It's all still just words. No two humans could ever fully agree on what constitutes "harm", racist ones would even debate who is "human".

It's like everybody has the public methods what_is_harm() and what_is_a_human(), but how they're implemented matters, not the function signature. The laws of robots are just placeholders for something that never got written.

Words are tricky. What if robots decide that the best way to avoid harm coming to humans is to prevent any being born? So that means you have to rephrase it, into something like maximizing human happiness. Oh no, now they're injecting everyone with drugs and cloning humans by the planetfull. What now? Actual source or it didn't happen.. just creating an empty file called solution_to_the_problem.txt doesn't work, I tried it.