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Another scenario could be if you were walking along a street and you seemed to feel that the person behind you is walking in step with you, as if you are being followed. So you look at him and scratch you head and think probably not, how can I be sure anyway?, but you note his face just in case. Then twenty minutes later you have walked to a different part of the city and look behind you and lo and behold, there he is again! Its a bit of a concern now, how could he be here just behind me now? Was he walking around the city randomly like me and he just happened to walk into this street, having earlier being beside me on the other street? What are the odds of that happening by chance? As you consider it though you might feel that it is just possible. These are two large streets with lots of people on them, maybe he is just going to the same shops you are? Now you walk through a huge thoroughfare with thousands of people jostling around each other as they go to work maybe, and you peel off into some insignificant side street where you know hardly anybody goes and look behind you and there he is again! So again, an intelligent person will now calculate the odds of this person being in the same three streets at the same time you were, and you will conclude that because the odds are too high then it had to be deliberate, it has to be ‘by design’ that he is following you.
So hopefully you begin to get the general picture here, once the odds start getting astronomical then you lift the possibility out of the realm of chance, or luck or randomness or undirected natural causes, and into the realm of design, or order or purposefulness. In fact right from the beginning this was held to be one of the great advantages of the science of probability, it was seen as a great new tool to help people identify the difference between design and chance. Here, for example, is a quote from the introduction to only the second book ever published on probability, ‘The Doctrine of Chances’ by Abraham de Moivre, a French Huguenot writing in early 18th century London:
Why dwell so much on the theory of probability, I hear you ask? What has that got to do with the existence of God anyway? Because this actually is the great battle ground between theists and atheists over this question of intelligent design. In practice its accepted by all, or nearly all, that there are indeed aspects of nature and the universe which do show events, or ‘laws’, that have huge improbabilities against saying that they happened, or exist, as a blind result of randomness or chance. In these instances many atheists continue to say that they came about by undirected natural forces whereas theists are saying that they must be the result of design, because of the huge probabilities against these being caused by chance. Theists talk about three areas in particular:
a) Various constants – i.e. precise mathematical figures that are revealed by physics – that have to be very exact to allow life to exist at all on earth. Meaning that if there was the slightest difference in figures like the cosmological constant then we wouldn’t be alive here on earth at all, and what are the odds of those figures magically arising so exactly like this by accident? Because there is this huge improbability that those figures could have arisen just by chance, then, just like in the examples given above, does it not mean that earth was ‘designed’ so that life could happen here on earth? So we have some ‘designer’ for earth and who could that be if not God? This is sometimes known as the Fine Tuned Universe Argument – i.e. fine tuned to a precise point to allow life to exist – for God’s existence and in fact is becoming increasingly popular as these strange constants keep getting discovered.
b) The Laws of Physics, are called ‘laws’ because they show a precise order and structure to the universe, but again if we are into order and structure then we have to ask are we not in the ‘design,’ as opposed to ‘chance,’ bracket? Then if so, the natural question that follows is who designed them? 32 Even Euclid (c.325 BC -c.265 BC), the great Greek mathematician who lived a lot of his life in Alexandria, and is the ‘father of geometry’, said that “The laws of nature are but the mathematical thoughts of God.”
c) But DNA, and lifeforms themselves, form the really great battleground in this argument between atheists and theists. This is because it has been shown that life, and in particular the structure of DNA and the cell, is built on enormously complex structures which, it is felt, couldn’t possibly have arisen by chance. To give you a flavour of these odds here is a quote on the state of our knowledge of these probabilities:
So hopefully you begin to get the general picture here, once the odds start getting astronomical then you lift the possibility out of the realm of chance, or luck or randomness or undirected natural causes, and into the realm of design, or order or purposefulness. In fact right from the beginning this was held to be one of the great advantages of the science of probability, it was seen as a great new tool to help people identify the difference between design and chance. Here, for example, is a quote from the introduction to only the second book ever published on probability, ‘The Doctrine of Chances’ by Abraham de Moivre, a French Huguenot writing in early 18th century London:
“Further, the same Arguments which explode the Notion of Luck, may on the other side, be useful in some Cases to establish a due comparison between Chance and Design: We may imagine Chance and Design to be, as it were, in Competition with each other, for the production of some sorts of Events, and may calculate what Probability there is, that those Events should be rather owing to one than to the other. To give a Familiar Instance of this. Let us suppose that two Packs of Piquet-Cards being sent for, it should be perceived that there is, from Top to Bottom, the same Disposition of the Cards in both Packs; let us likewise suppose that, some doubt arising about this Disposition of the Cards, it should be questioned whether it ought to be attributed to Chance, or to the Maker’s Design: In this Case the Doctrine of Combinations decides the question; since it may be proved by its Rules, that there are the Odds of above 263 130830000 Millions of Millions of Millions of Millions to One, that the Cards were designedly set in the Order in which they were found.
From this last Consideration we may learn, in ma[n]y Cases, how to distinguish the Events which are the effects of Chance, from those which are produced by Design: The very Doctrine that finds Chance where it really is, being able to prove by a gradual Increase of Probability, till it arrive at Demonstration, that where Uniformity, Order and Constancy reside, there also reside Choice and Design.”
