Michael Pelczar presents an original account of space, time and conscious experience. How does the modern scientific conception of time constrain the project of assigning the mind its proper place in nature? On the scientific conception, it makes no sense to speak of the duration of a pain, orthe simultaneity of sensations occurring in different parts of the brain. Such considerations led Henri Poincare, one of the founders of the modern conception, to conclude that consciousness does not exist in spacetime, but serves as the basic material out of which we must create the physical world.The central claim of Sensorama is that Poincare was substantially correct. The best way to reconcile the scientific conception of time with the evidence of introspection is through a phenomenalist metaphysic according to which consciousness exists in neither time nor space, but serves as a basis forthe logical construction of spacetime and its contents.