[A. Pole]

There is no Galt's gulch. And if there was the government would find it and Waco them all.

You forgot about the invisiblity shields. Ayn Rand came from Russia and she must have been so impressed by the Russian story of invisible city Kitezh that she decided to create atheistic version of it.

[Nowhere Man]

You forgot about the invisiblity shields. Ayn Rand came from Russia and she must have been so impressed by the Russian story of invisible city Kitezh that she decided to create atheistic version of it.

IIRC, I think Dagny's plane got too close to Galt's Gulch, her engine conked out, probably due to the electromagnetic interference (EMI) from the invisibility field interfered with the ignition system. I got the impression the field was generated with a lot of power, ala "The Philadelphia Experiment," and it worked much the same way using high intensity RF (radio frequency) fields. I think Galt's Gulch would have its cover blown at some point, with all that EMI, someone, most likely the FCC, would be snooping around and then things would happen after that.

A side note, I'm an amateur radio operator and into electronics so I'm weighing in on the technical side.