Metaphysics: Synonym for basic assumptions, core beliefs or Opinions. Ultimately, metaphysics are a matter of belief. At the same time, any science is based on assumptions. In order to progress, we need to uncover and question our basic assumptions, and be ready to revise them if reality finds them wanting. Examples of our metaphysical beliefs are Maker's Knowledge, Everybody is always somewhat right, Entropy, Negativity, Threshold, and Interface.