"The emotion of beauty is always obscured by the appearance of the object," Mondrian explained; "Therefore the object must be eliminated from the picture." This is quoted in the Boston Globe article by Josh Rothman. Natural Reality and Abstract Reality .
Monnier - who by day is a theoretical physicist in Switzerland devises an algorithms which make a work. Kitsch, I think but the philosophical point is of interest.
He claims that his work is pure abstraction. The design of the system is where the expression lies. The process is rational but it is emotionally risk free. The variables are programmed and they directly affect the established aesthetic and in doing so generate a parody. A borderland phenomenon perhaps? (Open source engineers have a similar blind spot). To quote Sir Michael Berry from his lecture "How one theory can live within another." - "Words are are inadequate to understand reduction." In this case use your eyes and heart Mr Monnier as I reckon your use of the term purity is questionable.