What would "super ai" mean in terms of intelligence? How would that manifest? Could it somehow predict which atom decays next in a radioactive material?

Intelligence comes at costs and does not make omnipotent. We don't even know what "another level up" in intelligence would mean. Our physics no longer applying? Why?

Having something that is optically, acustically, and electromagnetically isolated might be a pretty strong sandbox.

Also, not sure it makes a difference in relation to AI whether one thinks of AI more like corporate or a non-corporate thing to regulate. The basics might stay the same, e.g., who can do what under what procedures.

Size of homes, yes, certainly different, but population density is also different. In super expensive places in Europe you'd pay more for less compared to the US (London comes to mind).

Charity spent - social model is different.

Agree that economic growth matters, though, but I would rather look at less cultural, political or physically linked indicators (e.g., cancer survival rates).

Why do you think we even have regulations for how to deal with dangerous things then?