... when your 15yo college student impishly notes that she nearly missed her math professor's apologetic plea to the class to be sure to at least LOOK past the first quiz question so that they can look up how they would approach the last problem...

WHY?

Oh, because she was busy finishing the LAST question at the time.

"Mom, it was this AWESOME angular momentum problem!" Then she provided me with details, including excited and expansive hand motions, and sighed wistfully. "Physics is SO BEAUTIFUL with calculus. SO beautiful."



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