I agree that the fund's diversification helps some. But the fund is still fed from the oil income. And some of the oil income is spent in state budget, not all of it goes into the fund. And this is in addition to all the money being pumped into the economy from the oil industry (Norway has high wages, most Teslas per capita, etc). I think the financials of the citizens are much more connected to the oil profits than in other developed oil producing countries like the USA/UK/Netherlands.