Check out the design features of the pebble bed reactor,,, looks disaster proof to me.
Thanks for mentioning this design, it was the one I was thinking about, but was blanking on the name.
Yes, this is the design that is virtually impossible to have go into a meltdown, specifically because of the design of the fuel and control spheres are. the guy explaining this design said it was almost impossible, so that’s why I was saying that. I suppose you can never say “never”.