It’s far from perfect in newborns (containers take some time to understand, and in general infants have weak short-term memory). I also wonder how much effort g

It’s far from perfect in newborns (containers take some time to understand, and in general infants have weak short-term memory). I also wonder how much effort goes into updating MCAT questions with new scientific developments, especially when there is limited clinical significance - an infant who struggles with object permanence likely has serious neurological/cognitive problems across the board.