I am the author of the comment you were replying to, so I assume I'm reasonably familiar with what it says and does not say. I did not say that Norway's _economic_ success is caused by the fund, that's silly. I was replying to a comment suggesting that comparing a country to Norway in the context of increased social cohesion and we could just cargo-cult whatever they're doing is simplistic, because their situation is different, among which a trillion dollar sovereign piggy bank.
To more directly answer your question: the fund is the sort of level-headed strategic genius that only a sane country like Norway could pull off. Compare Alaska.