The universe is only material.


 * Reality consists of more than material objects; it also possesses aspects that cannot be reduced to matter alone. For example, space and time are relations of material objects that cannot be localized to the individual objects themselves, at least as locality  is generally understood; they are greater than the objects they relate, permitting those objects to interact in ways that cannot be expressed solely in terms of their individual identities. Equivalently, we cannot reduce the universe to a set of material objects without providing a medium (spacetime) in which to define and distribute the set. It follows that spacetime possesses a level of structure defying materialistic explanation. Indeed, insofar as they possess spatiotemporal extension, so do material objects!