I think it's a primal thing, back to our roots and beginnings in our psyche with the feeling of freedom when we were all so much younger...remember the thrill of finally getting the damn thing to balance and actually moving forward? My first solo was down an alley, fast! If there had been a car coming that day I would have ended my career way early. But I think God looks out for cyclists to a certain degree, I know he did for me that day. I got to school so fast that day I felt almost super-human. There's all the right reasons- getting fit, saving fuel, lessening traffic, improving the air, better parking...but I think it's under the surface. It's that grin you get when you shoot down the alley and out into the world with only your body and soul moving you along faster and farther than anything can go on foot. It's the exhilaration of feeling the wind in your face and the sun on your back. It's going back in time and actually being, not just remembering, what it was like to be a kid again...