Has Physics Gotten Something Really Important Really Wrong? In their book, The Singular Universe and the Reality of Time: a Proposal in Natural Philosophy (Cambridge, 2014), Unger and Smolin caution that, “Science is corrupted when it abandons the discipline of empirical validation or dis-confirmation. It is also weakened when it mistakes its assumptions for facts and its ready-made philosophy for the way things are.” This review of the book says cites this as the most radical of Unger and Smolin’s radical ideas: the universe is time-bound and time-saturated. Thus, there is no eternal reality of perfect mathematical form. Even the laws of physics themselves must be subject to change.