It seems to me that “friendly AI” is a name for the entire field rather than a particular approach, otherwise I don’t understand what you mean by “friendly AI”? More generally, it would be nice to provide a link for each of the approaches.
It seems to me that “friendly AI” is a name for the entire field rather than a particular approach, otherwise I don’t understand what you mean by “friendly AI”? More generally, it would be nice to provide a link for each of the approaches.