There's a natural order to only believing what you see. It's smart, most of the time. But since nobody can be everything, we're all guilty of pushing away new ideas. Like an astronomer arguing with an astrologist, people will fight to the death over their perspective. Think of the scattered opinions on religion, race, sex, and identity—just in the United States alone. Then add all the other countries and cultures in the world. Consider then that the present is a single point and place in time, and you'll concede there are many more outlooks than your own.

