[quote]They do not feel the need to appeal to supernatural entities to calm their fears and insecurities.[/quote] Higher life expectancy, more wealth, etc. can't calm all your fears. For example: "what will truly happen after you die?" No one; no philosopher, no group of scientists, no project, will ever be able to disprove that there is life after death, even though I admit it also probably impossible to prove with actual science, and you shall always have that to fear.