6Part II: The Biology of Forever—Biological Precedents for Immortal Life
19Part VI: The Varieties of Post-Human Experience—Exploring Different Paths to Transcendence
73. Earth’s Immortals
2012. Virtual Worlds as Primary Reality
84. Ecosystem Dynamics
2113. The Physical Perfectionists
9Part III: Identity in Flux—What It Means to Be Human When Humanity Is Redefinable
2214. The Infinite Frontier
105. Living With Your Copies
23Epilogue: The View From Tomorrow
116. The Three Humanities
24Continue the Conversation
12Part IV: The Architecture of Forever—How Society Rebuilds When Time Stops Mattering
25Acknowledgements
137. Population Plateau