Adam Lee contemplates how anti-aging therapy might challenge those who believe:
[W]hen we invent a real treatment for aging – when we can stop people from growing old, when we can rejuvenate ourselves at will – that will be the acid test of whether most religious people really believe what they say they do. Most religions teach that death is only the gateway into another realm of existence, one so blissful that we should envy the dead rather than mourn them. In a world where death is inevitable, that may be a comforting belief. But what happens when death is no longer inevitable? What will happen in a world where, barring rare accidents, people must choose to die?
Along the same lines, Ronald Bailey reviews Stephen Cave's Immortality: The Quest to Live Forever and How it Drives Civilisation:
[If immortality were possible] Cave argues that on the one hand, boredom and apathy would eventually set in after one has done and seen everything, and other the hand, the prospect of an infinite future means that there is no urgency to do or see anything resulting in paralysis. Meaningful lives require a time limit, he argues.
The Dish 