There are 50,000 facts prove evolution incompatible with chance.  The shamans were great believers in the mission of chance as revelatory of the will of the spirits; they frequently cast lots to arrive at decisions. 
The savage strives to personalize everything intangible and abstract, and thus both nature and chance become personalized as ghosts—spirits—and later on as gods. 
To continue to ascribe things difficult of comprehension to supernatural causes is nothing less than a lazy and convenient way of avoiding all forms of intellectual hard work. Luck is merely a term coined to cover the inexplicable. 
See also: UB 86:1.