Well, as far as I can tell, he has no idea if coming up with the idea was easy. And anyway, I'm not sure ideas are valued based on how hard they are to come up

Well, as far as I can tell, he has no idea if coming up with the idea was easy. And anyway, I'm not sure ideas are valued based on how hard they are to come up with. Work can be based on replacement value, but I don't think you can do that with ideas.