Giulio Prisco at Turing Church explains how Cosmist beliefs can provide solace for nonbelievers confronted by the gaping void of permanent annihilation:
I cope with the grief from the death of loved ones by contemplating the Cosmist possibility, described by many thinkers including Nikolai Fedorov, Hans Moravec and Frank Tipler, that future generations (or alien civilizations, or whatever) may develop technologies to resurrect the dead. A related idea is that our reality may be a “simulation” computed by entities in a higher-level reality, who may choose to copy those who die in our reality to another reality. Contemplating these possibilities is my way to cope with grief, I hope you will find your own way.
Cosmism is one of those “third ways” that are often passionately rejected by those who believe in the old ways, but in my opinion it is a Hegelian synthesis of what is good in the old ways: it is firmly based on science, and at the same time it offers all the important mental devices of religion, including hope in resurrection. Hoping in an afterlife has survival value for both individuals and societies, because it gives people the strength to continue to live instead of withdrawing (or worse) in despair.