Planning for all contingenciesAt a meeting in a factory, a lecturer from the district Party committee tells the workers about their bright future in the USSR. "See, comrades, after this five-year plan is completed, every family will have a separate apartment. After the next five-year plan is completed, every worker will have a car! And after one more five-year plan is completed, every family will own an airplane!" From the audience, somebody asks, "What the hell one may need an airplane for?" "Don't you see comrades? Let's say, there are shortages in potatoes supplies in your city. No problem! You take your own plane, fly to Moscow and buy potatoes!"