polarbear, I'm wondering-- which textbooks become outdated quickly?

In social studies, I can certainly see how this is a problem, and also in technology related coursework.

But in most math, literature, science, etc. classes, I guess I just don't see this as a problem of any kind. The rate of change there is VERY low, at least up to the undergraduate collegiate level.

Schrödinger's cat walks into a bar. And doesn't.