[notahacker]

But human representations do degrade to the extent we forget detail, and also the information changes (sure, the odour might be the same and the experimental controls perfect, but an organism probably should change how they process it over time "new, unfamiliar odour", "smelt that yesterday"... "wonder if anything's happening related to that odour which emerged recently", "meh, background odour") so some of the information update is additive