Christianity and Singularitarianism present two radically different approaches to attaining eternal life. One is based upon the religious belief that beatific life after death can be attained by faith in Christian teaching. The other forecasts the arrival of the Singularity, a near-future event when the rapid ascension of technology will provide humans the means to evolve beyond their biology and survive indefinitely. This comparative analysis will not encompass all aspects of Christianity and Singularitarianism, but will focus primarily on their claims to immortality. I will... 1. Compare the origins, beliefs, and end-time mentality of Christianity and Singularitarianism. 2. Explore a variety of concerns regarding the possibility that science may one day offer this-worldly immortality. 3. Contextualize the historical and evolutionary origins of belief in other-worldly immortality. 4. Compare differing Christian views regarding the nature of immortality. 5. Analyze the sociological function of a Christian theology of resurrection. 6. Compare the prospects of modern individuals achieving this-worldly immortality with sociological data regarding the belief in other-worldly immortality. 7. Explore significant points of conflict between Christianity and Singularitarianism, and suggest ways to move beyond these conflicts. This analysis will lead to several important conclusions about the nature of science and religion during this unique historical era. First, the mere possibility that science and technology will offer many humans emancipation from the inevitability of death has significant consequences for: 1. The role of religions focused on life after death in modern society. 2. The plausibility of religious claims about the afterlife. 3. The status of religion vis-à-vis science. 4. The professional study of religion. Secondly, the possibility that humans may eventually possess indefinite lifespans calls to our attention that a line could be drawn between humans who will be able to survive until the advent of radical life extension technologies, and those who will not. Although it is uncertain where this line will be drawn, one can imagine how religions emphasizing belief in the afterlife could characterize life on one side of the divide, while also imagining how science could characterize the pursuit of immortality on the other side of the divide.