Robots are the most powerful blank slate humans have ever created. Want a helpful robot? No problem. Want a mean one? Sure, if that’s what you’re into. A robot is a mirror held up not just to its creator, but to our whole species: What we make of the machine reflects what we are. That also means we have the very real opportunity to screw up robots by infusing them with exaggerated, overly simplified gender stereotypes. So maybe robots aren’t simply a mirror.