Actually, cold fusion exists! Even energy-positive at that. It's just not positive enough - current production method is too wasteful to be of practical use (cr

Actually, cold fusion exists! Even energy-positive at that. It's just not positive enough - current production method is too wasteful to be of practical use (creating muon is too expensive atm). See https://en.m.wikipedia.org/wiki/Muon-catalyzed_fusion https://en.m.wikipedia.org/wiki/Muon-catalyzed_fusion