Aww, you almost completely spoiled it.
Well, to continue...
The last people alive on the Vanguard were so embedded in their beliefs that the ship WAS the entire universe, so to get more room, a crew opened the porthole. After all, it was just one more compartment.
I wonder how it took the air to be sucked out?
Heinlein's point is obvious; at some point idiots come into a given culture and destroy everything.
Idiots are neither conservative nor liberal, they are simply idiots.
Dangerous idiots.
Well, to continue...
The last people alive on the Vanguard were so embedded in their beliefs that the ship WAS the entire universe, so to get more room, a crew opened the porthole. After all, it was just one more compartment.
I wonder how it took the air to be sucked out?
Heinlein's point is obvious; at some point idiots come into a given culture and destroy everything.
Idiots are neither conservative nor liberal, they are simply idiots.
Dangerous idiots.


I am very deeply shock this thing, that you have brought up 


ironically.