Where did hipsters come from?

Where did this attitude of being so self important and careless come from? I am almost sensing it's a fashion statement and attitude more than a lifestyle.

They seem to be defined by what they are NOT and by people who are not themselves.

Were they yesterday's emo kids who got tired of pretending to be depressed or learned nobody gives them the attention they want?

Were they preppy Abercrombie kids who got sick of being hated for being rich, so act poor?

Were they white kids who wanted to be black (but change white to rich and black to poor), like "whiggers"?

Or were they computer geeks who do what they do best, fail at being impressive?

Were they straight edge kids who never get in trouble, but figured a little smoke and alcohol won't kill them?

Are they just a new code word for "skinny people only" but couldn't pull it off due to political correctness?

Are they the people who are super picky about what they eat, and try to do yoga in their uniforms?

They didn't come out of nowhere, and won't disappear quickly either.