In article ,
says...

In another 50 years, when we have navigation that positions airplanes to the
inch and tracks timing to the tenth of a second, we'll be reading
descriptions of GPS and thinking, "gee, it's almost as if the author knew
what lay ahead".

Pete




In another 50 years, when we have navigation that positions airplanes to the
inch and tracks timing to the tenth of a second, we'll be reading
descriptions of what it was like back in the days when private individuals
were allowed, and could afford to fly their own airplanes.

GF