Riggs, Peter J.2023-07-192023-07-190932-0784http://hdl.handle.net/1885/294404The Planck Era cannot be given an accurate mathematical description until the full theory of quantum gravity is available. However, some aspects of the physical state of the Planck Era can be revealed by order of the magnitude considerations which also have implications for the low entropy of the very early universe.application/pdfen-AU© 2018 Verlag der Zeitschrift fur NaturforschungThe Physical State of the Universe in the Planck Era201810.1515/zna-2018-01102022-05-15