"Mankind will reach maturity on the day it learns to value diversity—of life and ideas. To be different is not necessarily to be ugly; to have a different idea is not necessarily to be wrong. The worst thing that could happen is for all of us to look and think and act alike." Gene Roddenberry
For Example: body snatching aliens, self-aware computers, and aliens. Are these over done or well used? Finding a new lease on life with a new audience.