Despite their fabled immiscibility, a few grams of oil would dissolve very thoroughly in a thousand tons of superheated water. The numbers matter. The people s

Despite their fabled immiscibility, a few grams of oil would dissolve very thoroughly in a thousand tons of superheated water. The numbers matter. The people studying fusion are carefully restricting their attention to the immediate problems of getting it to work at all. E.g., ITER will have no lithium blanket. They figure on building another whole reactor to be completed (initially guessed) 15 years later at (initially guessed) 4x cost to begin tackling practical difficulties of extracting useful thermal energy.