The pressurized water reactor is great for a naval vessel, especially a submarine, but the boiling water reactor has a number of advantages over it for civilian nuclear energy. Boiling water reactor designs tend to be less stressed due to operating at lower pressure, radiation, and temperature levels. They also tend to have less components and a simplified design overall, including a merger of the primary and secondary coolant loops into a single system. With proper design, a boiling water reactors could even operate using natural convection for coolant, eliminating pumps and with it the entire class of station blackout scenarios. While pressurized water reactors received a head start due to their development by various world navies, the boiling water reactor is a similar design that uses similar technology. Could boiling water reactors have become the civilian nuclear standard instead of pressurized water reactors? If so, might there have been less nuclear energy incidents due to the failure modes of Three Mile Island and Fukushima being less likely in a boiling water reactor, as well as nuclear incidents overall? Might nuclear energy be somewhat more economically competitive?