Take diesel tuners: reverse-engineering a truck's ECU to strip emissions controls built an entire gray market, all shielded by "understanding the device." Extend that logic to insulin pumps or car immobilizers, and people get hurt. RoberRed says patents and trade secrets cover cloning, but that's exactly my argument. Those laws are slow, national, and useless against counterfeiters shipping from anywhere. "Always legal" does not just protect the repair shop tinkerer. It protects the cloner. That is the flaw.