A Dark Age is not just a period in which people no longer know how to do things. The real key is that people no longer remember that certain things can be done at all.
Jerry PournelleMutually Assured Destruction, MAD, works only as long as it works; it does not know what to do if deterrence fails, for it envisions no defensive capabilities. A deterrent works until it is needed; then one needs defenses.
Jerry PournelleMuch of economics isn't difficult, or rather, the difficulty is in cooking up arguments to "prove" that commonsense conclusions are wrong. The fact is that many commonsense conclusions are quite correct, and it takes a lot of education to get you to believe different.
Jerry PournelleIn any bureaucracy, the people devoted to the benefit of the bureaucracy itself always get in control, and those dedicated to the goals the bureaucracy is supposed to accomplish have less and less influence, and sometimes are eliminated entirely.[Pournelle's law of Bureaucracy]
Jerry Pournelle