Just what is information? Why is so much of it needed for life? And where did it all come from? On this ID The Future, we're pleased to rebroadcast in audio form the latest episode in biochemist Michael Behe's Secrets of the Cell series on the mystery of biological information. In this episode, Behe starts by explaining just what information actually is. From the decision to flip a switch to the thousands of decisions needed to build complex structures, information is everywhere in our world, and it also runs the show in the hidden inner world of cells. Behe describes how cells manage information to build tissues, organs, and systems. He also explains that each cell is part of a massive collaboration of trillions of cells, where the right information at the right time flows through us in the form of chemical and electrical signals, activating different energy modes and keeping our entire body functioning efficiently.

To conclude, Behe invites us to join him for a sobering thought experiment: attempting to build an instruction manual for a human femur bone. Sounds simple enough in theory. It's just a bone, after all! But Behe reminds us of the many layers of complexity inherent in making even a single bone part of a larger, dynamic, and coordinated living system. Complex machines and working structures, says Behe, are possible only through specific code that determines form and function. And our uniform and repeated experience affirms that specified or functional information always arises from an intelligent source, not a strictly material process.