A paleontologist from the distant future travels to 21st century New York to discover what caused the extinction of Homo sapiens, but finds himself having to choose between saving the human race or his own species.

Fromme, however, is much more interested in meeting the most famous human in history – the woman who wrote the quantum physics paper upon which all future science is based. However, Fromme's efforts to meet Zenobia Malmud trigger events that make it increasingly less likely that the paper will ever be written.

The Theory of All Things is a darkly humorous tale of humanity's end days and the participation in same by prophets, dragons, time travelers, space aliens, world leaders and very ordinary people. This light-hearted look at human extinction ultimately answers the nagging, overriding question: Why is there evil in the world?