This work shares affinities with The Other Wall, a wall built into the gallery on one side, with each brick numbered in chalk and then randomly placed during construction. This was the only work I found a little harder to grasp, all concept over aesthetic. It is about randomly arranged objects, the millions of permutations of the same bricks. And this is reflected in the work that dominates the space: 10000000000000000, a giant chessboard covered in beach pebbles, also arranged at random. The different shades of pebble create patterns, darker areas that appear like clouds across the sea and lighter areas like spots of sunlight. Perhaps if my mind were mathematically inclined the wall full of numbered bricks would form similar patterns, with clusters of numbers creating ‘dark’ and ‘light’ areas according to whether they were prime or not. I also imagine the gallery assistants laying out the pebbles, one by one, slowly. And perhaps this is one connection with the 80-minute video that plays on the far wall, Construction Site, which Wallinger sees as a homage to manual labour.