Fair enough. I was thinking more about modern-day adult owls with their "look at me, I can't function without coffee, ha-ha" jokes. 10-20% degradation wouldn't

Fair enough. I was thinking more about modern-day adult owls with their "look at me, I can't function without coffee, ha-ha" jokes. 10-20% degradation wouldn't be visible that way, especially given that people came in with huge academic variance already and there is no baseline to work with.