ITER isn’t really a source of breakthroughs in necessary materials; it didn’t develop new superconductors, hasn’t solved the fusion blanket problem, it won’t be

ITER isn’t really a source of breakthroughs in necessary materials; it didn’t develop new superconductors, hasn’t solved the fusion blanket problem, it won’t be breakeven, Stellerators already are superior in terms of containment, and ITER’a fusion vessel is still intolerant of sputtering. The delays are famously a result of so many countries vying for contracts, and the result is a high performance machine built by committee. It doesn’t even attempt to generate “new insights” it’s just a bad, old idea at scale.