Just look at the amazing things SpaceX has accomplished by learning from their failures. However, I wouldn’t suggest that the nuclear industry follow SpaceX’s fly, fail, iterate, and succeed model too closely. I’m pretty sure the surrounding residents wouldn’t tolerate very many “RUDs” (Rapid Unplanned Dissassembly) from their local nuclear plant.
That may be unavoidable. How do you know what can fail before it actually fails?