1. A voxel database representing a volumetric storage space comprising a set of unique volumetric storage units called voxels, wherein data elements are stored to specific ones of the voxels, wherein a spatial position of the data elements within the volumetric storage space is defined at least in part by which of the voxels the data elements are stored, wherein the voxel database is a probabilistic database in which each of the data elements has an associated probability, which is determined based on a level of consistency between that data element and other ones of the data elements that are stored in the voxel database.