> IIRC (correct me if I'm wrong) the other benefit of molten salt cores is that they are self regulating The feature is called a negative temperature coefficie

> IIRC (correct me if I'm wrong) the other benefit of molten salt cores is that they are self regulating The feature is called a negative temperature coefficient of reactivity. Most (all?) water-moderated cores have this feature. > Therefore things like catastrophic meltdowns are not really a huge issue and cooling is much less of a touchy endeavor. Meltdowns such as in Fukushima and Three Mile Island are a result of reactor decay heat. In both cases, the fission has already stopped, but the shortest-lived fission products are generating enough heat to cause a problem. Pretty much every Gen-IV concept reactor has provided for passive decay heat removal as well.