When left to their own devices, the laws of nature tend toward death, not life. So what does it take for life to exist? On this classic ID The Future out of the vault, host Eric Anderson begins a two-part conversation with physician Howard Glicksman about some of the remarkable engineering challenges that have to be solved to produce and maintain living organisms such as ourselves. Glicksman is co-author with systems engineer Steve Laufmann of the book Your Designed Body, an exploration of the extraordinary system of systems that encompasses thousands of ingenious and interdependent engineering solutions to keep us alive and ticking. This is Part 1 of a two-part conversation.