Teleology (from Greek telos, meaning end or purpose) is the philosophical study of nature by attempting to describe things in terms of their apparent purpose, directive principle, or goal. A purpose that is imposed by a human use, such as that of a fork, is called extrinsic.Natural teleology, common in classical philosophy but controversial today,contends that natural entities also have intrinsic purposes irrespective of the human use or opinion.
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If you accept this analogy then you accept that as the purposefulness of a watch implies the existence of a watchmaker so does the purposefulness of world implies the existence of a world maker. In the book, the language of God, Francis Collins tells that the conditions that allow life in the universe can only occur when certain fundamental physical constants are in very narrow range.