This is very good remark. I saw Vsauce video about chimpanzees' photographic memory compared to normal human memory. Proposed explanation is cognitive tradeoff

This is very good remark. I saw Vsauce video about chimpanzees' photographic memory compared to normal human memory. Proposed explanation is cognitive tradeoff hypothesis - basically that while chimpanzees' memory is visual, human memory is influenced by language - basically how you describe event in your head.