Hirsch says that in order to be culturally literate one only needs to know a certain amount of specific ideas. If there are 5,000 ideas that when known are adequate for understanding a culture then if it were easy to look up these 5,000 ideas on demand the culture would be understood. Raskin proposes that a computer could store a list of these ideas along with descriptions making "it easy for an uncultured person encountering one of the expressions to look it up in the database and get the general picture" ( Raskin, p. 202). Hirsch believes that schools provide the common background, but if a database of cultural references existed then schools would not need teach what the students already have easy access to. The schools could teach the students how to use the database and the students would never need to become culturally literate.