It's a bit late to start the experiment if we need 20,000 working models in the next 6m to avoid climate change. That's the issue with nuclear: to late.
Energy storage is not a solved problem, and it will not be a solved problem for the next decade. In the meantime, we need to build nuclear reactors now.
https://www.theregister.com/2021/07/01/radioactive_hybrid_te...