Agreed that is a significant gating factor, but the situation is not impossible. Several paths are laid out for moving forward in a 2018 report by a couple of

Agreed that is a significant gating factor, but the situation is not impossible. Several paths are laid out for moving forward in a 2018 report by a couple of ANL scientists. The report is quite readable, even if you know little about materials science. [1] https://art.inl.gov/ART%20Document%20Library/High%20Temperature%20Materials/45171%20Status%20of%20Metallic%20Structural.pdf https://art.inl.gov/ART%20Document%20Library/High%20Temperat...