I was driving back from a distant client meeting recently (this place was out in the sticks so I had time to think) and I was paying attention to the road as I was driving over it with some detail. Not the potholes or the lines or anything like that. Rather, I became engrossed in the thought that at any point in time, we are, literally, walking on the edge of the earth.
We take this for granted surely. I mean we get pulled into a world of abstraction where the blue sky formed from changing air pressures creates this blueish barrier between us on earth, and space.
The reality is that the moment I jump into the air, I am already in space. I have actually done what all those people who spend $20 million do. I went into space. I know it sounds retarded but think about it for a second. Walking on the surface of the earth is essentially the same as walking on the surface of the moon. We perceive it be different because we see that amazing blue sky above us which creates this illusion of separation but its just air really.
What a simple thought, it was profound for me.