The thesis that time is real states that time "really is real" and everything is subject to history. This move is to historicize everything, even the laws of nature, and to challenge our acting as if time were real but not too real—we act as if it is somewhat real otherwise there would be no causal relations, but not so real that laws change. Unger holds that time is so real that laws of nature are also subject to its force and they too must change. There are no eternal laws upon which change occurs, rather time precedes structure. This position gives the universe a history and makes time non-emergent, global, irreversible, and continuous.