Earlier quoted context omitted.
This is always the case when you build large one-off projects. If you continue to build reactors non-stop you'll learn how to make the process more efficient and be able to make better estimates. Surely we software developers should appreciate how hard making accurate estimates is? And this isn't a 2 week sprint we're talking about, but a gigantic engineering project.
But are we going to build reactors non-stop? Is there either private-sector funding for this, or government subsidies to make it happen?
Power demand increases. Technology improves. Installed capacity ages out.
There will always be a need to build new plants, might as well lean into it and be proactive.