Does everything in the world obey a mathematical logic, can everything be calculated? In our present age of probability, some would say the answer is a straightforward yes, inevitably prompting the question: Even art? Yes, even art, or so the defenders of Concrete Art would respond, a twentieth-century movement that took abstraction as a focus on the "idea of art itself" (W. Kandinsky) to the next level. The act of painting was now to be subject to preconceived organizing principles as though they were laws of nature. One prominent exponent of the genre was Aurélie Nemours (1910-2005), who had a penchant for the square; her credo was that it