The basic economic principle dates back decades. "Guns versus butter" is a classic example of the production possibility frontier. It models the relationship between how much a nation spends on defence (guns) compared to civilian goods (butter). You can have one or the other or some of each, but with finite resources, a country can't have lots of both. Considering how long this time-proven economic fact has been around. you'd think more politicians and civil servants would understand it.
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