A significant paradox emerged from Norway's ethical guidelines: its sovereign fund was prohibited from investing in defense companies like Lockheed Martin, even while the Norwegian government was purchasing their F-35s for its own security. The war in Ukraine made this contradiction untenable, forcing a policy review.

Leading sovereign funds like Saudi Arabia's PIF and New Mexico's SIC are evolving beyond generating returns. They are now the primary policy tools for ambitious national goals, such as transitioning to a net-zero economy or funding universal childcare, directly tying investment success to tangible societal outcomes.

The success of Nordic countries isn't due to traditional socialism (redistributing from rich to poor). Instead, it's based on a different model: redistribution over an individual's lifetime, built upon a culture of highly competent government.

Unlike the UK, which produced similar oil amounts, Norway's success stems from two key decisions: a 78% tax rate on oil/gas and a high general tax level. This structure enabled them to save every dollar of oil revenue, creating the world's largest sovereign wealth fund while the UK accumulated debt.

Unlike typical sovereign funds that manage reserves, Temasek directly owns its assets. This structure necessitates actively selling assets ("recycling capital") to fund new investments, creating a disciplined trade-off between holding long-term winners and pursuing new opportunities.

Counterintuitively, a typical global reserve portfolio has a lower US dollar share (around 57%) than a return-seeking sovereign wealth fund's equity portfolio (up to 80%). The outperformance of US large-cap stocks makes any diversified equity strategy heavily weighted towards the dollar, independent of reserve policy.

While avoiding "Dutch disease," Norway faces a different risk: complacency. With its massive fund financing 25% of state expenditures, the country struggles with declining work participation rates. The main economic challenge shifts from generating wealth to motivating the workforce when hard choices are less necessary.

A crucial shift in global finance occurred when oil-rich sovereign wealth funds stopped funding the US government by buying its debt. They instead began buying US equity, gaining voting rights and direct control over major American corporations, fundamentally altering the power balance.

Finite national assets like oil, gas, or minerals are the "family silver"—they can only be sold once. The proceeds should not be used for current spending but should exclusively fund a sovereign wealth fund to benefit all future generations.