Michael Vassar: excavation reveals that native Americans habitually stampeded bison herds over a cliff, yielding vastly more meat than they could use, so perhaps your estimate of the efficiency with which hunters were able to utilize bison meat is overoptimistic?
Douglas Knight: no, I cannot point to actual calorie counting, and maybe I misremember.
Michael Vassar: excavation reveals that native Americans habitually stampeded bison herds over a cliff, yielding vastly more meat than they could use, so perhaps your estimate of the efficiency with which hunters were able to utilize bison meat is overoptimistic?
Douglas Knight: no, I cannot point to actual calorie counting, and maybe I misremember.