Well they kind of survived by burning buffalo poop and by killing the buffalo too. Buffalo have lots of uses ya know!
Answer:
the goal of vocabulary is understand the world around us
I believe true but statistics show it is random and all over the place with partial openings and partial closings.
The answer is "Elaboration".
Elaboration is a methodology which includes doling out data
which is meaningful to something you are endeavoring to commit to memory, which
thus would make the non-meaningful data simpler to memorize. Elaboration is the
advancement of a current thought by joining new data to enlarge the thought.