REPL, Scrum & the Wright Brothers
Jeff Sutherland makes a convincing argument of using Scrum outside of software development in his recent book Scrum: The Art of Doing Twice the Work in Half the Time. A full 111 years before Sutherland published this book, the Wright Brothers practiced scrum to outmaneuver better funded and more entrenched competitors. REPL driven development is a technique that comes to business software creation from the scientific computing community.