> Government spending is already ~40% of GDP.

> A sovereign wealth fund? That seems like a great tool for a certain corrupt politician to use as a carrot to make CEO's bend to his/her whims.

Use the sovereign wealth fund to reduce income taxes. Other countries manage to run wealth funds without corruption. If a country can't do it then, I hate to break it to you, it's definitely not the fund's fault.

> Why half of AI and not half of Walmart & Exxon & Apple?

Good question. The answer: a more broad-based wealth tax, in the form of assets which go into a sovereign wealth fund, is probably the only way to make the long-term pension math work out in developed countries. You can only tax labor so much when capital actually has the most growth.