I think it stands to reason that nuclear power plant design and construction efficiency would have progressed far more quickly with continued construction of nuclear plants.

And the amount of fossil fuel usage that greater energy production from nuclear sources would have curbed would have saved thousands of lives via reduced air pollution, particularly from coal usage, without coming at the expense of high energy prices, that increase mortality among the poorest segments of the population, that simply capping energy usage would have brought about.

So I disagree the mainstream environmental movement, that opposed the nuclear industry, got it right. I think they got it totally wrong, as any populist movement, that is heavy on simple narratives and ideology, and light on science, is bound to be, when it weighs in on extremely complex large-scale issues.