Ahavuye isanamu, Getty Images Insiguro y'isanamu, Ubwonko bwacu bufata n'ingoga iyo ari ikintu gishasha kije Hermann Ebbinghaus, umufilozofe w'umudagi wo mu kinjana ca 19 yabaye umuntu wa mbere yize ingene ubwonko bwegeranya inkuru zishasha.
