world and the organisms and objects in it. Cosmological argument.
Does God exist?. What’s new? If you go to your school every day and every day it looks the same do you think much about it? If one day you go there after.
LECTURE 19 THE COSMOLOGICAL ARGUMENT CONTINUED. THE QUANTUM MECHANICAL OBJECTION DEPENDS UPON A PARTICULAR INTERPRETATION WE MIGHT REASONABLY SUSPEND.
Teleological arguments for God’s existence
Chapter 1: Religion God as Creator: Intelligence and Design Introducing Philosophy, 10th edition Robert C. Solomon, Kathleen Higgins, and Clancy Martin.
Introduction to Philosophy Lecture 5 The Ontological Argument By David Kelsey.
Introduction to Philosophy Lecture 7 The argument from evil By David Kelsey.
HUME ON THE ARGUMENT FROM DESIGN (Part 1 of 2) Text source: Dialogues Concerning Natural Religion, parts 2-5.
LECTURE 23 MANY COSMOI HYPOTHESIS & PURPOSIVE DESIGN (SUMMARY AND GLIMPSES BEYOND)
+ The Practice of Statistics, 4 th edition – For AP* STARNES, YATES, MOORE Unit 5: Hypothesis Testing.
LECTURE 18 THE COSMOLOGICAL ARGUMENT: ANOTHER ATTEMPT TO PROVE THAT SOME THING NECESSSARILY EXISTS.
Chapter 1 What is Biology? 1.1 Science and the Natural World.
Section 9.1 First Day The idea of a significance test What is a p-value?
L/O: To explore Hume’s criticisms of the Design Argument.
Give definitions Give an opinion and justify that opinion Explain religious attitudes Respond to a statement – 2 sides.
Chapter 1: The cosmological argument AQA Religious Studies: Philosophy of Religion AS Level © Nelson Thornes Ltd 2008 Revision.
Two central questions What does it mean to talk of, or believe in, God? –Is talk about God talk about something that exists independently of us? Or a way.
Revision Notes Courtesy of Mr Dixon. Instructions This PowerPoint has all the information you need to complete your Revision Booklets for the Science.
Philosophy of Religion
The Argument from Design
Unit 5: Hypothesis Testing
Unit 1 - Introduction to Matter
THE ONTOLOGICAL ARGUMENT.
Explore key ideas in the ontological argument. (8 marks)
THE COSMOLOGICAL ARGUMENT.
The Argument from Design
The Teleological Argument
Significance Tests: The Basics
The Big Picture Deductive arguments - origins of the ontological argument Deductive proofs; the concept of ‘a priori’. St Anselm - God as the greatest.
Significance Tests: The Basics
THE ONTOLOGICAL ARGUMENT.
THE COSMOLOGICAL ARGUMENT.
Presentation transcript:

Design Arguments

Arguments for theism Ontological arguments Cosmological arguments Design arguments

Ontological arguments Attempt to establish the existence of God a priori (not based on any facts known by experience) It follows from the very idea of a theistic god that such a being must exist A theistic god by definition has all perfections Existence is a perfection Thus, a theistic god exists

Cosmological arguments Attempt to show that the very existence of the cosmos—any cosmos--must be explained by saying that it was created by a supernatural being It doesn’t matter what the cosmos is like; it must have a divine origin

Design arguments The world has some special feature that is best explained by supposing that it was designed that way by a rational being. This feature cannot have been designed by any inhabitant of the cosmos. It’s reasonable to accept the best explanation for something known to be the case. So it is reasonable to conclude that there is a supernatural being who designed the cosmos. Also called ‘teleological arguments’, since they appeal to purposes or goals

The central premise The cosmos has some special feature that is best explained as the product of intelligent design by some sort of god. Some possible universes show evidence of intelligent design and others don’t. What sort of feature would count as evidence of intelligent design?

length: cm width: cm height: cm mass: kg

The Question Can we find any objects or features of the world that appear to have been designed, but were not designed by human beings or other inhabitants of the cosmos?

Why are there living organisms? 1.They were designed by an intelligent non- organism: a supernatural being 2.Or maybe they came about by some natural process involving evolution by natural selection. Organisms are born with random variations. Some of these variations are advantageous. Those organisms that have these traits are more likely to reproduce. Their offspring inherit the advantageous traits.

What evolution by natural selection doesn’t explain Where did the first organisms come from? Why is the universe conducive to life? It didn’t have to be that way. That the universe is conducive to life is very surprising.

