Sorry but 40 years of R&D with substantial resources seems like more than enough time to figure out how to make nuclear cheap. And remember - it’s still cheaper

Sorry but 40 years of R&D with substantial resources seems like more than enough time to figure out how to make nuclear cheap. And remember - it’s still cheaper than solar today without storage. Like we spent a long time on space but ultimately the things Musk did with spacex weren’t particularly capital intensive but still required a lot of R&D to pull off. Given that we know that we have lots of technological paths forward, why can’t we figure out how to build a nuclear reactor that we can continuously experiment with to figure out how to make it safer and safer as cheaply as possible? Like China had already approved molten salt reactors that fail safe - that means that all the other safety regulations we have from the 70s shouldn’t supply but they do today because nuclear isn’t a priority. Any reason we think that China is inherently more talented at building nuclear reactors than us?