I think there is a mathematical affect as well. Julian was a math teacher, and there were several math references, including the girl on the phone repeating "calculus" over & over, before she died.

i agree, and why does the film focus on a math and science teacher? i'm thinking about how the greeks used to use math in corrolation with astronomy and philosophy. i'm not that book smart to remember anything but i'm sure theres a connection there.