Assuming we humans eventually figure out how to create a machine that achieves some sort of consciousness, I think it's time we start worrying about the inevitability of a massive series of wars fought between competing sects of robot religions.  There are a few assumptions involved, but I don't think they're outlandish: 
  1. We'll probably create a Terminator-like robot that can teach itself.
  2. If it learns from us, it'll learn what we learned:  Racism, bigotry, homophobia, sexism, and religion.
  3. This will happen more than once.
  4. Different religions don't get along, therefore war.
The singularity is expected to happen sometime in the next 50-100 years, so expect a robot savior in about 150 years, a confusing and mistranslated series of robot religious texts in 500 years, and a robot religious war for the next several thousand years.  Enjoy! #religion