The secular religion spoken of by nabla has nothing to do with afterlives. It's for people who don't believe in any afterlife trying to placate their fear of death by having faith that technology will somehow grant them an indefinite life, not an afterlife.
(Context: I am firmly an atheist, but I also disapprove of the people who want to live forever. I think that's selfish and childish. People should get to grips with the reality of their mortality and make peace with that.)