I'm so torn on this. In a perfect world, where human greed doesn't allow corner cutting, upscaling nuclear would be a potentially great choice.

However, in the world we actually live in, even so-called "efficient" and "group focused" societies like Japan build nuclear reactors in a tsunami flood zone to save money.

I feel like in order to make nuclear viable for future plants, we'd have to create and implement some sort of one-of-a-kind anti-greed, anti-corruption, anti-corner-cutting culture that would run smack against the usual government lobbying culture we have in the US at least. And we'd have to get buy-in from ALL parties. AND we'd have to build based on the probability of extreme weather events becoming a common reality.

It's not impossible, but it would require a major societal change.