 According to Anderson, one central confusion infecting modern philosophy since Descartes has been its obsession with epistemological questions, the attempt to provide unshakeable foundations for our knowledge of the external world. There is no gap between mind and world that needs to be bridged because mentality belongs to the spatio-temporal world along with everything else. This is not to say that misunderstanding is impossible, just that understanding is possible. It is possible to know various conditions and characters of things in the first place only because things have these characters independently of our inquiries. And since as knowers we occupy the single world of space and time we come under the same conditions and so come into relations with those things that we are investigating. All knowledge depends upon empirical investigation and so is fallible: it is not built upon any more immediate or reliable entities such as sense data or self-evident ideas. Epistemological and ontological bedrock is the complex situation of being there and so, a particular’s being of a certain kind. Knowing minds are themselves complex spatio-temporal things, societies of emotions and feelings without a unifying consciousness to which these might belong nor some ultimate self which could conceivably take a stand somehow outside and beyond the world of space and time. Modern philosophy’s epistemological obsession can be regarded as an illogical attempt to look behind the proposition, to gain a sideways view of how our propositions hook up to the real world.