" The road back to reality, we suggest, begins by making two affirmations about nature: the uniqueness of the universe and the reality of time. These together have an immediate consequence which is the central hypothesis of our program: that the laws of nature evolve, and they do so through mechanisms that can be discovered and probed experimentally because they concern the past. "

― Roberto Mangabeira Unger , The Singular Universe and the Reality of Time: A Proposal in Natural Philosophy