Look at this picture then read below
Consider for a second this pale blue dot. You probably can’t even see it. From 4 billion miles away, it looks pretty insignificant, doesn’t it? If there wasn’t an arrow, I doubt you would know exactly which dot—which speck—I was talking about. But it is significant: Your family, your friends, everyone you know, every person you have ever heard of, every person to ever exist, lived out their lives on this dot. Cavemen, lawyers, explorers, heroes, cowards, inventors, war lords, pop stars, entire civilizations, kings, slaves, mothers, fathers, and their children, corrupt politicians, teachers, soccer coaches, every single member of our species has lived there. On a speck of what looks like dust.