 For theorists of this persuasion, these phenomenally evident spatial, causal, etc., relations among contents explain why my perceptual states typically present one coherent world in which, for instance, a wall in front of me and starting at one end of my visual field will continue across that field. Are such connections among the contents of an experience necessary for their being presented together in experience? Some recent theorists have argued that they are not (Bayne 2004; Brook 2005). One can have unified consciousness of a siren that that one is hearing, an average grade that one is calculating, and a fictitious landscape that one is visualizing. In what possible way could items as diverse as these have to be connected to one another? They are not even all in space or contiguous to one another and they are certainly not causally interconnected, yet I can experience all three in a single act of unified consciousness. 