With Random Distribution, the purpose of my system was to cause a reaction between two colours of equal intensity. I drew horizontal and vertical lines to make 40,000 squares. Then my wife or my sons would read out the numbers from the phone book (except the first repetitive digits), and I would mark each square for an even number while leaving the odd ones blank. The crossed squares were painted blue and the blank ones red. For the 1963 Paris Biennale I made a 3-D version of it that was shown among the Groupe de Recherche d’Art Visuel installations (and re-created it again on different occasions). I wanted to create a dazzling fight between two colours that shared the same luminosity. This balance of colour intensity was hard to adjust because daylight enhances the blue and artificial light boosts the red. I wanted the visitors to have a disturbing experience when they walked into this room - to almost hurt their eyes with the pulsating, flickering balance of two colours. I like that kind of aggression.