Gen-IV forum is a worldwide consortium with a long-standing effort in making nuclear fission viable for the second half of this century. It is less glamorous than fusion but much steadier, and at least three of the six Gen IV reactor designs under development are now approaching the technical readiness level for demonstrators. China and Russia are a bit ahead, to be fair, but the European Union is also doing well with their sodium and lead fast reactor concepts. This white paper just shows they care about more issues than blunt commercial viability. Also consider that they cannot rely upon Russian gas for much longer, and that the C02 zero emission target for 2050 is going to be tough, without nuclear (if they put it into the incoming tassonomy). United States are more pragmatic, and with a dual path: big national laboratories + commercial startups.