The second point, Meta-physical (it should be stressed – not metaphysical), divides them from logical inclusions, which use the 'better' physics of other universes to improve themselves. Note that Dukaj defines metaphysics as the science of changing physics (physical constants).
The second point, "Metaphysical," emphasizes a distinction between these entities and those based on logical principles. These latter rely on the superior physics of other universes for self-improvement.  Dukaj defines metaphysics as the study of changing physical constants.