Dennett's point, or at least the point he was trying to make 20 years ago, is that one of the reasons consciousness confuses us is that it isn't actually quite what we imagine it to be. Our visual experience seems continuous, but we know from eye saccade movements that it cannot be. The way we feel the passage of time seems very straightforward, but the 'cartesian theatre' fallacy shows that our brain by necessity can't be processing things in a specific order.