[mohawk]

What exactly do you mean? It's too expensive? Legally impossible? No insurer would insure this?

It's a thought experiment to show what replacing wishful thinking with a tiny amount of objectivity would look like. OP was talking about expectation value of damages etc. Insurers are companies that deal with these sorts of things professionally.

The economic damages of Fukushima and Chernobyl are real and gigantic. It would be foolish to ignore them.