I think I'm an actor. You can hire me. I can do a good job. But you also have to get lucky now and then. Every film-maker knows how hard it is to do a good film. You have to just make many, and see how lucky you get.
Monofilament is what you use to go fishing. The line on your fishing rod is probably going to be black. You get to the end of the line and you tie on this clear plastic, thin thread called monofilament.