I would only be cautiously optimistic : even if our energy problems are solved, the construction of reactors, for example the superconductors, might require som

I would only be cautiously optimistic : even if our energy problems are solved, the construction of reactors, for example the superconductors, might require some rare materials. The grab for energy could become a grab for minerals. It will probably involved other regions of the world though and change the whole dynamic.