Nothing's free in life. It's a sobering reality we all come to realize in life. And this cold, hard truth also applies to the realm of biology. On today's ID The Future, host Andrew McDiarmid continues his four-part discussion with mathematician and philosopher Dr. William Dembski. The topic is Dembski's work on the law of conservation of information, a principle asserting that information within a search process is redistributed from pre-existing sources rather than materializing from nothing. In addition to being used in computer science and physics, the law can also be applied to theories of biological origins to evaluate which theory best comports with the reality that all information comes with a cost, and that cost must be adequately explained. This is Part 3 of a four-part conversation.