Honestly only time will tell just how effective the passive safety here is. Even with the previous generation of reactors it takes multiple failures all at onc

Honestly only time will tell just how effective the passive safety here is. Even with the previous generation of reactors it takes multiple failures all at once for an accident to happen, so who's to say one day we're not going to see some new unforseen issue happening just at the wrong time. In fact this kind of touches on why some folks are looking at more radical changes. There are thorium reactor designs which require active, maintained energy to become critical at all. A melted block of thorium is sub-critical! None of these systems are any where near productionizable though. Overall, remember this isn't the first time someone thought they finally "cracked" safety. This is really about us getting more experience and refining our practices over time, not some "now nuclear is totally safe" threshold. https://how.complexsystems.fail/ https://how.complexsystems.fail/ was on hacker news a while back, you might like to read it to get more of a feel for how the progress of nuclear safety really happens.