Didn't someone the same thing about atomic power back in the middle ages? But that's OK, fusion is a hard thing to do outside of a star. It may take decades lo

Didn't someone the same thing about atomic power back in the middle ages? But that's OK, fusion is a hard thing to do outside of a star. It may take decades longer for it to be practical but doesn't the potential return on investment make it worthwhile to keep working on it now?