There's a particular stretch of my daily travels which puts me right under 7 lanes of freeway for the stretch of a light or two.

I marvel at the sheer amount of brainpower in engineering and architectural design that keeps all the metal and concrete above my head, but also get a little nervous about it all coming down on top of me.

I know it's pretty far fetched that I'd be right there when it came down, or that it would come down at all, but looking at the sheer weight and mass of materials above me, cars racing up and down it all hours of the day, I do wonder if it was built with all the care and dilligence it should have been.

You read the stories about major building collapses from reasons unknown, or worse, shoddy workmanship, and it makes me a little worried sometimes. I can't imagine someone intentionally slacking off, but I can see how in big projects a cut here, a rushed job there, leads to a gradual fade in quality, with sometimes dire results.

On the good side, if it did come down on me, I wouldn't last long enough to suffer from it.