Nations are less rational and self interested than individuals, but rationality and self interest is for the most part a rough approximation, as good as a spherical cow. It is a quite good approximation for monarchies such as Qatar and the former Lichtenstein. It is a very bad approximation to Palestinian behavior.
Is there any nation that “rationally and selfishly follows its collective interest”?
It is safe to say that there isn’t. The rest of us would have been left or overwhelmed within months.
Huh? Do you think that selfishness unambiguously means: dominate Earth (or what left of it) as fast as possible?
No.
Nations are less rational and self interested than individuals, but rationality and self interest is for the most part a rough approximation, as good as a spherical cow. It is a quite good approximation for monarchies such as Qatar and the former Lichtenstein. It is a very bad approximation to Palestinian behavior.