mechanism	carrier_path	description	anchor
M1	Person -> Person(same carrier over time)	Autocatalytic conferral	Gould 2002
M2	Person_t -> Person_t+n	Cumulative advantage / historical drag	Smith & Faris 2015
M3	Person/Org A -> Person/Org B	Associative status spillover	Overton 2021; organizational status
M4	Person A -> House/Office -> Person B	Institutional carrier substitution	Moore 1970; Kumanomido & Takayasu 2026
M5	Person -> Narrative/Ritual -> Future audience	Narrative/symbolic re-encoding	Berl et al. 2021; prestige learning