What is "an idea"? Any idea? On any programming field? Am I not a coder because I don't know how to make a osx app? And what is a reasonable amount of time? Aft

What is "an idea"? Any idea? On any programming field? Am I not a coder because I don't know how to make a osx app? And what is a reasonable amount of time? After all, I can make an osx app, taking way longer than someone who has experience making osx apps, but waaaay faster than someone who doesn't know anything about programming. Maybe that's enough? Ah but, I know how to make a http rest api in a fraction of time. So maybe that is enough to be a coder? So the osx app isn't needed after all? So maybe it's any idea? But how about if it's a trivial idea, like something I can make using excel? Is that still coding? Or only if I use advanced excel scripting, but not if I just use basic formulas? And what is "working implementation"? Something that people pay you for? Something that has any users besides you? Or something that brings value to at least one person, even if that person is yourself?