Worked in nuclear industry in the late 90's. Most *WR designs are inherently not fail-safe, complex, require dedicated teams, are nearly impossible to insure an

Worked in nuclear industry in the late 90's. Most *WR designs are inherently not fail-safe, complex, require dedicated teams, are nearly impossible to insure and require a massive capex investment. This isn't necessary. Modern MSR/LFTR designs tend to get around most of these problems by being smaller, simpler and most robus, similar to what some startups, Taylor Wilson proposed and partially what ANP/ASTR/MSRE/DMSR proved. Downsides to many small reactors include more, smaller sites needing physical/SCADA security and more geographically-diffuse waste handling. Upsides include no exploding containment vessels and consumption of HEU down-blended.