Y'know what would be disturbing?
"Want to see something REAL scary?"
-Shadow Hunter
What if we're all (not to be confused if "we were all") just creatures in some guy's computer game? Not saying that guy's god, but what if this guy created all our beliefs and was responsible for all our good/bad luck? What if he was responsible for all our vulnerabilities, all our different languages (which I don't really see the point of...sorry if I offended anyone), all our diseases?
Another disturbing thought: What if what we're seeing, hearing, tasting, smelling, and feeling isn't the same as what another guy sees, hears, tastes, smells, or feels? For example, I could see a huge city and someone else could see it in ruins. That said...is there any real reality to things?