 H. E. Baber (2002) argues that a Trinity theory may posit the Persons as “successive, non-overlapping temporal parts of one God” (11). This one God is neither simple nor timeless, but is a temporally extended self with shorter-lived temporally extended selves as his parts. This does not violate the requirement of monotheism, because we should count gods by “tensed identity”, which is “not identity but rather the relation that obtains between individuals at a time, t, when they share a stage [i.e. a temporal part] at t” (5). At any given time, only one self bears this relation of temporal-stage sharing with God.