It'd be neat if they figured out cryopreservation even for the brain. Right now my conception of death is just what I experienced for the billions of years before my birth. No complaints, but I didn't get much from the experience. If death is final then whatever. If there's the slightest materialistic chance of being reborn, that'd be fun even if it's just to do what I already do five hundred years from now. Give me enough of a robot body to hike and garden and I'll be happy.