### "Math is hard"

Mattel got a lot of flack for its talking Barbie doll which said "Math is hard." I wanted to reprogram the voice chips to say "Partial differential equations with Neumann boundary conditions are hard." It's not that I completely disagreed with Mattel, I just thought Barbie should have been more specific. Imagine the conversations: "Mommy, what's a Neumann boundary condition?" "Well you see dear, that's when you fix the value of the derivative on the boundary curve." But then, I've been working on nerd propaganda for decades.