What Cannot be Copied

One of my former colleagues brought up a discussion topic, a topic that has been discussing for ages by countless marketers -- what idea is impossible/hard to copy?

My own take on this topic is simple -- people. People says "great minds think alike", but in reality, no mind thinks alike. We are unique indeed. You can physically clone a person, but never mentally or psychologically.

For example, can you copy Stephen Chow or Dayo Wong? It seems outright impossible, at least the history has failed to present us a proof of any successful clone.

So if your idea centers on people, you are, technically speaking, half anti-copy.

Agree or not? Please share your thoughts on the comment box.