He has a quote from somewhere that I can't locate at the moment which is (paraphrased) "any new reactor design is always safer and more efficient than existing

He has a quote from somewhere that I can't locate at the moment which is (paraphrased) "any new reactor design is always safer and more efficient than existing designs, until they get built, which is when they become expensive and less safe". I always have to refrain from trotting that out whenever the pro-nuclear fans trot out how wonderful Gen-IV, or MSR, or whatever lights up their fantasies will be.