I've been hearing about improved electric motor efficiency for at least 30 years from Scientific American and the Rocky Mountain Institute, among others. I dis

I've been hearing about improved electric motor efficiency for at least 30 years from Scientific American and the Rocky Mountain Institute, among others. I dispute the claim that current industrial motor efficiency is 50%. I also want to know why this revolutionary motor technology is different from all preceding, failed, revolutionary motor technologies in terms of market acceptance.