We flew commercial back to Atlanta yesterday from California after a
weeklong trip to San Francisco, Napa, and Yosemite. On the way home, I had
a window seat and was surprised on a couple of occasions at how close 1,000'
of vertical separation appears when you're looking out the window from seat
13A. When another airliner passes 1,000' right under you on a reciprocal
heading with a closing speed of over 1,000 mph, it looks CLOSE.

Other than being startled a couple of times by close views of other
airliners, the flight was really nice. We saw the painted desert, Meteor
Crater, and got a distant view of the Grand Canyon among other things.

One more comment. We had a connecting flight through LAX and had to catch a
bus from one terminal to another. At LAX the inter-terminal busses run
around on the ramp with all of the other service vehicles. There is a LOT of
traffic on that ramp, which really surprised me!