Just as astronomers, etc. have created a standard model of the cosmos, and physicists have created a standard model of matter and energy. There has also been a standard model for living in the U.S.A., All of science is tentative, subject to revision and based on the preferences of some of the people who created the standard model. The standard models are convenient, because they explain many things and allow specialists to look at the iffy spots and to find inconsistencies. For example, ...