The document discusses several key issues facing churches: 1. Population growth in the US far outpaces growth in church attendance, with over 90 million more people living in the US than 16 years ago but church attendance remaining the same. 2. Churches struggle after age 40 due to becoming less flexible and slow to change, while new churches have very high closure rates. 3. Cultural changes like moving from a Christian to post-Christian society, modern to post-modern worldviews, and monoethnic to multiethnic populations present challenges for churches to remain relevant. 4. New approaches are needed to read cultural changes and engage with people in a post-modern, electronic media-driven age