The gravitational constant G = x N(m/kg) 2 Other numbers ‘filled in by hand’: the masses of the proton and neutron, the charge on the electron, the strength of the electromagnetic force, and many more

What would the universe be like if these numbers were different? If they were even slightly different—in some cases by one part in life would be impossible. There would be no atoms, or no stars, or only very short-lived stars,…

A universe-making machine

The pointer on dial 18 reads If it were not set at a value between and , there would be no carbon atoms and hence no life. The pointer on dial 12 reads , and the pointer on dial 4 reads If the difference between these readings were greater than , all stars would burn out within a few thousand years; if they were exactly equal, there would be no matter but only radiation. The proportion of possible universes (with the same general laws as ours) that contain stars has been estimated at 1 in

Why are the dials set so as to make life possible? By design: Some rational being set the dials as they are in order to create a universe containing life Why would a rational being want to create a universe with life in it? We don’t need to answer this question in order to know that the cosmos was designed.

The fine-tuning argument 1.The best explanation of the fact that the universe is hospitable to life (if not the only explanation) is that it was designed that way by a supernatural being 2.It’s reasonable to accept the best explanation for something we know to have occurred. 3.So we should conclude that the universe was designed by a supernatural being.

The fine-tuning argument: three questions 1.Does the fact that the universe is hospitable to life need any explanation at all? 2.Is the design hypothesis a good explanation of that fact? 3.Is there another explanation equally good?

1. Does the fact need any explanation? The dials just happen to be set as they are by chance. That may be unlikely, but unlikely things do happen. The dials had to be set somehow, and their actual settings are is no less likely than any other settings. We were just lucky.

2. Is the design explanation a good one? It doesn’t explain the existence of the Designer (Mackie). It doesn’t explain the existence of organized complexity (Dawkins). Both points are correct, but irrelevant. Even if the design hypothesis does not explain the existence of organized complexity, it might explain why the universe is conducive to life. Any explanation of a contingent fact will appeal to something else that it doesn’t explain. The hypothesis that the Martian watch was dropped by the Americans leaves many facts unexplained.

3. Is there any other explanation? The machine had to be fine-tuned for life, because otherwise there wouldn’t be anyone here to ask any questions. So no further explanation is needed. There had to be a working watch lying in the Martian sand, because otherwise you wouldn’t have found one there. So no further explanation is needed. The fact that you found a watch shows that there is one there, but not why there is. The fact that there is life in the universe shows that the machine is fine-tuned for life, but not why it is.

Is there any other explanation? The numbers had to be the way they are. The possible universes where the numbers are incompatible with life are not really possible. The dials could not have been set in a way that produced a universe with no stars, or where all matter is violently radioactive,… But there is no reason to believe this, and on present evidence it looks very unlikely.

The ‘multiverse’ hypothesis Our universe is one of many actual, concrete universes. In every universe the numbers are different. The machine’s dials are set and reset at random many times, and each time it produces another universe There are so many different universes that it’s likely that at least one will be life-permitting. It’s not surprising that that’s the universe we live in, since there are no philosophers in any of the others.

The ‘multiverse’

Fishing You catch a fish inches long. No surprise: every fish has some length, and there’s nothing special about that one. But your fishing gear can only catch fish that are inches long ± one part in a million.

Why did you catch a fish inches long? 1.Someone knew about your fishing gear, and put a fish of that length in the lake for you to catch: a design explanation. 2.There are millions of fish of different lengths in the lake, so many that one of them is bound to be inches long: analogous to the ‘multiverse’ explanation. It’s no surprise that you caught that one, since it's the only one you can catch. 3.There is only one fish in the lake, and by good luck it just happened to be inches long: no explanation.

Now what? It’s reasonable, at least, to accept the best available explanation of something we know to be the case. Suppose the design hypothesis and the ‘multiverse’ are both good explanations of why the universe is life-permitting, and there are no other good explanations. Which explanation is better?

The ‘multiverse’ explanation is extravagant. There are not merely many possible universes. There are trillions of actual, concrete universes. For some reason we are able to observe only one. It may not be a proper scientific hypothesis.

Which explanation is better? The design explanation is equally extravagant, even if it doesn’t specify the precise nature of the Designer. It appeals to a supernatural being, which for some reason we are unable to observe. It’s no more ‘scientific’ than the multiverse hypothesis.

Which explanation is better? Some say the design hypothesis is simpler, as it posits only one object rather than trillions (Swinburne). Others say the ‘multiverse’ hypothesis is simpler, since it posits only objects of the same sort that we already know to exist. Both are extravagant, but in different ways.

Tentative conclusion Suppose the ‘multiverse’ hypothesis is a good explanation of why the universe (or some universe) is life-permitting. It’s not obviously a worse explanation than the design hypothesis Then the design argument is inconclusive. At best it shows this: either there is a supernatural designer, or there are many other universes.