It’s how we organize great densities of things, along the X and Y axes, how we push things together so we can pull them apart again, by requiring ourselves to traverse them always only up and down or back and forth. Such spaces Y had always found difficult to navigate. X called it Agnosia del piano cartesiano. Cartesian Grid Agnosia. It was just one more tyranny of reason to Y’s mind. Thought may be able to move in space that linear, but not a body, not her body. Y wanted to move always along a curve.