Why People Don't Believe Plato

Scholars don't believe that Plato's sequence is a generalized historical model based on empirical research. The narrative of fallen decline in books 8 and 9 describe what would happen should Calipolis ever come into existence. But since it hasn't, there is no way to know if Plato's prediction is right. Another reason why scholars today don't take Plato's model seriously is that they believe he didn't have access to good data.