oh, and the other thing is some of the walls they talk about having 'blankets' that absorb the neutrons and ... somehow get the heat out; one of them is 'flibe'

oh, and the other thing is some of the walls they talk about having 'blankets' that absorb the neutrons and ... somehow get the heat out; one of them is 'flibe' which is a lithium salt: https://www.tandfonline.com/doi/full/10.1080/00295450.2019.1691400 https://www.tandfonline.com/doi/full/10.1080/00295450.2019.1...