Clearly, schematic knowledge helps you ― guiding your understanding and enabling you to reconstruct things you cannot remember.
(A)
Likewise, if there are things you can’t recall, your schemata will fill in the gaps with knowledge about what’s typical in that situation. As a result, a reliance on schemata will inevitably make the world seem more “normal” than it really is and will make the past seem more “regular” than it actually was.
(B)
Any reliance on schematic knowledge, therefore, will be shaped by this information about what’s “normal.” Thus, if there are things you don’t notice while viewing a situation or event, your schemata will lead you to fill in these “gaps” with knowledge about what’s normally in place in that setting.
(C)
But schematic knowledge can also hurt you, promoting errors in perception and memory. Moreover, the types of errors produced by schemata are quite predictable: Bear in mind that schemata summarize the broad pattern of your experience, and so they tell you, in essence, what’s typical or ordinary in a given situation.