'Knowtoneed"

Found a fellow blogger who has found Leandro Erlich. He was born in Argentina but now lives and works  in Paris. 

'On entering a Leandro Erlich installation, the viewer enters a world of trickery and illusion; doors cannot be opened, peepholes reveal the unexpected, mirrors do not reflect and viewers can submerge themselves in a swimming pool without getting wet. His installations function like puzzling set designs in which the viewer becomes the actor and Erlich the director. Erlich challenges the viewer's habitual idea of reality by creating an unexpected experience from a familiar environment.'
artusmundi.org