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What is the Teleological argument for the existence of God?

Question: "What is the Teleological argument for the existence of God?"

The word teleology comes from telos which means "purpose" or "goal." The idea is that it takes a "purposer" to have purpose, and so where we see things obviously intended for a purpose, something had to have caused it for a reason. In other words, design implies a designer. We instinctively do this all the time. The difference between the Grand Canyon and Mount Rushmore is obvious—one is designed, one is not. The Grand Canyon was clearly formed by non-rational, natural processes, whereas Mount Rushmore was clearly created by an intelligent being—a designer. When we are walking down the beach and see a watch we do not assume that time and random chance produced it from blowing sand. Why? Because it has the clear marks of design—it has a purpose, it conveys information, it is specifically complex, etc. In no scientific field is design considered to be spontaneous; it always implies a designer, and the greater the design, the greater the designer. Thus, taking the assumptions of science, the universe would require a designer beyond itself (i.e. supernatural).

The teleological argument applies this criteria to the whole universe. If designs imply a designer, and the universe shows marks of design, then the universe was created. Clearly, every life form in earth's history has been highly complex. A single strand of DNA equates to one volume of the Encyclopedia Britannica. The human brain is approximately 10 billion gigabytes in capacity. Besides living things here on earth, the whole universe seems designed for life. Literally hundreds of conditions are required for life on earth—everything from the mass density of the universe down to earthquake activity must be fine-tuned in order for life to survive. The random chance of all these things occurring is literally beyond imagination. The odds are many orders of magnitude higher than the number of atomic particles in the whole universe! With this much design, it is difficult to believe that we just got lucky. In fact, top atheist philosopher Antony Flew's recent conversion to theism was based largely on this argument.

In addition to being used to demonstrate God's existence, the teleological argument also exposes shortcomings in the theory of evolution. The Intelligent Design movement in science applies information theory to life systems and shows that chance cannot even begin to explain its complexity. In fact, even single-celled bacteria are so complex that without all of their parts working together at the same time they would have no survival potential. That means those parts could not have developed by chance. Darwin recognized that this might be a problem someday just by looking at the human eye. Little did he know that even single-celled creatures have too much complexity to explain without a creator!

Recommended Resource: I Don't Have Enough Faith to be an Atheist by Norm Geisler and Frank Turek.

Related Topics:

Is God real? How can I know for sure that God is real?

Does God exist? Is there evidence for the existence of God?

What is the Cosmological argument for the existence of God?

What is the Ontological argument for the existence of God?

What is the Moral argument for the existence of God?

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What is the Teleological argument for the existence of God?