Neil Gould wrote:
Recently, Newps posted:

[...] The plain simple fact of the matter is the limiting
factor is lack of runways. No amount of technology can force more
airplanes onto the runways we have now.

Isn't that somewhat dependent on the definition of "...the runways we
have now"? The problem is easily addressed by abandoning the hub
system that overburdens a few locations and barely worked when demand
was low. Alternatively, add hubs to some of the underutlilzed
airports. Of course, the airlines would probably find this to be a
threat to direct service to locations of highest demand, but from a
passenger's point of view, it's becoming more difficult to get a
flight direct to very many places anyway.

Neil

Sure that will work but to do it would mean more smaller aircraft in the
system, which I don't personally think is a bad thing but it could bring
about another problem where the ATC is over burdened. Of course it is a lot
easier to hire and train mor controllers than it is to build more runways.