How do I know if I am a 'ninja' or a 'rock star'? Is it one of those "If you have to ask, you aren't" things? Do people really call themselves those things? "I

How do I know if I am a 'ninja' or a 'rock star'? Is it one of those "If you have to ask, you aren't" things? Do people really call themselves those things? "I'm a rock star developer. I'm a ninja." Hacker, ok. There's nothing boastful about that term. You could be a really low-skilled but interested hacker.