This material is largely retrospective, historical, scholarly—but its conclusions are non-standard:

5 BELIEF — The benefits of religion come from belief itself, not from a god.
6 THEORIES — Religion got us out of the animal kingdom after 160,000 years in the Middle Paleolithic rut.
6a SURVEY — We don’t all mean the same thing by ‘religion’.
7 ANOMALIES — The Gospels, and Murphys Law, have similar recension histories.
8 ARGUMENTS — The natural theology of the universe is hierarchical polytheism.