Gillian Varney interview Observer arts Sougwen Chung, Artefact 26, 2024; Acrylic on canvas, created with D.O.U.G._4 A.I. Robot, 98 x 95 cm, 38 5/8 x 37 3/8 in. 10/03/24 5:20pm Gillian Varney On the Lumen Prize and Its Relevance After Thirteen Years