“Given how unstable the reactor was, I go with natural”
I see you are doubling down. Keep your day job!
Well tell me which it was and why. Obviously you’re clueless since you can’t answer.
Do you even know what natural metal is? It is pure uranium, whose natural u235 component has not been artificially increased by enrichment. It does not mean rocks. The first us reactor had zero enrichment as well. It’s a lot cheaper, but CANDU reactors can do this feat as well, but much more safely.
The way I see it you are the one doubling down...