The G4 Cube is one of Apple's more infamous failures. Released in July 2000, it attempted an ultra-minimalist design, compressing just about everything into a shape "floating" in acrylic glass.

Back in 2000, Apple sold the world on sleek desktop computers that exposed their internal components for you to see. Now’s the perfect time to bring them back.

Apple used to be more experimental with Mac ... but there were also notable failures, like the Power Mac G4 Cube. The last radical Mac design was arguably the 2013 Mac Pro, sometimes dubbed ...