Ok, but you have to be careful about "better solutions". I am not a nuclear engineer but passively cooled nukes are only solving one rare problem. A power gene

Ok, but you have to be careful about "better solutions". I am not a nuclear engineer but passively cooled nukes are only solving one rare problem. A power generating station has a lot of moving parts, I'm sure there are other risks that passive cooling doesn't solve. Other trade offs in efficiency and total output may eat up any safety advantage. You haven't helped anyone if your reactor is twice as safe but you have to build twice as many. This is akin to seeing one engine fire because a radiator failed, then demanding that all vehicles should be air cooled for safety.