Eventually contamination, disease, social violence, or just plain boredom will prove to be our doom. Man will have the same problem as mice have when confined in a utopian environment. Back in the 1980's scientists found that under utopian conditions, mice began to just die. They did not die from lack of food, exposure to disease, violence, or genetic factors, they just lost the will to live. They lost their need to struggle to survive, they lost their purpose to live.
Men needs a purpose in life.
Mankind needs a purpose to survive. The purpose cannot, however, be something we want it to be. It has to be what it is or what it most logically seems to be when considering the information we have culled through intuition, religion, science, and philosophy. It has to make sense and it has to transcend all four yet embrace all four because intuition, religion, science, and philosophy have been the cornerstone of mans' search for his purpose in the total scheme of things. Absolutely, it is one of the four cornerstones of man.