What makes me uneasy is our sense of home. We feel at home in our towns, but if we venture too far out we get homesick. Another town, not so bad, another state, some people can do it, another country?

In the meantime if you condense the Earth to the size of a cue ball, the earth's surface-with all it's peaks and trenches- would be smoother than that cue ball. Go ahead and breathe on that cue ball and that film of condensation is as thick of a film as life is on Earth.

So keeping this insignificance in mind. Remember our solar system is orbiting the center of the galaxy. It takes 225 million years to do so. So the last time we were here, Pangaea was breaking up and the first dinosaurs were starting to appear.

So even though we feel at home we are a lot like those streaks of water you see on the windows sometime when you look out an airplane window. No real substance, hurtling from god knows where to god knows where. And if anyone is watching us move across that window we'll be gone before they know it with another drop to take our place.