Yeah, I can believe that humans can safely operate a nuclear power plant for fifty years, maybe even one hundred, but when your plan is for humans to run the plant indefinitely, you sort of have to take into account that people will eventually get sloppy, take shortcuts, say 'hey, this always worked out before, relax', etc. and meanwhile you run into various blackswan low probability events…

Nuclear: a good bridge technology; a terrible long term strategy!