@unpublished{blok_conditions_2002,
	title = {Conditions for memetic driving},
	abstract = {Assuming culture is transmitted horizontally (via imitation) a model was constructed to determine the conditions under which culture can dominate genetic evolution ("get off the leash" according to Blackmore). Two requirements were found: (1) culture must compete with genes (required only for the effect to be empirically testable); and (2) Interactions between individuals must be confined to small groups or neighbourhoods. The model was tested via analysis and simulation.},
	version = {1327},
	author = {Blok, Hendrik J. (Rik)},
	date = {2002},
	note = {Unpublished.},
	keywords = {Rik's work}
}