After death there will be nothing. So we have to develop scientific approach to longevity as fast as we are capable.
Kind Regards,
Yet the universe will at some point be nothing anyway. Also consider everything in life never turns to nothing - fire burns and turns to smoke which mixes with air etc etc. After death comes a new journey IMO.
Of course, the simple reason why we don't know about what is after death, might be that some of the dead have gone on to such a joyful new life that they don't even remember this one, and others have gone to a prison they can't get out of to come back and tell us.