Why dwell so much on the theory of probability, I hear you ask? What has that got to do with the existence of God anyway? Because this actually is the great battle ground between theists and atheists over this question of intelligent design. In practice its accepted by all, or nearly all, that there are indeed aspects of nature and the universe which do show events, or ‘laws’, that have huge improbabilities against saying that they happened, or exist, as a blind result of randomness or chance. In these instances many atheists continue to say that they came about by undirected natural forces whereas theists are saying that they must be the result of design, because of the huge probabilities against these being caused by chance. Theists talk about three areas in particular:
a) Various constants – i.e. precise mathematical figures that are revealed by physics – that have to be very exact to allow life to exist at all on earth. Meaning that if there was the slightest difference in figures like the cosmological constant then we wouldn’t be alive here on earth at all, and what are the odds of those figures magically arising so exactly like this by accident? Because there is this huge improbability that those figures could have arisen just by chance, then, just like in the examples given above, does it not mean that earth was ‘designed’ so that life could happen here on earth? So we have some ‘designer’ for earth and who could that be if not God? This is sometimes known as the Fine Tuned Universe Argument – i.e. fine tuned to a precise point to allow life to exist – for God’s existence and in fact is becoming increasingly popular as these strange constants keep getting discovered.
b) The Laws of Physics, are called ‘laws’ because they show a precise order and structure to the universe, but again if we are into order and structure then we have to ask are we not in the ‘design,’ as opposed to ‘chance,’ bracket? Then if so, the natural question that follows is who designed them? 32 Even Euclid (c.325 BC -c.265 BC), the great Greek mathematician who lived a lot of his life in Alexandria, and is the ‘father of geometry’, said that “The laws of nature are but the mathematical thoughts of God.”
c) But DNA, and lifeforms themselves, form the really great battleground in this argument between atheists and theists. This is because it has been shown that life, and in particular the structure of DNA and the cell, is built on enormously complex structures which, it is felt, couldn’t possibly have arisen by chance. To give you a flavour of these odds here is a quote on the state of our knowledge of these probabilities:
The aforementioned Professor Harold Morowitz (1927- ), a PhD from Yale in 1951, Professor of Biophysics at Yale 1960-86 and Director of the Krasnow Institute (1993- ), wrote:“In the last 30 years a number of prominent scientists have attempted to calculate the odds that a free-living, single-celled organism, such as a bacterium, might result by the chance combining of pre-existent building blocks. Harold Morowitz calculated the odds as one chance in 10 to the power of 100,000,000,000. Sir Fred Hoyle calculated the odds of only the proteins of an amoebae arising by chance as one chance in 10 to the power of 40,000.
...the odds calculated by Morowitz and Hoyle are staggering. The odds led Fred Hoyle to state that the probability of spontaneous generation ‘is about the same as the probability that a tornado sweeping through a junk yard could assemble a Boeing 747 from the contents therein.’
Mathematicians tell us that any event with an improbability greater than one chance in 10 to the power of 50 is in the realm of metaphysics – i.e. a miracle.”
These odds were also calculated by Sir Francis Crick (1916-2004), Nobel Laureate in 1962, and of course the joint discoverer of the double helix form of the DNA molecule:“The probability for the chance of formation of the smallest, simplest form of living organism
known is 1 to 10-340,000,000. This number is 1 to 10 to the 340 millionth power! The size of this figure is truly staggering, since there is only supposed to be approximately 10-80 (10 to the 80th power) electrons in the whole universe!”
“To produce this miracle of molecular construction all the cell need do is to string together the amino acids (which make up the polypeptide chain) in the correct order. This is a complicated biochemical process, a molecular assembly line, using instructions in the form of a nucleic acid tape (the so-called messenger RNA) ...Here we need only ask, how many possible proteins are there? If a particular amino acid sequence was selected by chance, how rare an event would that be?
This is an easy exercise in combinatorials. Suppose the chain is about two hundred amino acids long; that is, if anything, rather less than the average length of proteins of all types. Since we have just twenty possibilities at each place, the number of possibilities is twenty multiplied by itself some two hundred times. This is conveniently written 20 [to the power of] 200 and is approximately equal to 10 [to the power of] 260, that is, a one followed by 260 zeros! This number is quite beyond our everyday comprehension. For comparison, consider the number of fundamental particles (atoms, speaking loosely) in the entire visible universe, not just in our own galaxy with its 10 [to the power of] 11 stars, but in all the billions of galaxies, out to the limits of observable space. This number, which is estimated to be 10 [to the power of] 80, is quite paltry by comparison to 10 [to the power of] 260.
Moreover we have only considered a polypeptide chain of a rather modest length. Had we considered longer ones as well, the figure would have been even more immense. It is possible to show that ever since life started on earth, the number of different polypeptide chains which could have been synthesized during all this long time is only a minute fraction of the number of imaginable ones. The great majority of sequences can never have been synthesized at all, at any time.”