(Meta: the source article's title uses the referent "world's largest fusion reactor". HN's anti-clickbait bot edited that to "largest fusion reactor". Taking th

(Meta: the source article's title uses the referent "world's largest fusion reactor". HN's anti-clickbait bot edited that to "largest fusion reactor". Taking the spirit of the bot's intentions to heart, I edited it again, to "JT-60SA tokamak", to more thoroughly erase the phraseology that seemed to annoy it).