D Switch

While reading The Three Body Problem by Liu Cixin, which I am enjoying very much, I fell into a Wikipedia rabbit hole. I wanted to read more about our Sun, this led me to reading a bit about nuclear fusion which in turn made me read a bit about deuterium which then sent me indirectly to this paper about the 'D Switch' . Di Martino, R.M.C., Maxwell, B.D. & Pirali, T. Deuterium in drug …